Method for controlling the radiation pattern of an antenna means, an antenna system and a radio communication device
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United States of America Patent
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-
May 28, 2002
Grant Date -
N/A
app pub date -
Jul 2, 1999
filing date -
Jun 11, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for controlling the radiation pattern of an antenna means comprising N helically configured radiating elements, where N is an integer greater than 1, an antenna system, comprising N helically configured radiating elements, and a radio communication device including such an antenna system. In the method, at least one property of at least one received signal from at least one of the radiating elements is measured, and at least one of the parameters phase (.phi..sub.n) and amplitude (A.sub.n) for received signals and/or signals to be transmitted for at least one of the radiating elements is controlled as a response to the measured property of said received signal. The antenna system comprises means for controlling at least one of the parameters phase ((.phi..sub.n) and amplitude (A.sub.n) for signals received and/or signals to be transmitted by at least one of the antenna elements.
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