DEVICE FOR SIMULATING DOPPLER FREQUENCY SHIFT OF REFLECTED SIGNAL

摘要

FIELD: radio engineering, communication.SUBSTANCE: device for simulating Doppler frequency shift of a reflected signal includes an antenna and a path having a multivibrator-controlled short-circuiting PIN diode located at a distance of a quarter wavelength from the end of the path. The antenna and the path are divided in half and the second half includes an additional short-circuiting PIN diode controlled by the same multivibrator, said PIN diode located at distance of a quarter wavelength from the end and offset on the length of the path by one eighth of the wavelength relative to the first PIN diode.EFFECT: suppressing the mirror Doppler component.5 dwg