摘要 |
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> |
申请人 |
POWERWAVE TECHNOLOGIES, INC.,, |
发明人 |
POSNER,,RICHARD D.;FRENCH,,GREGORY;GENTZLER,,CHARLES R.;SHIN,,DO B.;VASSILAKIS,,BILL |