| 摘要 |
<p>A phase-amplitude modulator for mobile communications employs a phase detector (16), a low pass filter (18) and a voltage controlled oscillator (20) combined in a phase lock loop as an input to a nonlinear power amplifier (22) providing phase information with amplitude information from an amplitude detector (15) used to modulate the power amplifier output to synthesize phase-amplitude for the RF transmission signal.</p> |
