Intelligent antenna
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United States of America Patent
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N/A
Issued Date -
Jul 5, 2007
app pub date -
Dec 30, 2005
filing date -
Dec 30, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention is to provide an intelligent antenna mounted on a circuit board including an antenna diversity transceiver circuit connected to an intermediate third end of a T-shaped connecting member, and a first and a second antenna units connected to two symmetric ends of the T-shaped connecting member respectively, wherein two radio frequency switches are interconnected the second antenna unit and one of the two symmetric ends through two transmission lines respectively. Thus, an antenna diversity signal sent from the antenna diversity transceiver circuit is adapted to switch both the radio frequency switches so as to direct signal from the second antenna unit to the T-shaped connecting member through the two transmission lines, which are adapted to generate a phase difference either in-phase or out-of-phase between signals sent from the first and second antenna units, in order to obtain an optimum signal receiving quality for the intelligent antenna and eliminate dead angle problem caused by antenna radiation field.
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