加载电磁带隙EBG的双频微带天线  

Dual Band Microstrip Antenna Load with EBG Structure

作　　者：王素玲[1] WANG Suling(Electrical and Mechanical College,Xinxiang University,Xinxiang,453003,China)

机构地区：[1]新乡学院机电工程学院,河南新乡453003

出　　处：《新乡学院学报》2021年第9期44-47,共4页Journal of Xinxiang University

基　　金：国家自然科学基金资助项目(51404101)。

摘　　要：对加载电磁带隙(EBG)结构的微带天线系统进行了仿真,提出了加载EBG的微带天线系统所激发的新的辐射频段,重点研究了加载EBG的微带天线系统的辐射频率的变化。仿真结果表明:当加载EBG与微带天线间距足够小时,将会激发天线系统出现新的辐射频率;EBG的大小将影响新出现的辐射频率,当EBG维度发生变化时,新出现的辐射频率随之发生改变;EBG结构与微带天线的间距会影响新出现的辐射频率,当间距增加时辐射频率随之增加,但是间距增加到一定程度时,频率不再增加,甚至消失。利用EBG结构与微带天线间的耦合效应,设计了双频带微带天线系统,其第一频率取决于EBG与微带天线的耦合,第二辐射频率则主要由微带天线本身的辐射性质决定。A microstrip antennasystemloaded with electromagnetic band gap(EBG) is simulated. The paper supposes that there would be a new radiating band produced by the antenna system. Focused on the radiation frequency a series simulation have been completed. The simulation results show that when the distance between EBG structure and microstrip antenna is small enougha new radiation frequency band will appear in the antenna system. When the EBG dimension changes?the new radiation frequency changes that means the size of EBG will affects the new radiation frequency band.Another factor affecting the new radiation frequency is the distance between the EBG structure and the microstrip antenna.When the distance between the EBG structure and the microstrip antennaincreases, the value of the radiation frequency increases too, however when the distance arrives to a enough value the radiating frequency does not increase with it or even disappear.Based on the simulation proposed a dual band microstrip antenna system is designed. The lower frequency of the antenna system has more relationship with the gap-width between the EBG and the microstrip antenna.?The higher radiation frequency is mainly determined by the radiation properties of the microstrip antenna.

关 键 词：电磁带隙 双频辐射 微带天线 天线增益 

分 类 号：TN925.3[电子电信—通信与信息系统]