基于新型EBG结构的微带天线小型化设计

Design of Miniaturized Microstrip Antenna Using Novel Electromagnetic Bandgap Structures

本文利用电磁带隙结构的慢波特性,设计了一种构造简单的小型化微带天线。把"#"型EBG结构连接在接地板上,采用50Ω微带线馈电,减小了慢波波长,增大天线电尺寸。仿真结果表明,天线工作在1.89GHz,相比于传统金属接地板天线,该天线中心频率减小0.57GHz,更好实现小型化的目的。。

A miniaturized microstrip antenna is proposed by using the slow-wave characteristics of electromagnetic bandgap structures.The"#"shapes electromagnetic bandgap structures connected to the ground plane with50Ωmicrostrip feed line,reducing the slow-wave wavelength,increasing the relative electrical dimension of the antenna.The simulation results show that this antenna at1.89GHz,compared with traditional metal ground plane antenna,this antenna center frequency reduced by0.57GHz,and the miniaturization is achieved.