基于波纹喇叭天线的模式转换器  

Mode converter based on corrugated horn antenna

作　　者：刘小明 张帆[2] 甘露[1] 张持健[1] LIU Xiaoming;ZHANG Fan;GAN Lu;ZHANG Chijian(School of Physics and Electronic Information,Anhui Normal University,Wuhu Anhui 241002,China;School of Electronic Communication Engineering,Anhui Xinhua University,Hefei Anhui 230088,China)

机构地区：[1]安徽师范大学物理与电子信息学院,安徽芜湖241002 [2]安徽新华学院电子通信工程学院,安徽合肥230088

出　　处：《太赫兹科学与电子信息学报》2020年第1期103-107,共5页Journal of Terahertz Science and Electronic Information Technology

基　　金：国家自然科学基金资助项目(61871003);安徽省科技攻关项目(1804a09020099);安徽省自然基金项目(1708085QF133);安徽省级质量工程项目(2016jxtd055);安徽新华学院校级重点建设学科项目(zdxk201702);安徽新华学院校级研究所项目(yjs201706)

摘　　要：为提高高功率传输系统的模式转换效率,利用波纹喇叭的设计方法研究了TE11模至HE11模的转换器。设计了基于正弦-平行剖面以及tanh剖面的2种不同结构的模式转换器,并利用商业软件进行仿真验证。仿真结果表明,在94 GHz附近10 GHz的带宽范围内,高斯度可以达到98.6%以上,中心频点的高斯度达到99.2%以上。设计的2种结构中,正弦—平行剖面具有输出束腰半径处于开口处的优点,而tanh剖面具备尺寸小、相位中心固定的优点。The corrugated horn antenna is investigated for the application of TE11 to HE11 mode converter.Two types of structures,i.e.sin-parallel and tanh profile are designed and verified by using commercial software.It is showed that the Gaussainity is more than 98.6%over a bandwidth of 10 GHz centered at 94 GHz.The Gaussianity can reach 99.2%at the central frequency.It is also seen that the beam waist of the sin-parallel type is located at the aperture of the structure.The tanh type bears advantages of a low-profile and stable phase center.

关 键 词：波纹喇叭 模式转换 高斯度 HE11模 TE11模 

分 类 号：TN99[电子电信—信号与信息处理]