Dielectric resonator device having a single window for coupling

Details Dielectric resonator device having a single window for coupling Dielectric resonator device having a single window for coupling

1995-12-12

1998-07-21

Pascal, Robert

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

3332191, H01P 120, H01P 710

Patent

active

057839794

ABSTRACT:
A dielectric resonator device with a higher Q and a lower cost and which makes it possible to effect spatial coupling between predetermined dielectric columns of adjacent dielectric resonators without using any special coupling loop. One disclosed dielectric resonator device includes a first magnetic-field-coupling window for effecting magnetic field coupling between a first pair and a second pair of dielectric columns and a second magnetic-field-coupling window for effecting magnetic field coupling between a third pair of dielectric columns. Due to this construction, it is possible to successively effect magnetic field coupling between predetermined dielectric columns of adjacent dielectric resonators solely by spatial magnetic coupling, without having to employ any partition or special coupling loop. Further, this construction facilitates the provision of characteristics-adjusting holes perpendicularly to the plane made by each composite dielectric column.

REFERENCES:
Ishikawa et al., "800 MHz High Power Duplexer Using TM Dual Mode Dielectric Resonators"; IEEE MTT-S Digest, vol. III; Jun. 1-5, 1992; Albuqueque,NM; pp.1617-1620.
Bonetti et al.; "Application of Dual TM Modes to Triple-and Quadruple-Mode Filters"; IEEE Transactions on Microwave Theory and Techniques, vol. MTT-35, No. 12, Dec. 1987; pp. 1143-1149.
Official Novelty Report on United Kingdom Patent Application No. GB 9525490.0; Feb. 20, 1996.

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