RF repeater
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United States of America Patent
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-
Aug 14, 2012
Grant Date -
Dec 4, 2008
app pub date -
Jun 18, 2008
filing date -
Dec 26, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A radio frequency repeater is provided. A donor antenna transmits a signal to and receives a signal from a base station. A service antenna transmits a signal to and receives a signal from a mobile station. A repeater filters and amplifies a signal between the two antennas. A polarization variation unit variably selects a polarization direction of at least one of the donor antenna and the service antenna in response to a detection signal of an isolation detector for detecting isolation between the two antennas. The isolation between the donor antenna and the service antenna can be sufficiently ensured.
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