发明名称 |
Amplification system having mask detection and bias compensation |
摘要 |
<p>A method and apparatus for reducing out-of-band frequency components of an RF signal having a carrier frequency which is not know in advance employ a control signal to vary adjustable bias parameters of the circuit. In particular embodiments, the RF signal is generated from a MOSFET power amplifier, which introduces distortion components into its output signal. Bias parameters of the MOSFET amplifier can be varied to reduce out-of-band frequency components, that is, out-of-band distortion. In addition, other elements of the network can be controlled by varying bias parameters, for example, a predistorter. <IMAGE></p> |
申请公布号 |
EP0996224(A1) |
申请公布日期 |
2000.04.26 |
申请号 |
EP19990308207 |
申请日期 |
1999.10.18 |
申请人 |
POWERWAVE TECHNOLOGIES, INC. |
发明人 |
FRENCH, GREGORY;GENTZLER, CHARLES R.;POSNER, RICHARD D.;SHIN, DO B.;VASSILAKIS, BILL |
分类号 |
H03F1/32;(IPC1-7):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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