一种L波段宽带功率放大器的设计  

The design of an L-band wideband power amplifier

作　　者：王亚松[1] 张海兵[1] 赵海涛[1] 庄敏[1] 

机构地区：[1]中国船舶重工集团公司第七二四研究所,南京210003

出　　处：《雷达与对抗》2012年第3期40-44,共5页Radar & ECM

摘　　要：利用反馈法实现了L波段宽带功率放大器末级功率管的宽带化设计,采用小信号S参数法和负载牵引法分别对前级和末级功率管进行了匹配电路设计。通过ADS软件对整个功放电路进行了模拟和仿真并最终完成了L波段宽带功率放大器设计。实测结果表明,该功放的峰值发射功率大于50 W,占空比可达20%,相对带宽约为25%,满足系统指标要求。The design of the final stage wideband power transistor of an L-band wideband power amplifier （PA） is realized through the feedback method, and the matching circuits of the front and final stage power transistors are respectively designed through the small-signal S-parameter and the Load-Pull. The overall PA circuit is simulated through the ADS software, and the design of the L- band wideband PA is accomplished finally. The test results show that the transmitting power of the peak value is more than 50 W, the duty ratio is up to 20% , and the relative bandwidth is about 25% , which satisfy the demands of the system indexes.

关 键 词：功率放大器 L波段 宽带 有源相控阵雷达 ADS 

分 类 号：TN722.75[电子电信—电路与系统]