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发明公开
CN103457540A 一种Doherty结构的微波功率放大器 失效 - 权利终止

一种Doherty结构的微波功率放大器
摘要：
本发明涉及一种Doherty结构的微波功率放大器，其特征是：至少包括：功率分配器、载波放大支路和峰值放大支路，其中，载波放大支路由载波放大支路输入补偿线、载波放大支路输入匹配网络、载波放大器、载波放大支路输出匹配网络和载波放大支路补偿线依次串联连接组成；峰值放大支路由峰值放大支路输入补偿线、峰值放大支路输入匹配网络、峰值放大器、峰值放大支路输出匹配网络和峰值放大支路输出补偿线依次串联连接组成，载波放大支路输出补偿线的信号输出端与峰值放大支路输出补偿线信号输出端与B端电连接。本发明在性能相当的前提下，减小Doherty功放的尺寸，降低生产成本。
摘要（英）：

The invention relates to a microwave power amplifier with a Doherty structure. The microwave power amplifier is characterized by at least comprising a power divider, a carrier amplifier branch and a peak amplifier branch, wherein the carrier amplifier branch is formed by connecting a carrier amplifier branch input compensating line, a carrier amplifier branch input matching network, a carrier amplifier, a carrier amplifier branch output matching network and a carrier amplifier branch compensating line in series sequentially; the peak amplifier branch is formed by connecting a peak amplifier branch input compensating line, a peak amplifier branch input matching network, a peak amplifier, a peak amplifier branch output matching network and a peak amplifier branch output compensating line in series sequentially; the signal output end of a carrier amplifier branch output compensating line and the signal output end of the peak amplifier branch output compensating line are electrically connected with a B end. On the premise of equivalent performance, the size of the Doherty power amplifier is reduced, and the production cost is reduced.

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