Cavity resonator having a re-entrant stub on a printed...

Details Cavity resonator having a re-entrant stub on a printed... Cavity resonator having a re-entrant stub on a printed...

2011-07-19

2011-07-19

Lee, Benny (Department: 2817)

Wave transmission lines and networks

Resonators

Coaxial or shielded

C333S204000, C333S223000

Reexamination Certificate

active

07982560

ABSTRACT:
The invention is related to cavity resonators, a method for producing a cavity resonator, and a band pass filter system comprising cavity resonators. A cavity resonator (100) according to the invention comprises a printed circuit-board (10); an upper electrically conductive cap (20) having a three-dimensional structure (21); and a lower electrically conductive cap (30) having a three-dimensional structure (31). The structures of the upper cap (20) and the lower cap (30) are identical and the two caps (20, 30) are mounted on opposite sides of the printed circuit-board (10).

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Yau et al., “Effects on Tuning Structures on Combline Filters,”, European Microwave Conference 1996, Prague, pp. 427-430, Sep. 1996.
Brown A. R. et al., “A Varactor-Tuned RF Filter,” IEEE Transactions on Microwave Theory and Techniques, IEEE Service Center, Piscataway, NJ, vol. 48, No. 7, pp. 1157-1160, Jul. 2000.
European Search Report, Feb. 14, 2008.

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