TRANSDUCER RADIO-FREQUENCY SECTION FOR SMALL-SIZED RADAR Russian patent published in 1997 - IPC

FIELD: devices for detection of moving objects, mainly, within collision avoidance system. SUBSTANCE: the device uses U-arranged transmitting and receiving aerials, generator of continuous frequency-modulated radiation, mixer, non-absorbing waveguide attenuator with an unlimiting waveguide, bandpass line secured on the unlimiting waveguide; the generator, transmitting and receiving aerials are secured on the wall of the attenuator rectangular waveguide. Use is made of horn aerials with shaped dielectric inserts in the mouth of the horns, the longer axles of the mouths of the horns are parallel and installed at an angle of 45 deg. to the longitudinal axis of the bandpass line. The longitudinal axes of the aerials may be nonparallel to the horizontal plane. EFFECT: enhanced reliability. 5 cl, 1 dwg