Method of measuring resonant frequency of a resonator and coupling degree of two resonators
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United States of America Patent
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-
Dec 11, 2001
Grant Date -
N/A
app pub date -
Jul 8, 1999
filing date -
Feb 24, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A filter is composed of plural resonators formed on one surface of a dielectric substrate and a ground plane formed on the other surface. A resonant frequency of each resonator is accurately measured individually and independently from other resonators. Other resonators not selected for measurement are all short-circuited or covered with a conductive member to shift their resonant frequency to a region that does not interfere with the resonant frequency of the resonator under measurement. Also, a coupling coefficient of an arbitrary pair of resonators is accurately measured under no interference from other resonators in the similar manner.
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