| 摘要: |
| 通过分析信号初相与多频率合成信号包络的关系，提出利用初相调整的方法来优
化合成信号包络，从而提高功放的功率利用率。仿真分析结果和实际应用表明，该方法可以
很好地降低合成信号包络的最大电平，使合成信号包络尽可能在放大器的线性范围内，从而
有效抑制了交调和互调成分以及谐波成分，提高了功率利用率。 |
| 关键词: 功率放大器 功率利用率 多频率合成信号 包络优化 初相调
整 |
| DOI： |
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| 基金项目: |
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| Improving power efficiency of multi-frequency signal by adjusting initial phases |
| LI Da-fang,JIA Kun |
| () |
| Abstract: |
| Through analysing the relationship between the initial phases and the multi-freq
uen
cy signal′s envelop, initial phases adjustment method is proposed to optimiz
e the multi-frequency signal′s envelop, accordingly improve the power amplifie
r′s power efficiency. The simulation result and the actual application indicate
that this method can depress the level of multi-frequency signal′s envelop eff
ec
tively, and makes the multi-frequency signal′s envelop in the power amplif
ier′s linear range, so as to effectively restrain the cross modulation and inte
r modula
tion, and the harmonic, then improve the power efficiency. |
| Key words: power amplifier power efficiency multi-frequency sig
nal envelop optimization initial phases adjust |
