| 摘要 |
A circuit is provided, having a feed forward linear power amplifier configured with two or more error correction loops ( 225-235, 255-265 ). Each of the error correction loops includes a band pass filter ( 237, 257 ). Each of the band pass filters ( 237, 257 ) is tuned to a different frequency range. A controllable frequency oscillator ( 220 ) can be coupled to an input of the error correction loops. A controller sweeps the frequency of the controllable frequency oscillator over the frequency range corresponding to each of the band pass filters ( 237, 257 ).
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