基于异向介质的高增益圆极化微带天线的设计  

The design of high-gain circularly polarized microstrip antenna based on metamaterial

作　　者：郭榕[1] 翁子彬[1] 焦永昌[1] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室,西安710071

出　　处：《空间电子技术》2007年第4期46-49,共4页Space Electronic Technology

摘　　要：文章提出一种基于人工异向介质(metamaterials)覆层的高增益圆极化微带天线。采用商业软件AnsoftHFSS对该天线的电特性进行了仿真。仿真结果表明,人工异向介质覆层将普通的圆极化微带天线增益从7.8dB增加到了11.4dB,同时保持了良好的圆极化特性,并且该天线具有结构简单、易于加工等特点。In this paper, a high-gain antenna structure composed of a circularly polarized microstrip antenna and a metamaterial cover is presented. This antenna is simulated by Ansoft HFSS simulation software. The simulated results demonstrate that the metamaterial cover increases the gain of the plain circularly polarized microstrip antenna from 7.8dB to 11.4dB, meanwhile the circular polarization characteristic is maintained, and this antenna is of simple structure and easy to be fabricated.

关 键 词：异向介质 覆层 圆极化 微带天线 

分 类 号：TN822.4[电子电信—信息与通信工程]