Variable matching circuit

Details Variable matching circuit Variable matching circuit

2005-04-19

2009-12-15

Jones, Stephen E (Department: 2817)

Wave transmission lines and networks

Coupling networks

With impedance matching

C333S017300

Reexamination Certificate

active

07633355

ABSTRACT:
A variable matching circuit includes a variable capacitance circuit formed of a capacitor coupled to varactor diode and provided between terminals, and a resonator-type circuit includes a plurality of inductors and a variable capacitance circuit formed of a capacitor and a varactor diode. The inductors and the variable capacitance circuit are coupled in parallel together. The resonator-type circuit is connected in shunt with the terminal. The foregoing structure forms an L-type matching circuit. The bias of the varactor diodes can be thus varied, and plural values of the inductance of the resonator-type circuit can be switched over with a FET. The variable matching circuit can electrically control an impedance conversion available for wider ranges of frequency bandwidths.

REFERENCES:
patent: 60-010907 (1985-01-01), None
patent: 02-220509 (1990-09-01), None
patent: 10-163772 (1998-06-01), None
patent: 10-242849 (1998-09-01), None
patent: 11-088080 (1999-03-01), None
patent: 11-122013 (1999-04-01), None
patent: 2001-186042 (2001-07-01), None
patent: 2001-196854 (2001-07-01), None
patent: 2002-009573 (2002-01-01), None
patent: 2002-208871 (2002-07-01), None
International Search Report for Application No. PCT/JP2005/007446, dated Aug. 2, 2005.

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