Amplifier circuit improved in linearity and frequency band
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United States of America Patent
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Apr 22, 2008
Grant Date -
Aug 30, 2007
app pub date -
Aug 15, 2006
filing date -
Aug 17, 2005
priority date (Note) -
Expired
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Abstract
An amplifier circuit improved in linearity and frequency band comprises an amplification block, a feedback block and an output block. The amplification block comprises a main transistor, an auxiliary transistor, a first capacitor, a second capacitor, a main transistor bias unit, and an auxiliary transistor bias unit. The main transistor bias unit comprises a first bias resistor. The auxiliary transistor bias unit comprises a second bias resistor. The feedback block comprises first and second feedback resistors, and the output block comprises an output resistor and an output transistor.
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