CAJ | 학술논문

设计了一种应用于工作频率为2.6GHz的双单元多输入多输出（MIMO）天线的新型电磁带隙结构（EBG）。本文基于传统的蘑菇状结构，将贴片改进为螺旋状，调整偏移了过孔圆柱位置，并采用了电磁带隙结构单元的整体倒“T”形状布局。过孔的位置以及结构单元的间隔基于HFSS电磁仿真软件进行了优化，使新的结构在对天线系统传输特性影响很低的情况下更好的减小两个天线单元之间的耦合干扰。
설계료일충응용우공작빈솔위2.6GHz적쌍단원다수입다수출（MIMO）천선적신형전자대극결구（EBG）。본문기우전통적마고상결구，장첩편개진위라선상，조정편이료과공원주위치，병채용료전자대극결구단원적정체도“T”형상포국。과공적위치이급결구단원적간격기우HFSS전자방진연건진행료우화，사신적결구재대천선계통전수특성영향흔저적정황하경호적감소량개천선단원지간적우합간우。
The paper presents a new kind of electromagnetic band gap structure for a 2.6 GHz MIMO antenna system. The structure has the unique shape of the patch, the inverted T shape layout of the structure unit cells, and the change of metal cylinder position. The cylinder’s position is optimized in the HFSS software, and the simulated results shows that the mutual coupling is largely improved with the S21parameter from -24dB to -32dB. The return loss and the radiation characteristic still remain in a reasonable level. So the EBG structures are effective and reliable for the MIMO antenna system.