Title:
COAXIAL CAVITY RESONATOR
Document Type and Number:
WIPO Patent Application WO2000010220
Kind Code:
A3
Abstract:
The construction is a coaxial cavity resonator (20, 30, 40, 50) comprising at least one conductive body (11, 31), which body is open at one end and shortened from a quarter-wave resonator. The conductive body includes a main rod (16), which is in one end attached to the cavity wall (15), and a main disc (17) attached to the free end of the main rod (16). The cavity (12) further comprises one or more conductive plates (21, 41, 51) located between the main disc (17) and the side walls (13), at the first side (17a) of, and out of galvanic contact with, the main disc (17). The shortening is carried out by creating air-insulated extra capacitance between the resonator cavity walls via the conductive plates and a mechanical structure at the open end of the conductive body.
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Inventors:
RAETY TUOMO (FI)
KANERVO ANTTI (FI)
KANERVO ANTTI (FI)
Application Number:
PCT/SE1999/001368
Publication Date:
May 18, 2000
Filing Date:
August 12, 1999
Export Citation:
Assignee:
ALLGON AB (SE)
RAETY TUOMO (FI)
KANERVO ANTTI (FI)
RAETY TUOMO (FI)
KANERVO ANTTI (FI)
International Classes:
H01P7/04; (IPC1-7): H01P7/06
Foreign References:
| US3448412A | 1969-06-03 | |||
| US3496498A | 1970-02-17 | |||
| US5666093A | 1997-09-09 | |||
| GB2253522A | 1992-09-09 |
Other References:
PATENT ABSTRACTS OF JAPAN
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