ANTENNA DIVERSITY SYSTEM USING ACTIVE ANTENNA
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United States of America Patent
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Issued Date -
Dec 27, 2012
app pub date -
Oct 19, 2009
filing date -
Oct 21, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An antenna diversity system using an active antenna is disclosed. The disclosed system may include: a first antenna configured to transmit and receive a signal of a first frequency band; a second antenna configured to transmit and receive a signal of a second frequency band; and an active circuit unit implemented by active elements. In a first mode, the second antenna is operated as a passive antenna, and in a second mode, the second antenna is electrically connected to the active circuit unit and operated as an active antenna. The disclosed diversity system has the advantages of using a diversity antenna without increasing the size of a terminal, and of using an active antenna as a diversity antenna.
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