ГИБРИДНЫЙ СВЕРХВЫСОКОЧАСТОТНЫЙ ПРИБОР ТИПА О

... 1. Гибридный сверхвысокочастотный прибор типа О, содержащий N-секций замедляющей системы резонаторного типа, периоды которых удовлетворяют соотношению где dn - величина периода n-й секции; fn - нижняя частота полосы пропускания n-й секции; N - число секции, отличающийся тем, что нижние частоты fn полос пропускания секции прибора выполнены в пределах где f1 - нижняя частота рабочей полосы; f2 - ее верхняя частота, на нижних частотах полос пропускания секции прибора замедление рабочей пространственной гармоники каждой секции равно замедлению электронного пучка с погрешностью не более 3% где С - скорость ветра; Vпн- фазовая скорость рабочей пространственной гармоники n-й секции на частоте fn; Ve - скорость электронного пучка, параметр скорости вnкаждой секции на частоте fn+(f2-f1) не превосходит 3 2. Прибор по п.1, содержащий 3 секции (N=3), в котором нижние частоты полос пропускания первой и третий секции выполнены в пределах а нижняя частота полосы пропускания второй секции установлена на ...

Электронный СВЧ-усилитель

Wanderfeldroehre, insbesondere zur Verstaerkung ultrahochfrequenter Schwingungen

Wanderfeldroehrenanordnung mit gekreuzten elektrischen und magnetischen Feldern, wobei das Magnetfeld von einem in einem axialen Leiter fliessenden Strom erzeugt wird

MINIATURKREUZFELDVERSTÄRKER MIT HOHER VERSTÄRKUNG.

Lauffeldroehre mit steuerbarer Ausgangsleistung

Hochleistungs-Vorwaertswellenverstaerkerroehre mit einer Mehrzahl von Magnetronentladungssystemen

Magnetron mit internem Magnet

Improvements in or relating to travelling wave amplifying waves

... 663,728. Magnetrons; travelling-wave tubes. COMPAGNIE GENERALE .DE TELEGRAPHIE SANS FIL. Oct. 29, 1947 [Jan. 9, 1947], No. 28840/47. Class 39 (i). A magnetron amplifier comprises two circular concentric electrodes 1, 2 forming a waveguide having delay line characteristics in which electromagnetic waves propagated from an input coupling E to an output coupling S interact with electrons emitted from a cathode K, and travelling under the influence of a constant radial electric field and a constant axial magnetic field; a partition P prevents the electrons and the electromagnetic waves from passing beyond the output coupling S towards the input coupling E. The delay line characteristics are introduced into the wave-guide by providing the electrode 2 with radial slits F. In a modification, the electrodes 1, 2 are each formed by a flat wire helix.

Improvements in thermionic valves for ultra-short waves

... 677,536. High-frequency discharge apparatus. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. July 20, 1949 [July 20, 1948], No. 19160/49. Class 39 (i). An electron beam tube comprising two parallel conductors 1, 2 between which an electrostatic field is established and wherein a constant magnetic field is applied perpendicular to the electric field and the direction of propagation of the beam, the two conductors constituting a retardation line in which is excited an electromagnetic wave whose speed of propagation is substantially the same as the speed of the beam, whereby the wave is amplified by interaction with the beam, is characterized in that a plurality ot cathodes 8 are distributed along the retardation line at intervals whereby the beam of each subsequent cathode interacts with the wave when the amplification due to the interaction of the beam of the previous cathode no longer increases sufficiently; preferably the distances between successive cathodes diminish from the input to the ...

Improvements in Delay Lines

1,195,753. Travelling-wave tubes. THOMSON C.S.F. 10 Jan., 1968 [13 Jan., 1967], No. 1418/68 Addition to 1, 032,680. Heading H1D. The electronic delay line of Fig. 5 of the parent Specification is modified, Fig. 1, to permit the use of a smaller magnet, by folding the sole electrode 6 around the positive electrode 8. In a further modification, Fig. 4, electrode 8 is replaced by a plurality of spaced electrode portions, each with a separate lead, whereby the lower limit of delay time to which the device may be adjusted may be reduced by adjustment of the relative potentials of the various portions 22, 23, and 26 to cause the electron beam to by-pass portion 26, or portions 26 and 23, by passage through the channel 27 or 24 respectively.

Travelling wave tubes

... 953,079. Travelling-wave tubes. RAYTHEON CO. Nov. 2, 1960 [Dec. 18, 1959], No. 37726/60. Heading H1D. A crossed field travelling wave tube has a slow wave propagating structure 17, Fig. 1, an elongated electrode 19 coextensive therewith and defining therewith an interaction space, a cathode 12 injecting electrons at one end of the space and collecting electrodes 22, 24 at the other end of the space, electrode 24 being in line with the cathode and the electrodes 22, 24 being at different potentials so that the field in the collecting electrode space is different from the field in the interaction space so causing electrons to flow to electrode 24. The tube may be of linear or of circular form, Fig. 2 (not shown). An accelerating electrode 15 is provided opposite the cathode 12 and V 22 #V 15 , V 14 # V 12 , V 24 #V 19 . In the circular tube of Fig. 2 (not shown), the delay line is interdigitated, a periodically loaded waveguide or a strapped vane. The devices are backward wave oscillators ...

Improvements in and relating to electromagnetic wave propagating structures

... 655,410. Travelling-wave tubes; magnetrons. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 6, 1947. No. 26794. [Class 39 (i)] [Also in Group XL (b)] An electromagnetic wave propagating structure for propagating electromagnetic waves with a phase velocity substantially less than the free-space velocity comprises a waveguide or coaxial or strip transmission line to which is coupled a plurality of cavity resonators the spacing and/or the natural frequency of which varies in accordance with a repetitive law such that the resonators and the spaces between them may be divided into a plurality of like groups, a group constituting the smallest repeated pattern of the resonators and spaces and comprising at least three resonators and three spaces the resonators of the group being of more than one natural frequency and/or the spaces being of more than one magnitude whereby the structure has a low dispersion over a substantial frequency band. In one form, Fig. 9, the resonators are grouped in threes ...

Improvements in or relating to pulse-modulating circuits for travelling wave tubes of the crossed field type

... 751,034. Travelling-wave tubes; magnetrons. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 18, 1954 [March 18, 1953], No. 7972/54. Class 39 (1). [Also in Group XL (c)] The output of a travelling-wave magnetron is modulated by applying pulses between an auxiliary electrode 7 which supports the cathode 3 and the delay line 2. The auxiliary electrode is located in prolongation of the negative electrode 4. The cathode is normally blocked by a positive bias voltage on the auxiliary electrode. The auxiliary electrode may be electrically connected to the cathode. The cathode is indirectly heated, and the modulating pulses are applied to a transformer which has two secondary windings 17, 8 inserted in the cathode heating circuit. The pulses may be applied to a transformer which has its secondary winding inserted between the delay line and the cathode heating circuit. The auxiliary electrode is shaped to avoid deformation of the electric field.

Travelling wave electron discharge device

... 1,014,840. Magnetrons. RAYTHEON CO. Sept. 6, 1963 [Oct. 26, 1962], No. 35374/63. Heading H1D. [Also in Division H4] In a magnetron amplifying structure in which a circumferentially moving space charge interacts with an axially propagating plane polarized travelling-wave, the anode comprises axial vanes and the interaction space comprises two parallel straight sections interconnected by curved end sections. The wave travels in the spaces between the vanes and is in opposite phase in adjacent spaces while the tip of each space charge spoke into which the electrons are bunched is slightly tilted with respect to the direction of wave propagation. As shown, the structure comprises a stack of anode-cathode assemblies each including a rectangular vaned anode body 113, with end half-cylinders 115, 116, and a pair of planar cathode assemblies 114, with contoured end shields 146, 147, to form upper and lower straight interaction regions 137, 138. Phase shifting sections are formed at each end of ...

Improvements in or relating to electron tubes of the crossed-fields type

... 762,023. Magnetrons; travelling-wave tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. May 13, 1954 [May 13, 1953], No. 14112/54. Class 39(1). The negative electrode 2, Fig. 1, of a magnetron with anode 1 and collector 4 has grooves 8 to prevent secondary emission. The grooves may slope away from the cathode 3. In addition a negative electrode may be provided in front of the electrode 2 or the front face of the electrode may be coated with graphite. Anode 1 may be the delay line of a travelling-wave tube. In a circular multi-cavity magnetron, Fig. 7, the cathode is a number of filaments 16 encircling negative electrode 17, or, Fig. 9, two circular cathodes 22 are placed on either side of the electrode 17. The heaters 23 are connected in series through axial hole in electrode 17.

Tube à faisceau électronique et à onde progressive.

Tube à onde progressive comportant une cathode de forme générale cylindrique.

Elektrischer Hochfrequenzverstärker für Zentimeter- und Dezimeterwellen.

Tube amplificateur à onde progressive avec champ magnétique transversal.

Elektromagnetischer Wellenleiter.

Wanderwellenröhre.

Rasierhobel.

Lampe amplificatrice à onde progressive avec champ magnétique transversal.

Tube amplificateur pour ultra-hautes fréquences.

Elektronenröhre für sehr kurze Wellen.

Tube électronique pour ondes ultra-courtes.

Amplificateur hyperfréquence à ondes progressives, de grande puissance

Wanderwellen-Vorrichtung

Entladungsvorrichtung zur Erzeugung von Mikrowellenenergie

New generator of noise

Amplifier of waves progressing in the direct direction, with broad band

Similar waveguide and devices

Improvement with the tubes intended for the transmission of ultra-short waves

Electron tube intended for the transmission of ultra-couités waves

Tube amplifying with wave propagation with magnetic field produced by a current circulating in an axial driver

Amplifying lamp with travelling wave with magnetic field

Improvements with the electron tubes for ultra high frequencies

Improvements with the tubes with wave propagation with transverse magnetic field

Tube with wave propagation with transverse magnetic field with great profit

VERFAHREN ZUR HERSTELLUNG EINES FREIFLIESSENDEN SICH AUSDEHNENDEN ZEMENTBREIS

Wanderfeldroehre

Slow wave apparatus

... 967,966. Travelling-wave tubes; magnetrons. S-F-D LABORATORIES Inc. Oct. 16, 1961 [Oct. 14, 1960], No. 37031/61. Heading H1D. A slow-wave structure, e.g. for an " M "-type travelling wave tube, comprises a plurality of regularly spaced parallel conductors 1, Fig. 1, a pair of opposed boundary members 2 joining together the extremities of the conductors, a first plurality of transverse conductors 3 spaced from one of the boundary members and closer to this boundary member than to the opposite boundary member and connecting alternate parallel conductors to the parallel conductor on one side thereof, a second plurality of transverse conductors 3 spaced from the opposite boundary member and closer to this boundary member than to the first-named boundary member and connecting the said alternate parallel conductors to the parallel conductor on the other side, the outer portions of the parallel conductors extending from each transverse conductor to the boundary member closer thereto providing ...

Crossed-field microwave tubes

... 1,022,364. Travelling-wave tubes; magnetrons. S-F-D. LABORATORIES Inc. Aug. 1, 1963 [Aug. 1, 1962 (2)], No. 30611/63. Heading H1D. In a travelling-wave tube amplifier or magnetron oscillator with a slow-wave-structure consisting of an array of half-wave resonant rods 22 coupled together capacitively in alternating fashion by means of members 52, in order to increase the band-width, the output coaxial line 58, and also the input line 57 if provided, has its axis parallel to the axes of the rods 22 arid, over a substantial portion, axially coextensive with them. The lines 57, 58 may project from the same end of the envelope instead of from opposite ends. The inner conductors 60 of the lines are connected to the adjacent rods 22 by pins 62, and capacitive matching tabs 64 couple the outer conductors 59 to the adjacent rods. These tabs may have further portions coupling with the members 52 connected to the alternate next adjacent rods 22. Matching may be alternatively, or in addition, achieved ...

Crossed-field amplifier

Improvements in or relating to travelling wave magnetron tubes

... 713,595. Travelling-wave tubes; magnetrons. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FILS. July 7, 1952 [July 27, 1951], No. 17078/52. Class 39(1) A travelling wave tube in which a wave injected into a delay line is amplified by interaction with an electron beam which is propagated parallel to the line and perpendicularly to crossed electric and magnetic fields, at a velocity equal to the ratio of these two fields and to the phase velocity of the wave, is modified to act as a frequency multiplier by dividing the delay line into two sections. The first section is traversed by a wave of the fundamental frequency to be multiplied, the beam velocity in this section being equal to the phase velocity of the wave. In the second section the beam velocity is made equal to the phase velocity of the desired harmonic wave. The amplified output of desired harmonic frequency is taken from this section. The two sections are separated by an attenuating region, and the beam velocity is changed in the second ...

METHOD AND APPARATUS FOR REDUCING NOISE IN CROSSED- FIELD AMPLIFIERS

PATENT APPLICATION of George K. Farney and F. A. Feulner for METHOD AND APPARATUS FOR REDUCING NOISE IN CROSSED-FIELD AMPLIFIERS Noise in reentrant-stream crossed-field amplifiers is suspected of being generated by electrons re-entering the interaction region with large amplitude cycloidal motion near the slow-wave circuit. Means to increase the electric field in a portion of the drift region preceding the circuit lowers the noise, presumably by collecting these electrons. The field may be increased by decreasing the spacing bewteen cathode and drift electrode or by applying a bias voltage on an insulated electrode. rbn2C9276 - 1 - 76-44 ...

Device with slow propagation of the waves for apparatuses working with the ultra high frequencies

ANODE VANE CROSSED-FIELD AMPLIFIER WAVE FRONT INNER SO COOLED.

Improvements with the tubes with cross fields electric and magnetic

Device with cross fields electric and magnetic

Improvements with the tubes with porgessives waves with crossed fields electric and magnetic, modulated by impulses

Travelling wave tube with two electronic beams being propagated in opposite direction

A CHAMPS CROISES

... a. Dispositif applicable aux amplificateurs à radiofréquence à champs croisés, ayant pour objet la réduction du bruit de ces amplificateurs. b. Admettant que le bruit est dû aux électrons rentrant dans la région d'interaction où il existe un mouvement cycloïdal de grande amplitude, près du circuit à onde lente, on propose d'augmenter le champ électrique dans une portion de la région de dérive précédant ce circuit, ce qui semble avoir pour effet de rassembler les électrons en question. On peut agir sur l'intensité du champ en faisant varier l'espacement entre les électrodes, ou encore en appliquant une tension de polarisation à une électrode auxiliaire isolée. c. Applications à tous tubes amplificateurs à radiofréquence du type à champs croisés.

TUBE AMPLIFYING HAS FIELDS CROSS AND HAS HIGH PROFIT

Improvements relating to the magnetrons

Impedance tapered dematron

A crossed field amplifier including a linear, ladder type slow wave device ncluding an array of closely spaced parallel U-shaped rungs with a pair of oppositely wound helices running side-by-side inside said array, and a pair of trimmers running along each side of said array of rungs, the trimmer height at the input or cathode end of said slow wave structure being increased compared to its height for the remainder of said slow wave device.

ГИБРИДНЫЙ СВЕРХВЫСОКОЧАСТОТНЫЙ ПРИБОР ТИПА 0

Изобретение относится к технике сверхвысоких частот, более конкретно к разработкам однорежимных и двухрежимных гибридных электронных приборов типа О. Техническим результатом является повышение электронного коэффициента полезного действия и уменьшение неравномерности амплитудно-частотных характеристик прибора как при работе в одном, так и в двух режимах. На нижних частотах полос пропускания секций прибора замедление рабочей пространственной гармоники каждой секции равно замедлению электронного пучка где с - скорость света, VnH - фазовая скорость рабочей пространственной гармоники n-й секции на частоте fn ее полосы пропускания, Ve - скорость электронного пучка, параметр скорости bn каждой секции на частоте fn+(f2-f1), не превосходит 3 bi, bII ..., bn, ... bN ≤3. Применение предложенного устройства в разработках мощных как одно-, так и двухрежимных приборов позволило уменьшить неравномерность выходной мощности в полосе 8% до 1 дБ и увеличить электронный коэффициент полезного действия. 4 ил ...

In der Frequenz fremdgesteuerte Magnetronroehre zur Erzeugung sehr kurzer elektrischer Wellen

Crossed-Field Discharge Device and Arrangement Using Same

... 1,158,589. Transit-time tubes. GENERAL ELECTRIC CO. 4 Aug., 1966 [30 Aug., 1965], No. 35033/66. Heading H1D. A crossed-field discharge device includes a cathode axially mounted within an anode formed by an annular member which has a plurality of axially extending recesses cut into its inner surface, and axially extending conductive rods mounted within the recesses and con - ductively connected to the annular member, whereby the anode constitutes an axially extending transmission line within which, by conductively enclosing each end of the anode or by coupling a coaxial line thereto, respectively, axially directed waves may be generated or amplified at a frequency for which the radial dimensions of the cathode-anode space precludes the maintenance of radially directed waves. In the device of Figs. 3 and 5, the cathode 140 is coaxially mounted within an anode structure formed by a copper cylinder 111 having its inner surface axially grooved to provide recesses 116 within each of which is ...

Improvements in travelling wave tubes

781,205. Travelling-wave tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. March 4, 1955 [March 4, 1954], No. 6521/55. Class 39(1). In a high power travelling-wave tube of the magnetron type, the negative electrode 27, Fig. 1, has a part 2 near the cathode which is highly secondary electron emissive and a part 3 near the collector which absorbs primary electrons and is prevented from emitting secondary electrons. Preferably part 2 is five times as long as part 3. The cathode and collector ends of the system may be curved, Figs. 9, 10. The negative electrode may be divided into an element 320, Fig. 11, with the cathode 301 and a secondary electron emissive part 310, an element 302 with a secondary electron emissive part 310<SP>1</SP> and an element 303 which absorbs secondary electrons. A relatively weak field between element 303 and collector 9 helps to prevent the escape of secondary electrons. The end of element 302 next to element 303 may also absorb secondary electrons. Element 303 may be subdivided into several parts at successively higher potentials. Element 303 may be wholly within the interaction space and nearer the delay line 305. In Fig. 12, element 421 is plane and element 422 has the secondary electron emissive and absorbent parts 410<SP>1</SP>, 403. The delay line has an attenuating zone 8, Figs. 1 and 10, or 308, Figs. 11 and 12. The tube may be of the backward-wave type with a circular structure. The highly secondary electron emissive parts may include a layer of a metal such as platinum deposited electrolytically, or of an alloy such as copper beryllium. Alkaline oxides may be deposited on a surface treated mechanically or chemically to form a rough or porous surface ; e.g. molten metal may be sprayed on the surface. The secondary electron absorbing parts may include parallel longitudinal grooves in the direction of the beam. Similar grooves may be provided at the sides of the secondary electron emissive parts.

Improvements in or relating to loaded waveguides

... 755,843. Waveguides. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 6, 1954 [July 15, 1953], No. 19610/53. Class 40 (8). [Also in Group XL (a)] A waveguide comprises two coupled regions, one of which is above and the other below cut-off for the H 01 mode of propagation. The dimension a of the guide of Fig. 1 is less than #/2 (where # is the free-space wavelength) so that the guide is dimensioned to cut off the H 01 mode. Region 3 of the guide is, however, loaded by means of a dielectric filling or by making it physically wider than the rest of the guide. The loading in region 3 may also take the form of a longitudinal ridge (Fig. 5, not shown) or plates 5, Fig. 6. Region 2 is below cut-off and is coupled to region 3 by means of a coupling structure 1 which may consist of a slotted plate, the cavities of which are rendered above cut-off by any of the means disclosed in Specification 741,355, e.g. by dielectric filling or by making the structure physically wider than region 2. In the construction ...

Tube amplifying with wave propagation with magnetic field produced by a current circulating in an axial driver

Improvements with the magnetrons

NEW OSCILLATING, AMPLIFYING ELECTRON TUBE

Device of removal of the current due to the secondary emission in the electron tubes with magnetic field

And propagation travelling wave tube of the beam in the cross fields electric and magnetic functioning in multiplier of frequency

Tube intended for the transmission of ultra-short waves and, more particularly, for their amplification

Electron tube with a delay line in the shape of propeller with interior driver

Improvements with the chamips, travelling wave tubes electric and magnetic crossed, circular structure

Amplifier with travelling waves of very great power

Improvements with the electronic guns for tubes with discharge with cross fields electric and magnetic

Travelling wave tube

Ultra short wave generator having a wide band of oscillation frequencies

A METHOD OF OPERATING A CROSSED FIELD AMPLIFIER

Electrical time delay apparatus

A low-noise crossed-field amplifier

A crossed-field amplifier circuit has a CFA tube (30) with respective slow-wave structures (31,32) for the anode and the cathode, each with an input (33,35) and an output terminal (34,36) and a magnetic field (28) in the axial direction. Signals of the same frequency from a common source (40) and of controlled phase difference and amplitude (39,41) are applied to the input terminals (33,35) of the anode and cathode slow-wave structures (31,32) whose fringing fields interact with the electron cloud between the anode and the cathode to form well defined cloud fingers (43). The resultant amplification of the input signals provides at the output terminal (34) of the anode an amplified signal having lower random noise than hitherto available from CFA amplifiers.

HIGH GAIN MINIATURE CROSSED-FIELD AMPLIFIER

Dans l'amplificateur miniature à gain élevé, à champ croisé d'onde directe, la structure d'anode à onde lente (32) comprend des aubes couplées à hélice double (19) ayant un pas prédéterminé de sorte que la distance entre le plan de symétrie de chaque aube (19) est sensiblement étroit par rapport à l'épaisseur de chaque aube (19). Les aubes (19) ont également une longueur et une hauteur prédéterminées, la hauteur étant supérieure à la moitié de la longueur. Les fils des doubles bobines hélicoïdales (28 et 30) possèdent une épaisseur en coupe qui est au moins d'un ordre de grandeur inférieure au plan du diamètre de symétrie de chaque spire des bobines (28 et 30). La distance entre le diamètre extérieur de chaque bobine (28 et 30) le long de la phase transversale de chaque aube (19) est très grande. Le rapport des pas des aubes (19) est inférieur à la moitié de leur épaisseur. Des aimants (10) en cobalt de samarium sont utilisés et ils possèdent des pièces extrêmes annulaires qui forment les parois de la chambre à vide. Un gain élevé compris entre 18 et 22 dB dans un volume approximatif de 50 pouces cubiques et un poids inférieur à 10 livres est obtenu. In the high gain, direct wave cross field miniature amplifier, the slow wave anode structure (32) includes coupled twin helix vanes (19) having a predetermined pitch so that the distance between the plane of symmetry of each blade (19) is substantially narrow with respect to the thickness of each blade (19). The vanes (19) also have a predetermined length and height, the height being greater than half the length. The wires of the double helical coils (28 and 30) have a thickness in section which is at least an order of magnitude less than the plane of the diameter of symmetry of each turn of the coils (28 and 30). The distance between the outside diameter of each coil (28 and 30) along the transverse phase of each blade (19) is very large. The pitch ratio of the blades (19) is less than half their ...

HELIX STRUCTURE OF ANISOTROPICALLY LOADED TRAVELING-WAVE TUBE AND ITS MANUFACTURE

PURPOSE: To obtain the helix structure of anisotropically loaded traveling-wave tube which is less expensive and easily manufactured, with durability against shock and working effectively. CONSTITUTION: Arranging a helix circuit 12 inside a conductive housing 10 supported by the multiple dielectric supporting members 16, the conductive material 18 is directly adhered to the dielectric supporting parts 16 generating anisotropic load. The dielectric supporting members are made of aluminum nitride, which is less expensive with high thermal conductivity, and the conductive material 18 is adhered by silk-screen method, etc. COPYRIGHT: (C)1994,JPO ...

METHOD AND DEVICE FOR REDUCING NOISE OF QUADRATURE ELECTROMAGNETIC FIELD AMPLIFIER

Прибор М-типа

Elektronenroehre mit steuerbarer Reaktanz

Improvements in or relating to travelling-wave tubes

... 809,757. Travelling-wave tubes. COMPAGNIE GENERALE DE TELEGRAPHIC SANS FIL. Feb. 14, 1957 [Feb. 20, 1956], No. 5059/57. Class 39(1). A travelling-wave tube with crossed E and H fields has two or more separate beams 25, 26 successively associated with the same delay line 2 and mutually uncoupled. The first beam 25 is emitted from gun 9 and caught by a collector 10 within a recess in the sole 3. The gun 11 for the second beam 26 is also within this recess, but is inclined to the main axis of the electrodes. Collector 10 may be surface treated to avoid secondary emission. The tube may be a backward-wave oscillator, with an internal or external attenuator, or a forward-wave amplifier, and the tube may be linear instead of circular.

Slow wave circuit and tubes using same

... 1,145,070. Slow wave structures. S-F-D LABORATORIES Inc. 8 June, 1966 [11 June, 1965], No. 25585/66. Heading H1D. A microwave tube apparatus comprises a slow wave circuit formed by an array of conductive vanes 2 projecting from a conductive wall structure and having free front and side portions, which define an array of cavity resonators, together with one or two conductive members, e.g. 9 and/or 11, overlying and spaced from the side edge portions of the vanes and which form the ground plane of the circuit, and a cathode 5 which produces an electron beam adjacent the front edge of the vanes for cumulative interaction with an r.f. wave in the slow wave circuit. The spacing between the cathode and vanes is greater than the spacing between the conductive member and the side edges of the vanes, and the conductive member either extends only over a part of the side edges of the vanes as shown in Fig. 7, or are closer to the vanes over this part than over those parts nearer the roots of the vanes ...

A METHOD OF OPERATING A CROSSED FIELD AMPLIFIER

1,223,091. Travelling-wave tubes. GENERAL ELECTRIC CO. 28 Jan., 1969 [7 Feb., 1968], No. 4764/69. Heading HID. A crossed field travelling-wave tube is operated with such relative values of the crossed fields that the electrons pursue cycloidal trajectories through the interaction region, which is thereby permitted to be of reduced length, since unfavourably phased electrons reach, and are removed by, the sole electrode, rather than, as in prior art devices, being gradually ahifted to a favourable phase as they progress along the interaction region. An electron gun proper may be dispensed with, the electron source being formed by a heated, emissive-coated portion 22 of the sole electrode 21. In modified arrangements, the emissive-coated portion may be separated from the remainder of the sole to reduce loss of heat from the heater (Fig. 4, not shown); the sole may be composed of a series of segments held at different potentials to facilitate collection of the unfavourably phased electrons; and the device may be of cylindrical form (Fig. 6, not shown).

Improvements in or relating to traveling-wave electron tubes

... 786,062. Travelling-wave tubes: magnetrons. RAYTHEON MANUFACTURING CO. June 22, 1954 [Aug. 5, 1953], No. 18332/54. Class 39(1). A travelling-wave tube of the magnetron type with a circular anode-transmission line and a circular cathode is designed for backward-wave operation. An R.F. choke 14, Fig. 1, separates the two ends of the line 10. Cathode 22 is emissive throughout and the electrons circulate endlessly around the cathode, but are confined in the axial direction by end shields 23. The line 10 consists of radial vanes 12 strapped at their inner ends. A matched termination 25 is coupled to the line at one end to absorb forward waves. The output load 52 is coupled at the other end. In another embodiment, Fig. 3, the line consists of rods 39 surrounding a cathode 30 and extending through the cover plate 27. The rods are connected together by inductances 41 and to cover plate 27 acting as a ground reference plane, by condensers 42. The oscillation frequency may be varied by varying the ...

Travelling wave tubes

... 928,540. Magnetron amplifiers. RAYTHEON CO. Jan. 20, 1961, No. 2428/61. Class 39 (1). A crossed field electron discharge device comprises a non-re-entrant delay line 12 having at least two terminals 54, 55, Fig. 2, which are mutually uncoupled except through the delay line, and a substantially continuous cathode, Fig. 1, co-extensive with a major portion of the delay line, in which the cathode is a cold cathode to which no external supply of energy is applied to elevate its temperature sufficiently to produce an electron flow sufficient to operate the device, and in which an external source of radio-frequency power is coupled to at least one of the delay line terminals 54, the magnitude of the power being at least sufficient to cause ionisation of residual gas in the device. The cathode is preferably comprised of a substance having a secondary emission ratio exceeding unity, e.g. nickel rods which may be platinum coated, copper rods, oxide coated, or tungstenthoria cermet cathodes containing ...

Improvements in microwave coupling and modulation apparatus

... 660,269. Electron discharge apparatus. RADIO CORPORATION OF AMERICA. June 8, 1948 [June 14, 1947], No. 15456/48. Class 39 (i). [Also in Group XL (c)] A magnetron device for variably coupling to a load circuit or amplitude modulating microwave energy comprises a magnetic field H coaxial with the electron beam, a microwave electric field of frequency 1/2#.e/m.H applied transverse to the beam to cause the electrons to follow spiral paths with radii dependent on the energy absorbed from the electric field, energy abstracting means adjacent the beam causing a reduction in the radii of the paths, and means controlling the energy of the beam. Either the control grid or an accelerating grid of the electron beam gun acts, by varying the beam current or electron transit time, to modulate or control the output energy. Between the electron gun and a final collector electrode may be arranged two pairs of electrodes, parallel or at right angles, and at equal or spaced distances along the beam, serving ...

Wing of anode of amplifier with fields crossed with waves before cooled in-house

La présente invention propose un amplificateur à champs croisés (10) à ondes avant et à ailettes couplées en double hélice utilisant des ailettes refroidies individuellement (38) dans le circuit à onde lente haute fréquence (RF). Plus spécifiquement, une ailette couplée en double hélice (38) est usinée pour créer un canal présentant la conformation d'un "U" sur un côté de l'ailette. Un tube d'agent de refroidissement d'ailette (24) formé selon une conformation en U correspondante est inséré et brasé dans l'ailette usinée. L'assemblage d'ailettes est ensuite fixé au corps d'anode (16) dont la paroi arrière comporte des trous formés pour accepter les tubes d'agent de refroidissement en provenance de chaque ailette.

Improvement with the electron tubes with transverse magnetic field

Electronic gun for tube with discharge with cross fields electric and magnetic

GENERATEUR D'ONDES RADIOELECTRIQUES POUR HYPERFREQUENCES

LE GENERATEUR CONFORME A LA PRESENTE INVENTION EST BASE SUR UNE INTERACTION DE TYPE CYCLOTRONIQUE ENTRE UN FAISCEAU D'ELECTRONS SE PROPAGEANT ENTRE UN CANON A ELECTRONS 1 ET UN COLLECTEUR 3 ET UN CHAMP ELECTROMAGNETIQUE HAUTE FREQUENCE DANS UNE STRUCTURE RESONNANTE 2. IL EST CARACTERISE PRINCIPALEMENT EN CE QUE LE FAISCEAU D'ELECTRONS 3 ...

Self-assembled helical slow-wave structures for high-frequency signals

Traveling-wave tube amplifiers for high-frequency signals, including terahertz signals, and methods for making a slow-wave structure for the traveling-wave tube amplifiers are provided. The slow-wave structures include helical conductors that are self-assembled via the release and relaxation of strained films from a sacrificial growth substrate.

Self-assembled helical slow-wave structures for high-frequency signals

Traveling-wave tube amplifiers for high-frequency signals, including terahertz signals, and methods for making a slow-wave structure for the traveling-wave tube amplifiers are provided. The slow-wave structures include helical conductors that are self-assembled via the release and relaxation of strained films from a sacrificial growth substrate.

High power electron tube with multiple locked-in magnetron oscillators

Cascade crossed field device

A crossed-field device having a plurality of slow wave energy propagating structures, each with an associated cathode, requires relatively low voltage for operation to provide a high power output. Electron beam current control is achieved by means of RF drive signals. Periodic permanent magnet focusing is utilized.

Thermionic tube for ultrashort waves

Traveling-field magnetron type electric discharge device

Traveling wave amplifier tube

Ultra-shortwave electron tube

Power control system for travelling-wave tube double amplifier

FIELD: electricity. SUBSTANCE: invention is referred to power control system for power control system for travelling-wave tube double amplifier and may be used in telecommunications satellites. In particular the power control system for travelling-wave tube double amplifier comprises at least two travelling-wave tubes (10, 24), each of them containing one zero anode electrode (13), electronic power converter, power control unit coupled to each travelling-wave tube (10, 24) and configure for setting zero anode electrode (13) to a certain minimum value when stand-by mode is actuated, at that power control unit maintains operating power of the travelling-wave tube (10,24) at value below its rated operating value. EFFECT: maintenance of operating power for the travelling-wave tube in stand-by mode below its rated operating range. 8 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК H03F 3/58 (13) 2 580 058 C2 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2011142692/08, 21.10.2011 (24) Дата начала отсчета срока действия патента: 21.10.2011 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): КЮИНЬЕ Этьен (BE), АНДРЭН Дени (BE), ТОНЕЛЛО Эмили (FR) 22.10.2010 EP 10290572.6 (43) Дата публикации заявки: 27.04.2013 Бюл. № 23 R U (73) Патентообладатель(и): ТАЛЬ (FR) (45) Опубликовано: 10.04.2016 Бюл. № 10 2 5 8 0 0 5 8 R U (54) СИСТЕМА УПРАВЛЕНИЯ МОЩНОСТЬЮ ДЛЯ ДВОЙНОГО УСИЛИТЕЛЯ НА ЛАМПАХ БЕГУЩЕЙ ВОЛНЫ (57) Реферат: Изобретение относится к системе управления электронный преобразователь мощности, мощностью для двойного усилителя на лампах средство управления мощностью, связанное с бегущей волны и может использоваться в каждой лампой (10, 24) бегущей волны, телекоммуникационных спутниках. Достигаемый сконфигурированное для установки напряжения технический результат - поддержание рабочей электрода нулевого анода (13) на определенное мощности лампы бегущей волны в режиме минимальное значение, если ...

Very high power magnetron amplifier

POWER CONTROL SYSTEM FOR DOUBLE AMPLIFIER ON RUNNING WAVE LAMPS

1. Система управления мощностью, в частности, для двойного усилителя на лампах бегущей волны, содержащая, по меньшей мере:две лампы бегущей волны (10, 24), каждая из которых содержит один электрод нулевого анода (13),электронный преобразователь мощности,причем система управления мощностью реализована в упомянутом электронном преобразователе мощности и отличается тем, что она содержит средство (22) управления мощностью, ассоциированное с каждой лампой бегущей волны (10, 24), сконфигурированное для установки напряжения электрода нулевого анода (13) в определенное минимальное значение, если активирован режим ожидания, причем средство управления мощностью поддерживает рабочую мощность лампы бегущей волны (10, 24) на значении ниже ее номинального рабочего диапазона.2. Система управления мощностью по п.1, дополнительно содержащая контур (226) управления катодным током, возбуждаемый средством (222) установки катодного тока и средством (220) обнаружения катодного тока, причем контур (226) управления катодным током возбуждает модуль (228) возбуждения нулевого анода, устанавливающий напряжение нулевого анода (13).3. Система управления мощностью по п.1 или 2, в которой двойной усилитель на лампах бегущей волны является двойным усилителем на лампах бегущей волны, в частности, содержащим линейные предварительные усилители, способные реализовать режим радиочастотного молчания одновременно с активацией упомянутого режима ожидания.4. Система управления мощностью по п.2, в которой упомянутый модуль (228) возбуждения нулевого анода, дополнительно содержит регулятор (2280), выход которого соединен с базой транзистора (2286) через базовый резистор (2282) в � РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК H03F 3/58 (13) 2011 142 692 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2011142692/08, 21.10.2011 (71) Заявитель(и): ТАЛЬ (FR) Приоритет(ы): (30) Конвенционный приоритет: 22.10.2010 EP 10290572.6 Адрес для переписки: 129090, ...

Improvements to electronic delay lines

Improvements to crossed electric and magnetic field tubes of coaxial structure

Traveling wave deceleration method and device

RADIO WAVES GENERATOR FOR MICROWAVE

Electronic guns for the production of tube bundles and applications to tubes with beam propagation perpendicular to crossed electric and magnetic fields

Electronic device

Traveling wave amplifier lamp with magnetic field

Traveling wave tubes

Traveling wave amplifier tubes

Improvements in the production of wave propagation tubes, magnetron type, of circular structure

Transverse wave amplifier

Crossed field tube

1,039,833. Magnetron amplifiers. S-F-D. LABORATORIES Inc. Aug. 6, 1963 [Aug. 7, 1962], No. 31044/63. Addition to 968,904. Heading H1D. In a crossed-field microwave amplifier or oscillator tube with a re-entrant electron stream and a non-reentrant slow wave circuit and with a secondary electron emissive cathode from. which emission is self-sustained by back bombardment, an arcuateshaped control electrode 69 is provided within a recess in the cathode 66 by means of which, on the application of a positive pulse to the control electrode, active operation of the tube may be terminated. In the tube shown with a slow-wave structure comprising half-wave resonant rods 55 alternately capacitively coupled by slotted bands 56, the control electrode 69 is located opposite the drift segment 59 between the input and output coaxial lines 60, 61 and is connected by a crosspin 70 to a central support rod 71. The invention is applicable to tubes in which the cathode surrounds the slow-wave anode structure.

Magnetron oscillators

Delay lines for crossed field tubes

Improvements to electronic tubes

Electron optic device for a beam propagating perpendicularly to crossed magnetic and electric fields

Improvements to traveling wave tubes with crossed electric and magnetic fields

Electron discharge signal delay devices

738,404. Magnets. WESTERN ELECTRIC CO., Inc. Dec. 19, 1952 [Dec. 29, 1951], No. 32231/52. Class 35. [Also in Groups XL (a) and XL (c)] An annular permanent magnet 60, Fig. 4, has magnetic end-plates 61, 62 and encloses two sets of concentric discs 63, 64 to reduce transverse magnetic field components.

High power electron discharge device

942,685. Magnetrons. S.F.D. LABORATORIES Inc. March 20, 1961 [March 21, 1960], No. 10141/61. Heading H1D. An electron discharge device using crossed electric and magnetic fields for wave-electron stream interaction comprises an anode structure 21, Figs. 2, 3A, a cathode structure 23 spaced from the anode structure to form a wave-electron interaction space therebetween, and means for producing an electron stream in the interaction region, the anode being adapted to propagate an electromagnetic wave travelling in a direction substantially orthogonal to the mean direction of the electron stream, whereby energy is transferred from the electron stream to the travelling electromagnetic wave propagated by the anode over an interaction region longer than a wavelength of the dominant mode propagated by the anode structure. In one embodiment of the invention, Fig. 2, a coaxial, inside-out magnetron comprises a thick-walled hollow cylindrical anode 21 which forms a circular electric mode waveguide 22, e.g. a TE 01 mode waveguide. A hollow cylindrical cathode 23, a cold cathode of beryllium copper, surrounds and is spaced from the anode 21, the emission from which is initiated by the R.F. wave in the device. The anode structure 21 is ¥# thick, where # is the cut-off wavelength of the waveguide 22 and is provided with a plurality of resonator slots 25, Fig. 3A, which subdivide the anode into a plurality of anode members 26, each provided with a slot resonator 27 #/ 4 deep extending practically the whole length thereof. In operation, a # mode interaction takes place and a phase reversal between adjacent slots is maintained by having adjacent slots differing in length by an odd multiple of #/4. In a further embodiment, Fig. 4, the #/ 4 slot resonators 27 of Fig. 3A are replaced by <SP>5</SP>#/4 slot resonators 38 which are foreshortened by loading the inductive and capacitive portions so that it occupies the same length as the <SP>3</SP>#/4 slot resonator ...

New noise generator

High frequency energy interchange device

Improvements to electron guns

Power management system for dual travelling wave tube amplifier

Power management system, notably for a dual travelling wave tube amplifier comprising at least: €¢ two travelling wave tubes (10, 24), each comprising one Anode Zero (13) electrode, €¢ an electronic power conditioner, the power management system being implemented in said electronic power conditioner and characterized in that it comprises power management means (22) associated with each travelling wave tube (10, 24), setting the Anode Zero (13) electrode voltage to a determined minimum value when a sleep mode is activated, the power management means being maintained at the lowest value as long as said sleep mode is activated. The sleep mode can advantageously be combined with an RF-Mute mode.

Improvements in or relating to electron guns

1,016,810. Travelling wave tubes. M-O VALVE CO. Ltd., and G. SMALL. Dec. 7, 1964 [Dec. 31, 1963], No. 51467/63. Heading H1D. A crossed-field electron gun, e.g. for a backward wave M-type travelling wave tube, has an electron emitting surface 21 and a plate electrode surface 22, the distance between the surfaces increasing in the direction of the electron steam. The plate electrode may be planar or may curve with a steeper gradient in the direction of the electron flow. Specific dimensions are given.

PROGRESSIVE WAVE TUBES WITH INTEGRATED ION TRAP FEED.

L'invention propose un système de tube à ondes progressives (100) et un procédé pour protéger une cathode (128) d'un système de tube à ondes progressives. Le système comprend un canon à électrons (104) et une alimentation (156) qui applique un potentiel électrique entre une cathode (128) et une anode (132) du canon à électrons (104) pour générer un faisceau d'électrons (152). Le faisceau d'électrons traverse un passage (136) d'une structure de retard (108). Une électrode de collecteur (112) collecte des électrons provenant du faisceau d'électrons (152), en générant un courant qui circule à travers un circuit d'alimentation de piège à ions (144) pour générer une tension continue qui est appliquée à l'anode (132) afin de repousser des ions positifs qui sont générés. The invention provides a traveling wave tube system (100) and a method for protecting a cathode (128) from a traveling wave tube system. The system includes an electron gun (104) and a power supply (156) that applies an electrical potential between a cathode (128) and an anode (132) of the electron gun (104) to generate an electron beam (152) . The electron beam passes through a passage (136) of a delay structure (108). A collector electrode (112) collects electrons from the electron beam (152), generating a current that flows through an ion trap supply circuit (144) to generate a DC voltage that is applied to the electron beam. anode (132) to repel positive ions that are generated.

Broadband magnetron

Traveling wave amplifying tube with a magnetic field

Ultra short wave generator having a wide band of oscillation frequencies

Pre-interaction cycloidal beam deflection in crossed-field tube

Electronic tube with crossed electric and magnetic fields

High gain crossed field amplifier

PATENT APPLICATION of George K. Farney for HIGH GAIN CROSSED FIELD AMPLIFIER ABSTRACT The allowable gain of a crossed-field amplifier tube is increased by tapering the slow-wave interaction circuit to a smaller spatial period in the direction of circuit power flow. Concurrent variation of the electron beam drift velocity by tapering the dc electric or magnetic field further improves the gain and efficiency. rbn2D40776 - 1 -

Method for interrupting the operation of an electronic cross-field device

Wideband amplifier for very high frequencies

Transverse wave amplifier

Crossed field transverse wave amplifier comprising transmission line

Traveling wave amplifier lamp with magnetic field

Patent FR2336788B1

Electron discharge device

Delay device

Crossed field device

A crossed field device, such as a magnetron or crossed field amplifier, that includes a cathode, an anode, one or more magnetic elements, and one or more extraction elements. In one embodiment, the crossed field device includes an annular cathode and anode that are axially spaced from one another such that the device produces an axial electric (E) field and a radial magnetic (B) field. In another embodiment, the crossed field device includes an oval-shaped cathode and anode that are radially spaced from one another such that the device produces a radial electric (E) field and an axial magnetic (B) field. The crossed field device may produce electromagnetic (EM) emissions having a frequency ranging from megahertz (MHz) to terahertz (THz), and may be used in one of a number of different applications.

Electron tubes for amplifying ultrashort wave oscillations

Improvements in and relating to travelling-wave tubes

844,914. Travelling-wave tubes. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Dec. 24, 1958 [Dec. 31, 1957], No. 41674/58. Class 39(1). A travelling-wave tube with crossed electric and magnetic fields in which the magnetic lines of force are circles about an axial conductor 1 has a number of sole electrodes 23 surrounding the axial conductor and a delay line 8 which is periodic both in the direction of the axial conductor and in the direction of the magnetic lines of force in order to suppress parasitic modes of operation. As shown there are three sole electrodes 23, 24 and 25 at increasing negative potentials. The cathode 3 is annular and the electrons are concentrated into a tubular beam by the anode 22 and the magnetic field. The axial conductor 1 is hollow for the circulation of cooling fluid and thermal expansion is allowed for by the bellows 11. The delay line is composed of alternate washers 36, Fig. 4, and 40, Fig. 6, held tightly together by means of bolts 44. Preferably the bolts 44 are composed of a material having a coefficient of expansion which is less than that of the washers so that the tightening is increased when the assembly is heated for the purpose of brazing the washers together. Coupling connections from the end washers to the inner conductors 45 of the input and output -lines 9, 10 are as shown in Fig. 8. In modifications, the axial conductor 1 may be integral with the envelope 7 and auxiliary cathode may be provided between the sole electrodes 23, 24 and 24, 25 to augment the electron flow. The cathode may be pulsed and A.C. passed through the axial conductor, the direction of current flow being in synchronism with the blocking or unblocking of the cathode. Specification 705,783 is referred to.

Magnetron amplifiers

Electron discharge device wherein electromagnetic waves along the slow wave structure have components transverse to the electron beam and deflect out-of-phase electrons from the beam

Travelling wave tubes with crossed electric and magnetic fields

Traveling wave tubes especially for amplifying ultra-high frequency vibrations

Wave propagating electron discharge device

Magnetron-traveling wave tube amplifier

Very short wave electron tube

Traveling wave device

Linear traveling wave tubes for amplification or vibration excitation

Traveling field tubes with emission cathode and delay line

Improvements to traveling wave tubes with crossed electric and magnetic fields, modulated by pulses injected into the heating circuit

Electronic discharge device

Progressing wave tubes improvements

Tube intended for the transmission of ultra-short waves and more particularly for their amplification

Crossed field device

A crossed field device (10, 110, 210, 310, 410), such as a magnetron or crossed field amplifier, that includes a cathode (12, 112, 212, 312, 412), an anode (14, 114, 214, 314, 414), one or more magnetic elements (16, 116, 316), and one or more extraction elements (18, 118, 218, 318, 418). In one embodiment, the crossed field device (10) includes an annular cathode (12) and anode (14) that are axially spaced from one another such that the device produces an axial electric (E) field and a radial magnetic (B) field. In another embodiment, the crossed field device (110) includes an oval-shaped cathode (112) and anode (114) that are radially spaced from one another such that the device produces a radial electric (E) field and an axial magnetic (B) field. The crossed field device may produce electromagnetic (EM) emissions having a frequency ranging from megahertz (MHz) to terahertz (THz), and may be used in one of a number of different applications.

Patent JPS4841925B1

Tube oscillateur à ondes progressives de structure circulaire

High gain miniature crossed-field amplifier

There is provided a miniature high gain forward wave crossed-field amplifier wherein the anode slow wave structure (32) includes double helix coupled vanes (19) having a predetermined pitch such that the distance between the plane of symmetry of each vane (19) is substantially narrow as compared with the thickness of each vane (19). The vanes (19) also having a predetermined length and height, the height being greater than one half of the length. The wires of the double helical coils (28 and 30) has a cross-sectional thickness which is at least one order of magnitude less than the plane of symmetry diameter of each turn of the coils (28 and 30). The distance between the outer diameter of each coil (28 and 30) along the transverse face of each vane (19) is quite large. The pitch ratio of the vanes (19) is less than one half of the thickness thereof. Samarium cobalt magnets (10) are used having annular end pieces which form the walls of the vacuum chamber. A high gain of 18 to 22dB in a volume of approximately 50 cubic inches and a weight of less than 10 pounds is achieved.

Self-modulating,partially reentrant crossed field amplifier

A COLD CATHODE DISTRIBUTED EMISSION REENTRANT TYPE CROSSED FIELD AMPLIFIER IS PROVIDED WHICH POSSESSES ELECTRICAL EFFICIENCES APPROACHING THAT AVAILABLE IN THE REENTRANT TYPE CROSSED FIELD AMPLIFIERS OF THE PRIOR AT BUT WHICH FEATURES THE SIMPLICITY OF THE NON-REENTRANT TYPE CROSSED FIELD AMPLIFIER. A CIRCULAR CONFIGURATION IS USED FOR THE TUBE? ONE IN WHICH THE BEGINNING AND END OF THE INTERACTION REGION IS CONNECTED WITH THE DRIFT SPACE REGION, SO AS TO FORM A COMPLETE ANNULAR PASSAGE ABOUT THE SOLE AND CATHODE. THE MAGNETIC STRUCTURE PRODUCES A MAGNETIC FIELD AT THE PROGRAMMED LEVEL, WHICH MAY BE CONSTANT, IN THE INTERACTION REGION AND IN ADDITION PROVIDES A VARIATION IN THE DRIFT SPACE. AT THE ENTRANCE TO THE DRIFT SPACE AND MAGNETIC INTENSITY DECREASES AS A FUNCTION OF POSITION ALONG THE LENGTH OF THE DRIFT SPACE FROM THE PROGRAMMED LEVEL, GRADUALLY, OVER A PREDETERMINED LENGTH OF THE DRIFT SPACE TO A SECOND LOWER PREDETERMINED INTENSITY. ALONG THE REMAINING LENGTH OF THE DRIFT SPACE THE FIELD INTENSITY INCREASES IN LEVEL UNTIL AT THE END OF THE DRIFT SPACE, COINCIDENT WITH THE BEGINNING OF THE INTER- ACTION REGION, THE MAGNETIC FIELD INTENSITY IS AGAIN AT THE PROGRAMMED LEVEL. THE TAPERING OF THE MAGNETIC FIELD IN THE DRIFT SPACE REGION IS DESIGNED SO THAT IT DIVERTS SIGNIFICANT AMOUNTS OF THOSE ELECTRONS THAT PASS THROUGH THE INTERACTION REGION AND ENTER THE DRIFT SPACE REGION. HENCE, THE REMAINING ELECTRONS WHICH REENTER THE INTERACTION REGION ARE INSUFFICIENT IN QUANTITY OR ENERGY TO CAUSE SELF-OSCILLATION AFTER THE RF-DRIVE SIGNAL HAS BEEN REMOVED.

Wanderfeldroehre, insbesondere zur Verstaerkung ultrahochfrequenter Schwingungen

Verzögerungsleitung für eine Lauffeldröhre mit Anschluß einer zweiten Übertragungsleitung. Ausscheidung aus: 1491448

一种耦合输出的低磁同轴超辐射相对论返波管

本发明提出了一种耦合输出的低磁同轴超辐射相对论返波管，属于高功率微波技术领域。包括若干个轴向依次连接的高频系统；高频系统包括阳极壳体、环形阴极、管头、漂移段、同轴型非均匀慢波结构、收集极、耦合输出结构；通过耦合输出结构，可以使微波从耦合间隙耦合至圆波导输出腔输出，耦合输出结构中的反射结构可以避免微波进入二极管区域，对电子束的产生及传输造成影响。此外，通过控制圆波导输出腔的半径，可以使得输出模式比较纯净；本发明在外加较低引导磁场强度的情况下，使用耦合输出的方式，可以减小传输损耗，实现高功率、高转换效率的微波输出，有利于高功率微波系统的小型化以及多管的空间功率合成。