Strip-line type bandpass filter

Details Strip-line type bandpass filter Strip-line type bandpass filter

1992-08-06

1994-08-02

Ham, Seungsook

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333219, H01P 1203

Patent

active

053349610

ABSTRACT:
A first bandpass filter comprises: a plurality of resonators and input/output lines formed such that a strip line formed in a substantially straight line is cut in an inclined direction to the straight line to form a plurality of resonators spaced apart by gaps, the resonators being coupled across the gaps. Each of the resonators may be formed in parallelogram. Each of the resonators may be formed in a substantial isosceles triangle. A second bandpass filter comprises: a plurality of resonators and a ground electrode, each of the resonators having an open-end strip line, one end of each of the strip line being connected to the ground electrode, width of each gaps between the resonators varying along the each of resonators to make either of electrostatic or electromagnetic coupling between the resonators stronger than the other.

REFERENCES:
patent: 2859417 (1958-11-01), Arditi
patent: 3451015 (1969-06-01), Heath
patent: 5021757 (1991-06-01), Kobayashi et al.
patent: 5144268 (1992-09-01), Weidman

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