Start Date
4-1982 8:00 AM
Description
TRW is developing two types of 20 GHz solid state power amplifiers:
1) an extremely complex 30 GHz receive antenna with both fixed and scanning beams, and
2) the electrical power conditioners (EPC) for a dual mode 7.5 and 75 watt 20 GHz travelling wave tube (TWT).
The solid state amplifiers are a GaAs FET unit with 7.5 watt output and an impatt diode amplifier with 20 watts output. The impatt unit uses a 12 diode combiner with a combining efficiency of 80%. The current breadboard unit provides 17.18 watts output in the injection locked mode.
The antenna uses an 80.5 inch carbon filament reinforced plastic offset parabola to produce 0.3° beams. The feed is polarization diplexed. Both polarizations are utilized to provide fixed and scanning beam with the feed set interspersed to solve the feed crowding problem. The feed assembly and waveguide structure are being integrated. The reflector tooling is nearly complete.
30/20 GHz Technology at TRW
TRW is developing two types of 20 GHz solid state power amplifiers:
1) an extremely complex 30 GHz receive antenna with both fixed and scanning beams, and
2) the electrical power conditioners (EPC) for a dual mode 7.5 and 75 watt 20 GHz travelling wave tube (TWT).
The solid state amplifiers are a GaAs FET unit with 7.5 watt output and an impatt diode amplifier with 20 watts output. The impatt unit uses a 12 diode combiner with a combining efficiency of 80%. The current breadboard unit provides 17.18 watts output in the injection locked mode.
The antenna uses an 80.5 inch carbon filament reinforced plastic offset parabola to produce 0.3° beams. The feed is polarization diplexed. Both polarizations are utilized to provide fixed and scanning beam with the feed set interspersed to solve the feed crowding problem. The feed assembly and waveguide structure are being integrated. The reflector tooling is nearly complete.
Comments
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