发明名称 |
Method for controlling the gain of radio-frequency signal |
摘要 |
The present invention relates to a method for adjusting the amplification of a high frequency signal, a transmitter or receiver unit and a communication system. The aim of the invention is to provide a method and device for improved use of a polar-loop concept in a transmitter, especially for a mobile radio link. According to the method for adjusting the amplification of a high frequency signal, wherein the phase angle and the amplitude of an error-free input signal are separated from each other with a defined part of an output signal and readjusted, an output voltage of a battery voltage modulator is evaluated as a measure for an error at the output of a transmitter amplifier and taken into account in order to provide a correction.
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申请公布号 |
US7386287(B2) |
申请公布日期 |
2008.06.10 |
申请号 |
US20040482848 |
申请日期 |
2004.01.05 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
JENKINS ROLAND;HERZBERG RALF;NAGEL JOERG;KLEINSORGE MATHIAS |
分类号 |
H04B1/06;H03F1/32;H03G3/00;H03G3/30;H04B1/00;H04B1/04;H04B1/18 |
主分类号 |
H04B1/06 |
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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