Dielectric resonator

Details Dielectric resonator Dielectric resonator

2005-10-11

2008-08-26

Jones, Stephen E (Department: 2817)

Wave transmission lines and networks

Resonators

Dielectric type

C333S202000

Reexamination Certificate

active

07417518

ABSTRACT:
A dielectric resonator is disclosed. In one embodiment, the resonator includes i) a conductive case having a plurality of walls which together define an inner space, ii) a substrate placed at the bottom of the conductive case, and iii) a cylindrical dielectric resonator unit, mounted centrally on the substrate having a central longitudinal axis. The cylindrical dielectric resonator unit includes a dumbbell shaped hole located centrally in the resonator unit extending from a top to a bottom of the resonator unit. In one embodiment, the dumbbell shaped hole includes i) a top layer, ii) a bottom layer and iii) an intermediate layer sandwiched between the top and bottom layers. In one embodiment, the substrate and resonator unit are enclosed inside the conductive case.

REFERENCES:
patent: 4706052 (1987-11-01), Hattori et al.
patent: 5059929 (1991-10-01), Tanaka
patent: 6882252 (2005-04-01), Cros et al.
patent: 6965276 (2005-11-01), Hasegawa

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