Method and apparatus for adjusting a resonant frequency of a tra

Details Method and apparatus for adjusting a resonant frequency of a tra Method and apparatus for adjusting a resonant frequency of a tra

1994-03-30

1995-05-30

Ham, Seungsook

Wave transmission lines and networks

Resonators

With tuning

333219, 333223, H01P 708, H01P 704

Patent

active

054205549

ABSTRACT:
A transmission line resonator assembly (100) employs a method and apparatus for adjusting its resonant frequency. The transmission line resonator assembly (100) comprises a resonator portion (101) and an electrically conductive member (102). The resonator portion (101) is operable at the resonant frequency and includes a transmission line (103) that is disposed on a dielectric material (104). A first portion (106) of the transmission line (103) is electrically coupled to a signal common (109) by a first coupling impedance. The electrically conductive member (102) includes a first deflectable surface (113) lying substantially along a first plane (201) and is coupled to the resonator portion (101) and the signal common (109), such that the first deflectable surface (113) is positioned substantially adjacent to the transmission line (103). By deflecting at least a portion of the first deflectable surface (113) with respect to the first plane (201), the first coupling impedance is altered, thereby adjusting the resonant frequency.

REFERENCES:
patent: 4583064 (1986-04-01), Makimoto et al.
patent: 5032807 (1991-07-01), Petrovic
patent: 5218330 (1993-06-01), Omiya et al.
patent: 5304968 (1994-04-01), Ohtonen et al.

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