DEVICE FOR MEASURING COMPLEX TRANSMISSION AND REFLECTION COEFFICIENTS OF MICROWAVE QUADRUPOLES Russian patent published in 2022 - IPC G01R27/28 G01R35/00 

FIELD: radio measurements.

SUBSTANCE: invention relates to the field of radio measurements. A device for measuring complex transmission and reflection coefficients of microwave quadripoles contains a microwave converter and a two-channel intermediate frequency receiver. The microwave converter includes the first directional coupler, the second directional coupler, the tested microwave quadripole, the third directional coupler, the fourth directional coupler, the first switch, the second switch, the first microwave mixer, the second microwave mixer, the third microwave mixer, the third switch, the fourth microwave mixer, the four-arm splitter of the second test microwave signals, the two-frequency synthesizer of coherent test microwave signals. In this case, the two-channel intermediate frequency receiver includes a fourth switch, an additional generator, an equal-arm divider, a fifth switch, a sixth switch, a seventh switch, an eighth switch, a ninth switch, a variable attenuator, a control unit, the first discretely adjustable operational amplifier.

EFFECT: increased accuracy of measurement of complex transmission and reflection coefficients of microwave quadripoles.

1 cl, 1 dwg