Method of down converting high-frequency signals

Details Method of down converting high-frequency signals Method of down converting high-frequency signals

2009-11-02

2011-12-27

Tarcza, Thomas (Department: 3662)

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

Return signal controls radar system

Receiver

C342S089000, C342S159000, C342S175000

Reexamination Certificate

active

08085185

ABSTRACT:
A method of down-converting couples a first high-frequency signal to a first detector and to a second detector. An antenna receives a signal and the received signal is provided to at least the first detector. The high-frequency signal is detected to produce a first detected signal including a first detected high-frequency signal and a demodulated signal. The high-frequency signal is concurrently detected to produce a second detected high-frequency signal. The second detected signal is subtracted from the first detected signal so as to cancel amplitude-modulated noise on a detected signal output.

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