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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 8. Отображено 7.
19-04-2018 дата публикации

INTEGRATED SINGLE-PIECE ANTENNA FEED AND CIRCULAR POLARIZER

Номер: US20180108996A1
Автор: Cathey Clinton, Hollenbeck Michael C., Opra Janos, Smith Robert
Принадлежит: Optisys, LLC

Embodiments of the invention include an integrated single-piece antenna feed and a turnstile circular polarizer suitable for use in a satellite communications system. One embodiment of the integrated single-piece antenna includes a circular waveguide input, a turnstile, a coaxial feed horn, subreflector and subreflector support. One embodiment of the turnstile features four branches of wrapped-single-ridged waveguide. Another embodiment is a turnstile circular polarizer. 1. An integrated single-piece antenna feed having an axis with proximal and distal ends for propagating an electromagnetic wave , comprising:a circular waveguide input having a circular opening at the proximal end and extending coaxially toward the distal end;a circular waveguide to wrapped-single-ridged waveguide transition coupled to the circular waveguide input extending further along the axis toward the distal end and flaring radially outward relative to the axis into four waveguide branches;a wrapped-single-ridged waveguide to coaxial waveguide transition coupled to the circular waveguide to wrapped-single-ridged waveguide transition wherein each of the four branches transitions into a single coaxial waveguide;a coaxial feed horn coupled to the single coaxial waveguide of the wrapped-single-ridged to coaxial waveguide transition, the single coaxial waveguide disposed between a cylindrical subreflector support and an outer feed horn conductor, the cylindrical subreflector support extending coaxially from the feed horn still further toward the distal end; anda subreflector located at the distal end and supported by the cylindrical subreflector support.2. The integrated single-piece antenna feed according to claim 1 , wherein the circular waveguide input further comprises a flange disposed around the circular opening at the proximal end claim 1 , the flange further comprising a plurality of mounting holes suitable for mounting the integrated antenna feed to a main reflector of an antenna system.3. ...

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Номер записи: 1
09-05-2019 дата публикации

INTEGRATED WAVEGUIDE MONOPULSE COMPARATOR ASSEMBLY

Номер: US20190140338A1
Автор: Cathey Clinton, Hollenbeck Michael C., Opra Janos, Smith Robert
Принадлежит: Optisys, LLC

Embodiments of the invention include an integrated monopulse comparator assembly for use in tracking antenna applications such as an antenna feed or an antenna array. Embodiments of the monopulse comparator assembly may include four rectangular waveguide antenna inputs, four magic tees, rectangular waveguide connections, and four rectangular waveguide monopulse outputs. An embodiment of a 4×4 antenna array including an embodiment of an integrated monopulse comparator assembly is also disclosed. 1. A waveguide magic tee enclosing an internal chamber , comprising:a top;a back;a front;a first side;a second side;a plane of symmetry dividing the first side from the second side;a first side input branch air volume extending from the plane of symmetry to the first side and having a rectangular first side port;a second side input branch air volume extending from the plane of symmetry to the second side and having a rectangular second side port;an output combined branch air volume extending from the first and second side input branches to the front and having a rectangular combined port;an expansion prism air volume extending from the first and second side input branches toward the top; andan output difference branch air volume extending from the expansion prism air volume to the top and having a rectangular difference port.2. The waveguide magic tee according to claim 1 , further comprising a base expansion prism air volume extending from the bottom and the back and overlapping the first and second side input branch air volumes.3. The waveguide magic tee according to claim 1 , wherein the internal chamber encloses an internal matching structure.4. An integrated waveguide monopulse comparator assembly claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'first, second, third and fourth magic tees, each of the four magic tees according to ;'}the rectangular difference port of the first magic tee coupled to the first side port of the fourth magic tee;the ...

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Номер записи: 2
21-05-2020 дата публикации

WAVEGUIDE SWITCH ROTOR WITH IMPROVED ISOLATION

Номер: US20200161730A1
Автор: Hollenbeck Michael C., Smith Robert
Принадлежит: Optisys, LLC

Embodiments of the invention include waveguide switch rotors, stators, waveguide switch housings and meander clamping mechanisms. In particular, the waveguide switch rotor design employs isolation posts surrounding waveguide ports disposed on the external face of the rotor to achieve an artificial magnetic boundary condition to achieve high isolation with improved gap from rotor to stator. 1. A waveguide switch rotor , comprising:a cylindrical rotor face extending between a rotor top and a rotor bottom with an axis of rotation passing through the rotor top and the rotor bottom;a first pair of waveguide ports disposed onto the cylindrical rotor face defining a first waveguide path passing into and out of the rotor face; anda lattice of evenly-spaced isolation posts extending from the cylindrical rotor face and surrounding the pair of waveguide ports.2. The waveguide switch rotor according to claim 1 , further comprising a second pair of waveguide ports disposed onto the cylindrical rotor face defining a second waveguide path passing into and out of the rotor face claim 1 , wherein the second waveguide path does not intersect the first waveguide path.3. The waveguide switch rotor according to claim 1 , wherein the first waveguide path comprises at least one of the following: waveguide claim 1 , resonant cavity claim 1 , filter claim 1 , diplexer claim 1 , hybrid coupler claim 1 , limiter claim 1 , circulator claim 1 , combiner and divider.4. The waveguide switch rotor according to claim 1 , wherein the each of the isolation posts has a height claim 1 , h claim 1 , a cross-section of a square and four exposed vertices surrounding a top face.5. The waveguide switch rotor according to claim 4 , wherein the lattice of evenly-spaced isolation posts are distributed in longitudinal rows running parallel to the axis of rotation claim 4 , adjacent posts in each of the longitudinal rows spaced apart longitudinally by a distance claim 4 , 2x claim 4 , measured from center to ...

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Номер записи: 3
04-07-2019 дата публикации

Dual-band integrated printed antenna feed

Номер: US20190207321A1
Автор: Michael C. HOLLENBECK, Robert Smith
Принадлежит: Optisys LLC

The invention includes various embodiments of integrated dual-band printed antenna feeds having various combinations of electrical and structural components for use with a prime focus, ring focus, or Cassegrain dish antennas. All of the embodiments of dual-band antenna feeds disclosed herein are configured to be fabricated as a single structure using metal additive manufacturing techniques.

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Номер записи: 4
11-10-2018 дата публикации

INTEGRATED SINGLE-PIECE ANTENNA FEED AND COMPONENTS

Номер: US20180294573A1
Автор: Cathey Clinton, Hollenbeck Michael C., Opra Janos, Smith Robert
Принадлежит: Optisys, LLC

Embodiments of the invention include an integrated single-piece antenna feed and a turnstile circular polarizer suitable for use in a satellite communications system. One embodiment of the integrated single-piece antenna includes a circular waveguide input, a turnstile, a coaxial feed horn, subreflector and subreflector support. Alternative embodiments utilize symmetrically oriented struts with or without a coaxial subreflector support to physically support a subreflector. 1. An integrated single-piece antenna feed having an axis with proximal and distal ends for propagating an electromagnetic wave , comprising:four ridged rectangular waveguide arms for propagating the electromagnetic wave from the proximal end and extending toward the distal end;a coaxial turnstile waveguide including an outside surface cylindrical conductor and an inner conductor, the inner conductor comprising a cylindrical subreflector support;a ridged rectangular waveguide to coaxial turnstile waveguide transition coupled to the four ridged rectangular waveguide arms wherein each of the four ridged rectangular waveguide arms transitions into the coaxial turnstile waveguide;a coaxial feed horn coupled to the coaxial turnstile waveguide; anda subreflector located at the distal end having an outer rim and supported axially by the cylindrical subreflector support.2. The integrated single-piece antenna feed according to claim 1 , further comprising:a circular waveguide input having a circular opening at the proximal end and extending coaxially toward the distal end; anda circular waveguide to ridged waveguide transition coupled to the circular waveguide input extending further along the axis toward the distal end and flaring radially outward relative to the axis into the four ridged rectangular waveguide arms.3. The integrated single-piece antenna feed according to claim 1 , wherein the coaxial feed horn further comprises a plurality of outer circumferential corrugations.4. The integrated single- ...

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Номер записи: 5
28-05-2020 дата публикации

Waveguide switch rotor with improved isolation

Номер: WO2020106651A1
Автор: Michael C. HOLLENBECK, Robert Smith
Принадлежит: Optisys, LLC

Embodiments of the invention include waveguide switch rotors, stators, waveguide switch housings and meander clamping mechanisms. In particular, the waveguide switch rotor design employs isolation posts surrounding waveguide ports disposed on the external face of the rotor to achieve an artificial magnetic boundary condition to achieve high isolation with improved gap from rotor to stator.

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Номер записи: 6
01-05-2018 дата публикации

Integrated single-piece antenna feed and circular polarizer

Номер: US09960495B1
Автор: Clinton Cathey, Janos Opra, Michael C. HOLLENBECK, Robert Smith
Принадлежит: Optisys LLC

Embodiments of the invention include an integrated single-piece antenna feed and a turnstile circular polarizer suitable for use in a satellite communications system. One embodiment of the integrated single-piece antenna includes a circular waveguide input, a turnstile, a coaxial feed horn, subreflector and subreflector support. One embodiment of the turnstile features four branches of wrapped-single-ridged waveguide. Another embodiment is a turnstile circular polarizer.

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Номер записи: 7