Band-pass filter using microstrip lines

Details Band-pass filter using microstrip lines Band-pass filter using microstrip lines

1990-11-19

1992-04-14

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333203, 333205, H01P 1203

Patent

active

051051737

ABSTRACT:
A microwave band-pass filter of interdigital type employing microstrip lines and a filter characteristic adjusting method thereof are disclosed. The microwave band-pass filter includes plural stages of resonant lines. Furthermore, the resonant line includes a short-circuit portion, an open portion and a connection portion. The short-circuit portion has its one end grounded and the open portion has its one end open. The connection portion is interposed between the short-circuit portion and the open portion and has its width gradually increased from both sides of the short-circuit portion to both sides of the open portion.

REFERENCES:
patent: 4266206 (1981-05-01), Bedard et al.
patent: 4288530 (1981-09-01), Bedard et al.
patent: 4371853 (1983-02-01), Makimoto et al.
patent: 4506241 (1985-03-01), Makimoto et al.
patent: 4733208 (1988-03-01), Ishikawa et al.
patent: 4975664 (1990-12-01), Ito et al.

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