There is provided a power amplifier that can increase power efficiency by preventing power consumption caused by DC components from an RF input signal. A power amplifier according to an aspect of the invention may include: an inverter amplification section amplifying an input signal according to an inverter method to thereby remove DC components from the input signal; an impedance matching section matching an impedance of a transmission path of the input signal amplified by the inverter amplification section; and an amplification section amplifying an impedance-matched signal from the impedance matching section according to a gain set beforehand.
申请公布号
US2011121903(A1)
申请公布日期
2011.05.26
申请号
US20100823489
申请日期
2010.06.25
申请人
SAMSUNG ELECTRO-MECHANICS CO., LTD.
发明人
SONG YOUNG JEAN;IIZUKA SHINICHI;KIM YOUN SUK;BAE HYO KUN;KIM SANG HEE;WON JUN GOO;NAM JOONG JIN;KIM KI JOONG;CHOI JAE HYOUCK