摘要
基于ADS软件,选取合适的静态直流工作点,采用负载牵引法得到LDMOS晶体管BLF7G22L130的输出和输入阻抗特性,并通过设计和优化得到最佳的共轭匹配网络,设计出高效率功率放大器。ADS设计仿真表明该功率放大器在中心频率2 160 MHz处的效率达到70%,稳定性好、增益平坦度小等优点。
Based on ADS software,the high effective and power amplifier can be designed after learning the output and input impedance characteristic of the LDMOS transistor BLF7G22L130 by Load-pulling method under an appropriate static DC point and realizing the best conjugate match network through design and optimizing.ADS simulation indicates that the effectiveness of this kind of amplifier reaches 70% at the center frequency of 2 160 MHz,with the advantages of high stability and low gain flatness.
出处
《电子设计工程》
2012年第20期148-149,152,共3页
Electronic Design Engineering
