Dielectric filter with elevated inner regions adjacent resonator

Details Dielectric filter with elevated inner regions adjacent resonator Dielectric filter with elevated inner regions adjacent resonator

1997-10-17

1999-08-17

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333207, H01P 1205

Patent

active

059399597

ABSTRACT:
A dielectric filter in which an open-circuiting end surface of a dielectric ceramic block is provided with a conductor pattern for each of the inner resonators and an additional conductor for each of the outermost resonators, the conductor patterns are intended to capacitively coupling the resonators with each other, and the additional conductors are intended to increase the effective resonant length of the outermost resonators, thereby the resonant frequencies of the resonators can be made substantially agree with each other.

REFERENCES:
patent: 4673902 (1987-06-01), Takeda et al.
patent: 4733208 (1988-03-01), Ishikawa et al.
patent: 4761624 (1988-08-01), Igarashi et al.
patent: 4965537 (1990-10-01), Kommrusch
patent: 4987393 (1991-01-01), Yorita et al.
patent: 5150089 (1992-09-01), Komazaki et al.
patent: 5721520 (1998-02-01), McVeety et al.

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