Wave transmission lines and networks – Resonators – Coaxial or shielded
Patent
1992-02-03
1993-05-04
Pascal, Robert J.
Wave transmission lines and networks
Resonators
Coaxial or shielded
333207, 29600, H01P 704, H01P 1205
Patent
active
052085686
ABSTRACT:
A dielectric resonator (400) is formed, according to the invention, from a block of dielectric material having top, bottom, and side surfaces. A protuberance (407) is formed on at least the top surface of the block. Further, a hole (405) is formed through the block, which hole extends substantially from the apex of the protuberance, through the block, to the bottom surface. The hole and protuberance combine to form a mesa structure (604, 704). The bottom surface, side surface, and an interior surface of the hole (405) are coated with a conductive layer. Further, a conductive coating is selectively disposed on the top surface of the block, which coating at least partially covers the mesa (604, 704). A dielectric block resonator (400, 500) is thereby formed whose resonant characteristics are at least partially determined by the physical dimensions of the mesa (604, 704).
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patent: 4668925 (1987-05-01), Towatari et al.
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patent: 4837534 (1989-06-01), Van Horn
patent: 4937542 (1990-06-01), Nakatuka
patent: 5004992 (1991-04-01), Grieco et al.
Coffing James A.
Ham Seung
Krause Joseph P.
Motorola Inc.
Pascal Robert J.
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