发明名称 |
APPARATUS AND METHOD FOR POWER TRANSMITTER IN WIRELESS COMMUNICATION SYSTEM |
摘要 |
An apparatus and a method for an Envelope Elimination and Restoration (EER) power transmitter are provided. The apparatus includes a signal separator for splitting a transmit signal to an amplitude component and a phase component, an orthogonal modulator for modulating the phase component into a Radio Frequency (RF) signal, a bias modulator for linearly amplifying the amplitude component, for determining a bias voltage according to a magnitude of the amplitude component, and for providing a current generated using the determined bias voltage to a high-efficiency power amplifier and the high-efficiency power amplifier for amplifying the RF signal using the linearly amplified amplitude component as a drain bias voltage and using the generated current as a drain bias current. |
申请公布号 |
US2009215413(A1) |
申请公布日期 |
2009.08.27 |
申请号 |
US20090391774 |
申请日期 |
2009.02.24 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD.;POSTECH FOUNDATION |
发明人 |
AHN CHEOL-WOO;SONG KEUN-HYO;SEO CHEOL-SOO;WOO YOUNG-YOON;KIM BUM-MAN;KIM IL-DU |
分类号 |
H04B1/04 |
主分类号 |
H04B1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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