Mixer structures with enhanced conversion gain and reduced spurious signals
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United States of America Patent
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Jan 12, 1999
Grant Date -
N/A
app pub date -
Jul 31, 1997
filing date -
Jul 31, 1997
priority date (Note) -
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Abstract
Mixer structures are described which include a current mirror for insertion of trickle currents to an input differential amplifier and an output interface for coupling an output differential amplifier to an output port. The current mirror trickle currents improve the mixer's conversion gain and third-order intercept point and the current mirror introduces them without introducing spurious signals. The output interface couples mixer currents to the output port while isolating the output port from power-supply spurious signals.
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