用于VLF/VHF频段的大功率巴伦设计  

Design of a VLF/VHF broadband high⁃power BALUN

作　　者：侯钧 陈根余 方建新 杨阳 黄亮 HOU Jun;CHEN Genyu;FANG Jianxin;YANG Yang;HUANG Liang(Chengdu SWIEE Power Electronics Technology Co.,Ltd.,Chengdu 611730,China)

机构地区：[1]成都四威功率电子科技有限公司,四川成都611730

出　　处：《电子设计工程》2021年第21期89-93,共5页Electronic Design Engineering

摘　　要：海洋探索、电磁兼容测试、粒子加速等技术的快速发展,对能覆盖VLF/VHF频段的功率设备提出了新要求。文中基于同轴线的传输线变压器理论,结合同轴线寄生参数、铁氧体材料的实际应用等问题,建立了能够体现宽带性能特征的巴伦模型。在此模型指导下,研制出了频率覆盖9 kHz~400 MHz、损耗小于0.5 dB、功率容量400 W以上的宽带巴伦。此项技术应用到了对应频段的宽带功率放大器中,对宽带功放的发展、磁材料与射频技术的研究具有促进作用。With the rapid development of marine,electromagnetic compatibility,accelerators applications,new requirements are put forward for power equipment that can cover the VLF/VHF band.Based on the theory of coaxial transmission line transformer,and combined with practical problems such as coaxial parasitic parameters and practical application of ferrite materials,a BALUN model is established that can present the characteristics of broadband performance.Under the guidance of this model,a 400 W broadband BALUN is developed,whose frequency coverage is 9 kHz to 400 MHz,the loss is less than 0.5 dB.This BALUN is applied to broadband power amplifiers in the corresponding frequency band,which is of great significance to the development of broadband amplifiers,magnetic materials and RF technology.

关 键 词：巴伦 传输线变压器 铁氧体 宽带功率放大器 

分 类 号：TN722.75[电子电信—电路与系统]