Microwave responder

Details Microwave responder Microwave responder

1990-05-21

1992-06-02

Sotomayor, John B.

Communications: directive radio wave systems and devices (e.g.,

Radar transponder system

Radar transponder only

342175, G01S 1380

Patent

active

051190990

ABSTRACT:
A microwave responder resonates or does not resonate with a microwave transmitted from a radio transmitter, and radiates the resonated microwave as a response signal wave. Two microstrip lines are linearly arranged to be separated from each other at a predetermined interval. A diode which is switched between ON and OFF states in response to the response signal is interposed between two end portions of the microstrip lines separated by the predetermined interval, and a distance, between distal ends of the two linearly arranged microstrip lines, which includes an impedance defined by the ON or OFF state of the diode is determined to be 1/2 a wavelength of the microwave.

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