RADIOMETRIC REFLECTION COEFFICIENT METER Russian patent published in 2012 - IPC G01R29/08 

FIELD: physics.

SUBSTANCE: radiometric meter, having a receiver, an antenna, a first directional coupler, a current source and a noise generator connected in series, has, between the output of the first directional coupler and the input of the receiver, a second directional coupler, a microwave switch, the input of which is connected to the output of the noise generator, the first and second outputs are respectively connected to second inputs of the first and second directional couplers, and the third output is connected to a matched load; also includes a synchronous low-pass filter, a high-pass filter, a comparator and a control unit, all connected in series to the output of the receiver, wherein the second input of the comparator is connected to the common bus of a radiometer, the first output of the control unit is connected to the control input of the synchronous low-pass filter and merged with the control input of the microwave switch, and its second output is the output bus of the radiometer.

EFFECT: simple device and algorithm of processing signals without converting their form and high accuracy of measurements.

6 dwg