TM dual mode dielectric resonator apparatus with a method for ad

Details TM dual mode dielectric resonator apparatus with a method for ad TM dual mode dielectric resonator apparatus with a method for ad

1996-04-25

1997-08-19

Lee, Benny T.

Wave transmission lines and networks

Resonators

Dielectric type

H01P 710

Patent

active

056592752

ABSTRACT:
In a TM dual mode dielectric resonator apparatus, a cross-shaped TM dual mode dielectric resonator is provided in an electrically conductive case, and the TM dual mode dielectric resonator includes first and second dielectric resonators integrally formed so as to be perpendicular to each other, and there is further formed at least one coupling groove for coupling an operation mode of the first dielectric resonator with that mode of the second dielectric resonator, wherein the coupling groove is formed on at least one of front and back surfaces of a crossing portion of the first and second dielectric resonators, in a diagonal direction thereof so as to cut electric lines of force of either one of an odd mode and an even mode. Alternatively, at least one coupling projection may be formed instead of the coupling groove.

REFERENCES:
patent: 4642591 (1987-02-01), Kobayashi
patent: 5078621 (1992-01-01), Nishikawa et al.
patent: 5336112 (1994-08-01), Michishita et al.
1992 IEEE MIT-S International Microwave Symposium Digest, vol. III, 1-5 Jun. 1992, New York, pp. 1617-1620, "800 MHz High Power Duplexer Using TM Dual Mode Dielectric Resonators", Y. Ishikawa, et al.
Conference Proceedings of the 19th European Microwave Conference 1989, 4-7 Sep. 1989, Tunbridge Wells, Great Britain, pp. 886-891, "4GHz Band Band-Pass Filter Using an Orthogonal Array Coupling TM110 Dual Mode Dielectric Resonator", T. Nishikawa, et al.
U.S. Co-Pending Patent Appln. No. 08/335,043.
U.S. Co-Pending Patent Appln. No. 08/339,542.

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