Multi-band handset architecture
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United States of America Patent
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Jun 3, 2008
Grant Date -
Apr 5, 2007
app pub date -
Sep 30, 2005
filing date -
Sep 30, 2005
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Architectures for a class of multi-band handsets are described. These architectures separate linearity requirements from isolation requirements and reduce the number of throws on switches requiring linearity through the use of distributed switching, filter structure placement between the switch functions, not sharing a power amplifier between frequency bands that have a Tx to Rx overlap, and simplifying the switching structure using filtering networks or multiple antennas.
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