Dielectric filter

Details Dielectric filter Dielectric filter

1990-06-08

1992-01-14

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333202, H01P 1202

Patent

active

050814354

ABSTRACT:
A dielectric filter having band elimination characteristics includes a resonance circuit with a coupling terminal. A proximal portion of the coupling terminal and a ground electric potential portion of the filter are opposed in the vertical direction, and a stray capacitance element and an external coupling element are provided in the vertical direction between them. Thus it is possible to effect the mounting operation by first stacking the stray capacitance element and the external coupling element on the ground portion and on top of those securing the proximal portion of the coupling terminal. This structure simplifies the soldering and assembling operation, and also improves mass production.

REFERENCES:
patent: 4276525 (1981-06-01), Nishikawa et al.
patent: 4567454 (1986-01-01), Saito
patent: 4800347 (1989-01-01), Yorita et al.
U.K. Search Report dated Oct. 8, 1990.

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