Evanescent mode microwave bandpass filter with a rotatable crank shape coupling antenna
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United States of America Patent
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May 24, 1988
Grant Date -
N/A
app pub date -
Jun 13, 1986
filing date -
Jun 13, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The microwave bandpass filter in the form of a cutoff frequency waveguide (1) or evanescent mode guide, being besides tunable within a range of frequencies and having at least one terminal (21, 22) of the coaxial type, has terminals each equipped with a crank-shaped coupling antenna (15) operable to be rotated about its longitudinal axis for filter tuning purposes.
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