| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique capable of suppressing overshoot accompanying a rapid start-up of an output power of a transmission signal without improving a power amplifier.SOLUTION: The wireless communication apparatus shapes a wave by multiplying a base band signal D1 generated from a base band signal generator 1 by a shaping signal D2 (a shaping signal having a wave shape corresponding to reverse characteristics of response characteristics of a transmission power amplifier 3) generated from an envelope waveform generator 5, converts a frequency of a base band signal D3 after waveform shaping to a high-frequency signal D4 with a frequency converter 2, inputs the high-frequency signal to the transmission power amplifier 3, and amplifies the high-frequency signal.SELECTED DRAWING: Figure 1 |
