RF match detector circuit with dual directional coupler

Details RF match detector circuit with dual directional coupler RF match detector circuit with dual directional coupler

1995-07-07

1997-05-13

Gensler, Paul

Wave transmission lines and networks

Automatically controlled systems

Impedance matching

333 99PL, H03H 740

Patent

active

056296533

ABSTRACT:
A detector circuit for controlling an RF match circuit that receives an RF power signal from an RF source and delivers the RF power signal to a load. The RF match circuit includes a first variable reactance element which is controlled by a first control signal and a second variable reactance element is controlled by a second control signal. The detector circuit includes a dual directional coupler which generates a forward signal that is proportional to RF power delivered to the match circuit and a reflected signal that is proportional to RF power reflected back from the RF match circuit. The detector also includes a first branch circuit receiving the reflected signal and producing a first and second output signal therefrom and a second branch circuit receiving the forward signal and producing a first and second output signal therefrom. The detector further includes a first phase detector receiving the first output signals of the first and second branch circuits and generating a first phase detection output signal from which the first control signal is derived; and a second phase detector receiving the second output signals of the first and second branch circuits and generating a second phase detection output signal from which the second control signal is derived.

REFERENCES:
patent: 4015223 (1977-03-01), Cheze
patent: 4375051 (1983-02-01), Theall
patent: 4493112 (1985-01-01), Bruene
patent: 4621242 (1986-11-01), Theall, Jr. et al.
patent: 4951009 (1990-08-01), Collins
patent: 4977301 (1990-12-01), Maehara et al.
patent: 5065118 (1991-11-01), Collins et al.
patent: 5079507 (1992-01-01), Ishida et al.
patent: 5187454 (1993-02-01), Collins et al.
patent: 5187457 (1993-02-01), Chawla et al.

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