Microwave filter

Details Microwave filter Microwave filter

1985-11-25

1987-02-03

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333202, 333219, 333246, H01P 1203, H01P 708

Patent

active

046411160

ABSTRACT:
A microwave bandpass filter having a wide bandwidth, low loss, and yet which requires only a relatively small circuit area. A generally annularly shaped unit-wavelength resonator is formed on a dielectric substrate, disposed between input and output matching circuits. The unit-wavelength resonator is formed by a pair of semi-annular strips disposed opposite one another and having opposing stubs defining therebetween a gap of predetermined width.

REFERENCES:
patent: 4185252 (1980-01-01), Gerlach
Ronde and Shammas--"MIC Bandfilters Using Open--Ring Resonators", 4th European Microwave Conference, Montreux, Switzerland (Sep. 10-13, 1974); pp. 531-535.

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