Diversity antenna system and method utilizing a threshold value
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United States of America Patent
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Feb 26, 2013
Grant Date -
Dec 16, 2010
app pub date -
Jun 15, 2010
filing date -
Jun 15, 2009
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An antenna system for receiving an RF signal from a first antenna and a second antenna includes a phase shift circuit. The phase shift circuit shifts a phase of the RF signal from the second antenna by one of a plurality of possible phase shifts to produce a phase shifted signal. A combiner combines the RF signal from the first antenna and the phase shifted signal to produce a combined signal. A comparator circuit compares a signal quality of the combined signal with a minimum threshold value to determine if the signal quality of the combined signal is equal to or greater than the threshold value. The comparator circuit is in communicative control of the phase shift circuit and maintains the phase shift of the RF signal received by the second antenna in response to the signal quality of the combined signal being equal to or greater than the threshold value.
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