Bandpass filer having parallel-coupled lines

Details Bandpass filer having parallel-coupled lines Bandpass filer having parallel-coupled lines

1993-05-25

1995-04-04

Pascal, Robert J.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333246, H01P 1203

Patent

active

054041198

ABSTRACT:
A bandpass filter having parallel-coupled lines is disclosed having at least one pair of two-terminal parallel-coupled lines disposed consecutively in a step form, wherein the widths of the pairs of two-terminal parallel couple lines are alternately increased and decreased.

REFERENCES:
patent: 4851797 (1989-07-01), Nakamura
patent: 5187459 (1993-02-01), Russell et al.
Cohn, "Parallel-Coupled Transmission-Line-Resonator Filters", IRE Trans. on Microwave Theory & Tech. pp. 223-231, 1958.
Bahl, "Broadbanding Microstrop Filters Using Capacitive Compensation", Applied Microwave, pp. 70-76, Aug./Sep. 1989.
"Strip-Line Resonator Filters Having Multi-Coupled Sections", by Mitsuo Makimoto et al, IEEE MTT-S Digest, pp. 92-94, 1983.

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