Bandpass filter and method of trimming response characteristics

Details Bandpass filter and method of trimming response characteristics Bandpass filter and method of trimming response characteristics

1990-07-27

1991-05-07

Laroche, Eugene R.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333205, H01P 1203, H01P 1205

Patent

active

050140248

ABSTRACT:
A bandpass filter is disclosed which comprises a pair of opposing, first and second dielectric substrates each having an outer surface provided with a ground conductor, and a conducting resonator member provided between the first and second dielectric substrates and including a plurality of parallel resonator fingers each having an open circuit end and a base end electrically connected to said ground conductor, characterized in that a part of the ground conductor is removed to form an opening therein between adjacent two fingers, thereby to increase the bandwidth of frequency to which the filter responds.

REFERENCES:
patent: 4157517 (1979-06-01), Kneisel et al.
patent: 4288530 (1981-09-01), Bedard et al.
patent: 4418324 (1983-11-01), Higgins
patent: 4963843 (1990-10-01), Peckham

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