Asymmetrical trap comprising coaxial resonators, reactance eleme

Details Asymmetrical trap comprising coaxial resonators, reactance eleme Asymmetrical trap comprising coaxial resonators, reactance eleme

1986-06-03

1988-03-08

LaRoche, Eugene R.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333222, H01P 1202

Patent

active

047301732

ABSTRACT:
An improved asymmetrical trap which includes at least one dielectric material coaxial resonator, a capacitor inserted between an inner conductor of the coaxial resonator and a first signal transmission line, with an outer conductor of the coaxial resonator being grounded so as to produce a series resonance at a first frequency through the combination of the capacitor and coaxial resonator, and a second transmission line connected, at their corresponding ends, in parallel with opposite ends of the series connection of the coaxial resonator and capacitor, and opened or short-circuited at their other far ends, so that anti-resonance is produced at a second frequency through the combination of the capacitor, coaxial resonator and second transmission line.

REFERENCES:
patent: 2196272 (1940-04-01), Peterson
patent: 2532993 (1950-12-01), Carter
patent: 2751557 (1956-06-01), Sosin
patent: 3737815 (1973-06-01), Low et al.
patent: 3757258 (1973-09-01), Dillman et al.
patent: 4245198 (1981-01-01), Nishikawa et al.
patent: 4342972 (1982-08-01), Nishikawa et al.
patent: 4382238 (1983-05-01), Makimoto et al.
patent: 4426631 (1984-01-01), D'Avello et al.
"The Prevention of Interference by a Single Unwanted Frequency in TV Reception", Electronic Engineering; Jul. 1953, p. 298.

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