基于磁感应通信的E类放大器设计研究  

Design and Research of Class-E Amplifier Based on Magnetic Induction Communication

作　　者：王颢 谢旭[1] 王宇航 WANG Hao;XIE Xu;WANG Yuhang(College of Electronic Engineering,Naval University of Engineering,Wuhan 430033)

机构地区：[1]海军工程大学电子工程学院,武汉430033

出　　处：《舰船电子工程》2022年第5期55-59,共5页Ship Electronic Engineering

基　　金：国家自然科学基金项目(编号:41727804)资助。

摘　　要：针对磁感应通信需求,设计了一种推挽型类放大器,具有高效率、低损耗等优点。在相同输入电压条件下,推挽型类放大器的输出功率相对于单E类放大器提高4倍。通过Multisim仿真计算得到频带宽度为476Hz,基本满足磁感应通信中的MSK调制需求。最后制作试验样机,天线辐射功率可达1.45W,系统效率为73%,拓展了磁感应通信距离。According to the requirements of magnetic induction communication,a push-pull amplifier is designed,which has the advantages of high efficiency and low loss.Under the same input voltage,the output power of push-pull class amplifier is 4 times higher than that of single class-E amplifier.Through Multisim simulation calculation,the bandwidth is 476Hz,which basically meets the MSK modulation requirements in magnetic induction communication.Finally,the experimental prototype is made.The an⁃tenna radiation power is up to 1.45W and the system efficiency is 73%,which greatly prolongs the magnetic induction communica⁃tion distance.

关 键 词：磁感应通信 E类功率放大器 甚低频 推挽结构 

分 类 号：TN722[电子电信—电路与系统] TN92