基于电磁带隙结构的微带天线小型化设计  

Design of Miniaturized Microstrip Antenna Using Electromagnetic Bandgap Structures

作　　者：曹召焕[1] 邢锋[1] 雷雪[1] 尚济勇[1] 

机构地区：[1]信息工程大学信息工程学院,郑州450002

出　　处：《现代雷达》2012年第7期51-54,共4页Modern Radar

摘　　要：提出了一种确定电磁带隙结构慢波波长的分析方法,利用电磁带隙结构支持慢波传播的特性,设计了一种小型化微带天线。以"*"型电磁带隙结构作为接地板,增大了天线的相对电长度。天线工作于2 GHz,相对带宽为2.57%,最大增益为5.45 dB,相比于传统天线,该天线的尺寸减小了40%,带宽有了一定的提高。最后,进行了天线的实物制作和测试,天线的实测结果和仿真结果吻合良好。A method to make sure wavelength of slow-wave mode of electromagnetic bandgap structures is proposed in this paper. A kind of miniaturized microstrip antenna is designed using the characteristic that electromagnetic bandgap structures support slow- wave propagation. ＂＊＂ shapes electromagnetic bandgap structures are used as ground plane to increase relative electrical length. This antenna works at 2 GHz, relative bandwidth is 2.57 %and maximum gain is 5.45 dB, compared with conventional antenna, its area has reduced 40 %, and its relative bandwidth is improved . The antenna had been fabricated and measured, measured re- sult and simulated result agree very well.

关 键 词：电磁带隙结构 小型化 慢波 

分 类 号：TN822[电子电信—信息与通信工程]