发明名称 |
APPARATUS AND METHOD FOR COMPENSATING OFFSET OF POWER AMPLIFIER IN A MOBILE COMMUNICATION SYSTEM |
摘要 |
<p>An apparatus and method for compensating for an error of a power amplifier in a digital mobile communication system having a predistorter are provided. The apparatus and method comprise a gain compensator for pre-correcting a gain error occurring in a path of each phase signal while an in-phase signal and a quadrature-phase signal, output from the predistorter, undergo digital-to-analog (D/A) conversion; a digital-to-analog converter (DAC) for converting a digital signal output from the gain compensator into an analog signal; and a transmission signal converter for converting an output of the DAC into a radio frequency (RF) signal, and outputting the RF signal to the power amplifier.</p> |
申请公布号 |
KR20050108167(A) |
申请公布日期 |
2005.11.16 |
申请号 |
KR20040033235 |
申请日期 |
2004.05.11 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
SONG, YOO SEUNG;LEE, JAE HYOK;LEE, SEUNG HWAN;HWANG, KI HWAN;JEON, JAE HO;MAENG, SEUNG JOO |
分类号 |
H04B7/26;H03C1/62;H03F1/30;H03F1/32;H04B1/04;H04B17/00;(IPC1-7):H04B7/26 |
主分类号 |
H04B7/26 |
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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