Transmission line filter having a varactor for tuning a transmis

Details Transmission line filter having a varactor for tuning a transmis Transmission line filter having a varactor for tuning a transmis

1991-07-05

1993-08-31

Mottola, Steven

Wave transmission lines and networks

Resonators

333205, H01P 708, H01P 1203

Patent

active

052412911

ABSTRACT:
A transmission line structure (100) is provided which includes a resonator (110) having open ends (118) disposed on a substrate (130). The first resonator (110) includes a control voltage terminal (116) which is positioned at a point along the length where a zero potential exists at resonant frequency. Transmission zero frequency is tuned by means of a varactor (150) which is coupled to the control voltage terminal and receives a control voltage for controlling the zero frequency.

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patent: 5021757 (1991-06-01), Kobayashi et al.
patent: 5066933 (1991-11-01), Komeda

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