Communication device having a wideband receiver and operating method therefor
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United States of America Patent
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Mar 26, 2002
Grant Date -
N/A
app pub date -
Dec 22, 1998
filing date -
Dec 23, 1997
priority date (Note) -
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status (Latency Note)
Importance
Abstract
To accommodate for a release of uncleared spectrum in a wideband communication system (10) while improving isolation in a receiver (FIG. 4) between wideband carriers, a common intermediate frequency converter down-converts differing but relatively high frequency carriers, incident to the receiver, to corresponding differing but relatively low frequency carriers. Receiver chains (174-176) response to the plurality of relatively low frequency carriers each have a filter (140-144) arranged to isolate selected ones of the relatively low frequency carriers. In a radio frequency communication system having three or more frequency sequential carriers, the receiver chains (174-176) may include branches that have filters that further isolate carriers within the receiver by applying non-sequential carriers to the branches in each receiver chain.
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