Solid state radar
Номер патента: GB1234764A
Опубликовано: 09-06-1971
Автор(ы): Peter Joseph Bulman
Принадлежит: National Research Development Corp UK
Опубликовано: 09-06-1971
Автор(ы): Peter Joseph Bulman
Принадлежит: National Research Development Corp UK
Реферат: 1,234,764. Pulse radar; Gunn-effect circuits. NATIONAL RESEARCH DEVELOPMENT CORP. 23 Aug., 1968 [25 Aug., 1967], No. 39181/67. Headings H3T and H4D. A radar includes a solid-state microwave source (e.g. a Gunn diode), a power supply and means 11 for applying the power supply to the microwave source for a short duration (e.g. 10 nanoseconds). Diode 1 is in a cavity 3 at the end of a waveguide 5, the cavity being turned by a short circuit 7. One terminal of the diode is connected via R.F. by-pass 9 to an avalanche transistor switch 11, one end of which is connected to an end of an open-circuited delay line 13 charged from a source 17. If T is the delay in line 13, the diode is extinguished after time 2T. A shorter pulse can be achieved by using a higher charge than that required to make the diode avalanche, Fig. 2 (not shown), i.e. the diode quenches itself in a shorter time than 2T. In a further embodiment a source (29, Fig. 3) feeds microwave power into the transmitter cavity (21) before the driving pulse applied, this improves pulse-to-pulse informity of amplitude in the output.
Solid-state radar device, solid-state radar control method, and non-transitory computer readable medium
Номер патента: US12123935B2. Автор: Ryosuke MORIGAKI,Masayuki SHIROMOTO. Владелец: Furuno Electric Co Ltd. Дата публикации: 2024-10-22.