Distributed TEM filter with interdigital array of resonators
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United States of America Patent
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-
Sep 1, 1998
Grant Date -
N/A
app pub date -
Aug 26, 1996
filing date -
Aug 26, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A distributed TEM resonator band pass filter has a set of rod-shaped resonators arranged in an interdigital line with alternate ones of the resonators being grounded to opposite walls of a housing. Each resonator has an ungrounded end which is capacitively coupled to a wall of the housing. Partitions, grounded to the housing, are located between successive ones of the resonators. Each partition closes off only a portion of the space between neighboring resonators to leave a coupling aperture. The interdigital arrangement provides for reduced loss and a higher Q. Input and output ports are provided at opposite ends of the interdigital line. The resonators may be constructed in the form of a suspended substrate, a stripline, or a microstrip configuration.
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