| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a wideband amplifier, a wideband signal communication circuit and an amplification method that support a small input level signal by implementing a readily adjustable gain of an amplification section. <P>SOLUTION: A wideband amplifier 10 comprises: signal distribution means 20 that distributes an adjusting signal to n different bands; n analog amplifiers 31-3n that correspond to the n bands, respectively, and amplify the distributed adjusting signals on the basis of control voltages applied thereto to output voltage signals; voltage application means 40 that holds a reference voltage value, generates voltage values for matching the output voltage signals to the reference voltage value, and applying them as the control signals to the analog amplifiers 31-3n; and output means 50 for combining and outputting the voltage signals output from the n analog amplifiers 31-3n. <P>COPYRIGHT: (C)2013,JPO&INPIT |
