Multi-frequency antenna
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United States of America Patent
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-
Jun 18, 1991
Issued Date -
N/A
app pub date -
Dec 19, 1989
filing date -
Dec 25, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A multi-frequency antenna to be used commonly for reception of multiple different frequencies includes first and second rods extendably held by and through a third rod. The first rod is coupled to the second rod via a phase shifter so that when the first and second rods are fully extended, the antenna behaves as a high gain antenna for common use in an AM, FM and car telephone system.
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Family
International Classification(s)
Cited Art Landscape
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