Signal Injection Circuit for Radar Gain and Noise Tests.
DEPARTMENT OF THE AIR FORCE WASHINGTON DC
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A circuit injects the signal from a stable localized oscillator past a pin diode switch through a first circulator to a waveguide, a second circuit injects a noise signal from a generating diode through a second circulator to the first circulator to the waveguide, a switching system causes the diodes to function in a coordinated manner. Author
- Active and Passive Radar Detection and Equipment