Modular resonant cavity, modular dielectric notch resonator and

Details Modular resonant cavity, modular dielectric notch resonator and Modular resonant cavity, modular dielectric notch resonator and

1990-03-08

1991-09-24

LaRoche, Eugene R.

Wave transmission lines and networks

Resonators

Cavity resonator

333212, 3332191, 333230, H01P 706, H01P 1208

Patent

active

050517147

ABSTRACT:
Modular resonant cavities particularly for use in applications associated with high frequency electromagnetic energy each comprise a shell defining an aperture formed therethrough, and either end plates and/or divider closure plates, each having stepped-down regions for interfitting at perimeter ends of adjacent shells so as to form a resonant cavity. The modular resonant cavities include support rods passing through the corner regions of each closure plate. Fastening means at each end of the rods mechanically secure the modular resonant cavities together. The modular resonant cavities are particularly suited for forming dielectric notch resonators and in particular, such dielectric notch resonators having a centrally positioned resonators within the aperture defined by each shell and a coupling reactance mechanism formed by an inductive coupling wire and a capacitive element connected in series thereto so as to form a dielectric notch resonator with a relatively narrow bandwidth and with a small imaginary component about its operating center frequency. Dielectric notch filters using a plurality of such dielectric notch resonators further comprise a coupling transmission line which connects to each dielectric notch resonator resulting in an overall filter having a shorter overall length than comparable filters formed by prior art dielectric notch resonators. The resulting dielectric notch filter has a lower electrical loss than previous dielectric notch filters using longer coupling transmission lines.

REFERENCES:
patent: 4260967 (1981-04-01), Flieger
patent: 4489293 (1984-12-01), Fiedziuszko
patent: 4721933 (1988-01-01), Schwartz et al.
patent: 4862122 (1989-08-01), Blair, Jr. et al.
patent: 4940956 (1990-07-01), Garner

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