发明名称 |
AUTOMATIC OPTIMIZATION OF LINEARITY FOR ENVELOPE FEEDBACK RF AMPLIFIER LINEARIZATION |
摘要 |
An amplifier configuration and method of amplifying a signal are provided for automatic optimization of linearity of power amplifier input/output characteristics. The amplifier configuration utilizes a feedback loop that includes detecting envelopes of signals that are input and output from a power amplifier. The amplifier configuration includes an offset parameter determined in a second feedback loop that adapts to values for optimizing the linearity of the power amplifier output when input signal amplitudes are within a predetermined range of small signal values, thereby producing a substantially reduced distortion and thus linearized output over the entire input signal amplitude range. |
申请公布号 |
WO02087074(A3) |
申请公布日期 |
2003.10.30 |
申请号 |
WO2002EP04458 |
申请日期 |
2002.04.23 |
申请人 |
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL);SUNDSTROEM, LARS |
发明人 |
SUNDSTROEM, LARS |
分类号 |
H03F1/32 |
主分类号 |
H03F1/32 |
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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