Automatic determination of the presence of a microwave signal an

Details Automatic determination of the presence of a microwave signal an Automatic determination of the presence of a microwave signal an

1994-06-27

1995-11-07

Eisenzopf, Reinhard J.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455323, 4552261, 455258, 324 7627, H04B 126, H04B 1700, G01R 2316

Patent

active

054654149

ABSTRACT:
A method and apparatus for detecting a high frequency signal by down converting the high frequency signal to an intermediate frequency signal by mixing the high frequency signal with the harmonics of a minimal number of local oscillator frequency signals chosen so that at least one harmonic of at least one of the local oscillator frequency signals will convert any high frequency signal in a given frequency range to an intermediate signal in another given frequency range, and applying the result to detectors sensitive to signals in the intermediate frequency range.

REFERENCES:
patent: 4581769 (1986-04-01), Grimsley et al
patent: 4817200 (1989-03-01), Tanbakuchi

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