2～6GHz宽带功率放大器模块设计

摘要

In this paper,a GaN wideband power amplifier is designed.A wideband power amplifier of 2～6 GHz based on CREE CGHV60040D chip model is designed,with modeling and electromagnetic field simulation of bonding wire and micro-strip,designing and optimizing load impedance matching in simulation software with the principle of optimal load matching network.The pulse signal measured results show that the broadband power amplifier module has a good performance in the wide band of 1.8～5.5 GHz,thegain is 10～13 dB,the output power is above 43 dBm,and the power added efficiency(PAE) is above 40％.%实现了一款GaN超倍频功率放大器.基于CREE公司型号为CGHV60040D裸芯片,通过对芯片外围键合线和微带线进行建模及电磁场仿真,利用最佳负载阻抗匹配的原理,并借助仿真软件设计优化了宽带匹配网络,最终完成了一款工作在2～6 GHz的单管宽带功率放大器.对所设计的宽带功放模块进行脉冲测试,在1.8～5.5 GHz的宽频带范围内,增益为10～13 dB,输出功率43 dBm以上,功率附加效率(PAE)达到40％以上.