960~1400 MHz宽带功率放大器设计  

Design of 960~1400 MHz broadband power amplifier

作　　者：程素杰 姚小江 丛密芳[3] 王为民 高津 Cheng Sujie;Yao Xiaojiang;Cong Mifang;Wang Weimin;Gao Jin(College of Integrated Circuit Science and Engineering,Nanjing University of Posts and Telecommunications,Nanjing 210023,China;Zhenjiang Research Institute,Nanjing University of Posts and Telecommunications,Zhenjiang 212002,China;Institute of Microelectronics,Chinese Academy of Sciences,Beijing 100029,China)

机构地区：[1]南京邮电大学集成电路科学与工程学院,江苏南京210023 [2]南京邮电大学镇江研究院,江苏镇江212002 [3]中国科学院微电子研究所,北京100029

出　　处：《电子技术应用》2023年第4期52-56,共5页Application of Electronic Technique

摘　　要：基于横向扩散金属氧化物半导体(LDMOS)器件,研制了一款应用于L波段的宽带射频功率放大器。该放大器共由2级放大级联组成,为了实现宽带以及良好的输出驻波,末级功放采用平衡式拓扑电路结构;级间匹配网络使用微带线及电容混合匹配方法实现宽带匹配。最终实测数据如下:频率覆盖0.96 GHz~1.4 GHz,功放整体输出功率达到50 dBm(100 W),功率增益大于30 dB,效率大于45%。功率回退8 dB,输出功率42 dBm时,邻信道功率比(ACPR)为-40 dBC。指标表明功放模块能够很好地应用于雷达和无线通信发射机中。Based on laterally diffused metal-oxide-semiconductor(LDMOS)devices,a broadband RF power amplifier for L-band was developed.The amplifier is composed of two stages of amplification and cascade connection.In order to achieve broadband and good output standing wave,the final stage power amplifier adopts a balanced topology circuit structure;the inter-stage matching network uses the microstrip line and capacitor hybrid matching method to achieve broadband matching.The final measured data are as follows:the frequency covers 0.96 GHz~1.4 GHz,the overall output power of the power amplifier reaches 50 dBm(100 W),the power gain is greater than 30 dB,and the efficiency is greater than 45%.The power backoff is 8 dB,and when the output power is 42 dBm,the adjacent channel power ratio(ACPR)is-40 dBC.The indicators show that the power amplifier module can be well used in radar and wireless communication transmitters.

关 键 词：横向扩散金属氧化物半导体 L波段 宽带 级联 

分 类 号：TN722.75[电子电信—电路与系统]