DEVICE FOR FREQUENCY- SELECTIVE CONVERSION OF MICROWAVE POWER Russian patent published in 1996 - IPC

FIELD: microwave instruments. SUBSTANCE: device has modulating gyro-magnetic converter 1, which microwave output is connected to attenuator 2 and microwave detector 3, which are connected in series. In addition device has narrow-band amplifying unit 4, which output is connected to high- frequency input of gyro-magnetic converter 1. Input of unit 4 is connected to output of microwave detector 3. Investigated microwave signal which frequency belongs to slope of resonant curve of converter 1 is modulated by converter, attenuated by attenuator 2, detected by microwave detector 3. One harmonic is detected and amplified by unit 4 is sent to input of converter 1. So, it modulates resonant frequency of its gyro-magnetic resonator. EFFECT: increased speed of permission test of microwave power. 2 cl, 1 dwg