Apparatus and method for measuring the phase and magnitude of mi

Telecommunications – Transmitter and receiver at separate stations – Having measuring – testing – or monitoring of system or part

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324601, H04B 1700

Patent

active

055242812

ABSTRACT:
A measurement system is provided which comprises: source circuit for receiving feedback signals and for providing respective signals at respective discrete frequencies in a prescribed microwave frequency range, wherein the respective provided signals at respective discrete frequencies are substantially phase locked to at least one downconverted signal in response to the feedback signals; downconverting circuit for linearly downconverting the respective provided signals and for providing the at least one respective downconverted signal; and phase detector circuit for receiving the at least one respective downconverted signal and for providing the feedback signals.

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patent: 4661995 (1987-04-01), Kashiwagi
patent: 4742561 (1988-05-01), Tipton
patent: 4839578 (1989-06-01), Roos
patent: 4982164 (1991-01-01), Schiek et al.
patent: 5233418 (1993-08-01), Gumm et al.

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