Tunable fiberglass whip antenna
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United States of America Patent
Stats
-
Jul 22, 1980
Grant Date -
N/A
app pub date -
Oct 13, 1978
filing date -
Oct 13, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A tunable fiberglass whip antenna comprises an elongated fiberglass core having a conductive wire coiled around the core and serving as the antenna. The uppermost extremity of the wire is tightly coiled around an axial bore within the fiberglass. A metal insert, fixed within the fiberglass bore is in threaded engagement with a set screw accessible from the top of the antenna. By adjusting the longitudinal position of the set screw relative to the tightly wound wire at the end of the antenna, the inductive coupling between the coil and screw is varied to thereby change the effective length of the antenna.
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Cited Art Landscape
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