Wireless transceiver components with improved IQ matching
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United States of America Patent
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Apr 14, 2009
Grant Date -
N/A
app pub date -
Feb 1, 2007
filing date -
May 4, 2006
priority date (Note) -
Expired
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Abstract
A frequency divider comprises a first differential input pair, a second differential input pair, a first capacitive element having first and second ends, a second capacitive element having first and second ends, and four current sourcing elements. The first differential input pair includes first and second transistors that receive a differential local oscillator signal. The second differential input pair includes first and second transistors that receive the differential local oscillator signal. The first capacitive element communicates with first terminals of the transistors of the first differential input pair. The second capacitive element communicates with first terminals of the transistors of the second differential input pair. The four current sourcing elements respectively communicate with the first terminals of the transistors of the first and second differential input pairs.
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