发明名称 |
RADIO FREQUENCY POWER AMPLIFIER CIRCUIT AND METHOD |
摘要 |
<p>An amplifier circuit is disclosed for providing a radio frequency output signal having a variable signal envelope, comprising a main amplifier device and an auxiliary amplifier and a combiner network for combining an output signal from said first amplifier device and a second output signal from said second amplifier device to provide a combined output signal of variable signal envelope to a load, and a signal processing circuit comprising an input and a non-linear processing section to provide at least said second radio frequency output signal with a signal envelope that has a non-linear dependency from an amplitude characteristic of the input signal such that the degree of non-linearity of the non-linear dependency varies dependent on the amount of change per time unit of the amplitude characteristic of the input signal. Further, a method of power amplifying a radio frequency signal having a variable signal envelope is disclosed.</p> |
申请公布号 |
EP2748924(B1) |
申请公布日期 |
2015.09.09 |
申请号 |
EP20120714304 |
申请日期 |
2012.04.10 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
HELLBERG, RICHARD;FONDÉN, TONY;KLINGBERG, MATS |
分类号 |
H03F1/02;H03F3/193;H03F3/21 |
主分类号 |
H03F1/02 |
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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