基于多模滤波器概念的宽带天线设计  

Design of broadband antenna based on the concept of multi-mode filter

作　　者：褚庆昕[1] 罗宇[1] 郑东泽[1] 吴锐[1] CHU Qingxin;LUO Yu;ZHENG Dongze;WU Rui(South China University of Technology,Guangzhou 510640,China)

机构地区：[1]华南理工大学,广州510640

出　　处：《电波科学学报》2018年第4期373-379,共7页Chinese Journal of Radio Science

基　　金：国家自然科学基金(61671207)

摘　　要：提出了一种基于多模滤波器概念的宽带天线设计方法.多模宽带滤波器的研究已有多年的历史.本质上讲,谐振天线的辐射单元也是谐振器,同样存在着多个模式.因此,多模滤波器的概念和方法完全可以应用于宽带谐振天线的设计.文中给出了所提出的多模宽带天线的原理,并通过支节加载偶极子演示了典型的设计方法.仿真和测试结果表明,所设计的天线在几乎不影响尺寸的情况下有效地实现了宽带特性.A design method of broadband antennas based on the concept of multi-mode filters is pro- posed. The multi-mode broadband filters have been researched for many years. In fact, the radiation ele- ment of a resonant antenna is also a resonator, and also has multiple modes. Therefore, the concept and design method of multi-mode filters can be applied to design broadband resonant antennas. In this paper, the principle of multi-mode broadband antennas is presented, and the typical design method is demonstra- ted by stub-loaded dipole. The simulation and measurement results show that the bandwidths of the de- signed antennas are enhanced with the same sizes.

关 键 词：多模 宽带天线 谐振天线 支节加载偶极子 多模滤波器 

分 类 号：TN822.8[电子电信—信息与通信工程]