摘要: |
应用EER(Envelope Elimination and Restoration)线性功放技术和高效率D类音频放大技术,实现了一个高效率线性RF功率放大器。该线性放大器为AM调制,7MHz时效率优于75%。 |
关键词: 功放 高效率 RF 线性放大器 音频放大 功率放大器 调制 MH |
DOI:10.3969/j.issn.1001-893X. |
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基金项目: |
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Study on and Design of a High Efficiency Linear RF Power Amplifier |
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Abstract: |
A high efficiency linear RF amplifier is developed, which is based on the basic theory of Envelope Elimination and Restoration (EER) linearization amplifier and Class D audio amplifier technology. The amplifier is amplitude modulated, the efficiency is higher than 75% at 7 MHz. |
Key words: Communication system,Linear power amplifier,Envolope elimination and restoration,Class-D audio amplifier,Class-D carrier amplifier,Power supply modulator |