Antenna apparatus and portable radio set
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 26, 2002
Grant Date -
N/A
app pub date -
Aug 7, 2000
filing date -
Aug 6, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An antenna that functions as an approximately balanced antenna that is structurally asymmetric but electrically symmetric includes a first antenna element that is extendable and retractable, a second fixed antenna element, an unbalanced transmission line feeding the first and second antenna elements, and a balanced-unbalanced convertor. At a time of extending the first antenna element, the first and second antenna elements are supplied an electric power from the unbalanced transmission line through the balanced-unbalanced convertor, so that the first and second antenna elements cooperate to function as an antenna.
First Claim
Family
International Classification(s)
Cited Art Landscape
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