Thin-film microwave filter

Details Thin-film microwave filter Thin-film microwave filter

1988-08-04

1989-11-14

Laroche, Eugene R.

Wave transmission lines and networks

Coupling networks

Frequency domain filters utilizing only lumped parameters

333168, 333184, 361328, H03H 700

Patent

active

048810509

ABSTRACT:
A thin-film, lumped element filter utilizing spiral inductors and capacitive pi networks is disclosed. The filter is fabricated from a planar dielectric substrate having a ground plane on one side thereof and two thin-film metal layers and an insulation layer disposed therebetween on the opposite side of the dielectric substrate. The metal and insulation layers are configured to form one or more capacitive pi networks and spiral inductors, which are electrically interconnected to form the filter.

REFERENCES:
patent: 2751558 (1956-06-01), Grieg et al.
patent: 4188594 (1980-02-01), Bongianni
patent: 4329779 (1982-05-01), England
patent: 4429289 (1984-01-01), Higgins et al.
patent: 4455540 (1984-06-01), Henriot et al.
patent: 4476518 (1984-10-01), Tsukahara
patent: 4488130 (1984-12-01), Young et al.
patent: 4489292 (1984-12-01), Ogawa
patent: 4551696 (1985-11-01), Choi et al.

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