Waveguide filter employing dielectric resonators

Details Waveguide filter employing dielectric resonators Waveguide filter employing dielectric resonators

1977-09-27

1978-11-07

Smith, Alfred E.

Wave transmission lines and networks

Automatically controlled systems

With control of equalizer and/or delay network

333 83R, 333 98R, H01P 120, H01P 706, H01P 100

Patent

active

041248309

ABSTRACT:
A waveguide bandstop filter is described. Two ceramic dielectric disc resonators each having a resonant frequency f.sub.0 and separated by 3/4.lambda.go, where .lambda.go is the wavelength at f.sub.0, are each disposed in individual apertures in the waveguide wall. The substantial portion of each resonator is exterior to the waveguide cavity and surrounded by a metallic housing which isolates each resonator from each other. The resonators are oriented so that a coupling arrangement exists between the electromagnetic energy propagating through the waveguide and each resonator so that a resonant mode is excited therein at frequency f.sub.0.

REFERENCES:
patent: 2588226 (1952-03-01), Fox
patent: 3237132 (1966-02-01), Okaya
patent: 3548348 (1970-12-01), Gerdine
patent: 3579153 (1971-05-01), Wang
patent: 3821669 (1974-06-01), Wuerffel
patent: 3840828 (1974-10-01), Linn et al.
patent: 3938064 (1976-02-01), O'Bryan, Jr. et al.
patent: 3973226 (1976-08-01), Affolter et al.
patent: 4028652 (1977-06-01), Wakino et al.

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