【摘要】 为了满足两个目标频段的通信需求，提出了一种双频阻抗变换器，并在此基础上设计了一款双频高效率功率放大器。通过偏置网络与双频输出匹配网络融合的设计方法，省去偏置网络的设计过程，降低了电路复杂度，并结合谐波控制网络对谐波阻抗进行控制，提升功率放大器性能。对所设计的双频高效率功率放大器进行了仿真验证，仿真结果和理论设计一致性良好，在此前提下，对实物进行了测试。测试结果表明，当输入功率为30 dBm时，在频段1.67～1.85 GHz,功率附加效率(Power Added Efficiency, PAE)为60.1%～81.5%,最大输出功率为42.5 dBm。在频段2.45～2.60 GHz, PAE为60.1%～72.7%,最大输出功率为43.2 dBm。更多还原

【Abstract】 In order to meet the communication requirements of dual-band, a dual-band impedance transformer is proposed.On this basis, a dual-band high-efficiency power amplifier is designed.Eliminating the design process of the bias network, and reducing the design complexity through the design method of combining the bias network with the dual-band output network, the harmonic control network is used to improve the performance of the power amplifier.The designed dual-band power amplifier is simulated and verified.A good agreement between the simulation results and the theoretical design is obtained, under this premise, a prototype is fabricated.The test results that when the input power is 30 dBm, at 1.67～1.85 GHz, the PAE is 60.1%～81.53%,and the maximum output power of 42.5 dBm is obtained.At 2.5 GHz, the PAE is 60.1%～72.7%,and the maximum output power of 43.2 dBm is acquired.更多还原