Filter device

Details Filter device Filter device

1989-03-27

1990-12-04

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333204, 333235, H01P 1203

Patent

active

049756648

ABSTRACT:
A filter device of a three-conductor structure type having a stripline pattern resonator consisting of a plurality of juxtaposed resonator conductors between two dielectric substrates which are stacked to each other, each of said dielectric substrates being provided with an outer conductor layer which surrounds the the outer surface and side portion thereof and is connected to one ends of the juxtaposed resonator conductors, and openings for adjusting the frequency of response of the filter, each frequency adjusting opening being provided on the lateral portions of the outer conductor layers corresponding to said one end of the each resonator conductor. A conductor strip for increasing the frequency of response of the filter can be removably applied to each frequency adjusting opening.

REFERENCES:
patent: 4157517 (1979-06-01), Kneisel et al.
patent: 4266206 (1981-05-01), Bedard et al.
patent: 4785271 (1988-11-01), Higgins, Jr.
patent: 4837534 (1989-06-01), Van Horn

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