一种工作于4GHz的正方形微带巴伦设计  

Design of a Square Microstrip Balun Working at 4 GHz

作　　者：汪海鹏[1] 杨曙辉[2] 陈迎潮 冯梦璐[4] 

机构地区：[1]中国航天科技集团公司物联网技术应用研究院,北京100094 [2]中国传媒大学通信工程系,北京100024 [3]南卡罗来纳大学电气工程系,美国哥伦比亚29208 [4]北京信息科技大学信息与通信工程学院,北京100101

出　　处：《电子器件》2016年第4期755-758,共4页Chinese Journal of Electron Devices

基　　金：国家自然科学基金项目(61171039)

摘　　要：传统结构巴伦是一端开路的对称四端口网络,在奇偶模分析的基础上,对传统的巴伦结构进行改进,设计了一种工作于4 GHz的正方形微带巴伦。利用HFSS进行仿真分析,并加工成实物。测试结果表明,在3.7 GHz^5 GHz范围内,|S_(11)|大于10 d B;在工作频段内,|S_(21)|与|S_(31)|均小于4 d B,S_(21)与S_(31)之间的相位差在178°到183°范围内。该巴伦结构简单、实现成本较低,可应用于无线局域网、射频识别等领域。The traditional structure of balun is a symmetrical four-port network with the fourth port open-circuited. It has been analyzed using the even-odd mode method. A square mierostrip balun working at 4 GHz is improved. It was fabricated after being simulated by employing the HFSS software. The measured results show that, ｜S11｜ is more than 10 dB from 3.7 GHz to 5 GHz, ｜S21｜ and ｜S31｜ are less than 4 dB at the range of working band. Besides, the difference phase of S21 and S31 is about 178 degree to 183 degree. The proposed balun has a simple structure with a lower cost, and can be used in the application of wireless local area network （WLAN）and radio frequency identification （RFID） ,etc.

关 键 词：微带巴伦 S参数 奇偶模 四端口网络 

分 类 号：N702[自然科学总论]