中文摘要：

传统F类射频功放由于功放管寄生参数影响造成LC输出匹配电路二阶阻抗不为零而导致效率下降,对此采用补偿功放管寄生参数和优化调节二次谐波阻抗的方法,设计了一款结构可调而稳定的输出回路单元,获得了较高的效率和带宽.经过ADS仿真验证后得知,功率放大器工作在1.25GHz时,该功率附加效率达到74.3%以上,输出功率为47.6dBm,带宽为240 MHz.

英文摘要：

In view of the traditional class F RF power amplifier caused by parasitic parameters of power amplifier affect LC output second-order impedance matching circuit is not zero and cause of the decline of the efficiency, In this paper, using compensated amplifier tube parasitic parameters and optimizing adjustment of second harmonic impedance method, designed an adjustable structure and stable output circuit unit, then get the higher efficiency and bandwidth; Through the ADS simulation power amplifier working at 1.25 GHz, power added efficiency more than 74. 3%, the output power of 47. 6 dBm, bandwidth of 240 MHz.