Dielectric filter and method of regulating its frequency bandwid

Details Dielectric filter and method of regulating its frequency bandwid Dielectric filter and method of regulating its frequency bandwid

1996-02-01

1999-09-07

Lee, Benny

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333206, H01P 1201

Patent

active

059493089

ABSTRACT:
There are provided a dielectric filter that shows a large effective bandwidth and a method of regulating the frequency bandwidth of a dielectric filter in order to achieve a large effective bandwidth, in which the dielectric filter comprises a dielectric ceramic block provided with three or more resonators arranged in parallel with each other and formed by respective resonant conductors, capacitive electrodes are provided at a position close to an electrically open-circuit end surface on one of four lateral surfaces of the dielectric ceramic block to respectively lie over the adjacently disposed resonant conductors, and a shield electrode provided on the lateral surface is partly removed at a position bordering the open-circuit end surface where the capacitive electrodes are located in order to form an insulation gap having a predetermined width.

REFERENCES:
patent: 4937542 (1990-06-01), Nakatuko
patent: 5146193 (1992-09-01), Sokola
patent: 5721520 (1998-02-01), McVeety et al.

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