文献类型：期刊文献

中文题名：加载电磁带隙反射板的偶极天线系统的阻抗特性

英文题名：Impedance characteristic of dipole antenna with reflection board of electromagnetic bandgap

作者：王素玲[1,2];杨晓策[1]

第一作者：王素玲

机构：[1]新乡学院机电工程学院;[2]河南理工大学电气与自动化工程学院

第一机构：新乡学院机电工程学院

年份：2017

卷号：36

期号：9

起止页码：10-14

中文期刊名：电子元件与材料

外文期刊名：Electronic Components and Materials

收录：CSTPCD;;CSCD:【CSCD_E2017_2018】；

基金：国家自然科学基金资助项目(No.51404101)

语种：中文

中文关键词：电磁带隙;阻抗匹配;偶极天线;同位相反射;架设高度;谐振

外文关键词：electromagnetic bandgap; impedance match; dipole antenna; in-phase reflection; erection height;resonance

摘要：对加载电磁带隙(EBG)反射板的偶极天线系统进行了仿真,重点研究了偶极天线系统的输入阻抗与EBG反射板架设高度的关系。仿真结果表明,当架设高度变化时天线的输入阻抗随之发生改变,即输入阻抗实部和虚部均随着高度的变化而变化。虽然输入阻抗的实部R随着架设高度的变化而变化,但其取值总是大于零,表明天线辐射是消耗电磁能量;而天线输入阻抗的虚部则表现出可正可负,表明当电磁带隙反射板的架设高度不同时,天线系统即可以呈现容性也可以是感性;当架设高度合适时,电磁带隙反射板将发生谐振,天线输入阻抗的虚部为零,天线辐射电磁波最为有效。
The simulation of the dipole antenna system with the electromagnetic bandgap(EBG)was implemented and it was focused on the input-impedance of dipole antenna system especially on the relationship between the input-impedance and the height between the dipole antenna and the EBG reflector board plane.The simulation results show that the input-impedance of antenna system changes with the height between the dipole antenna and the EBG board.Although the real part R of the input-impedance varies with the height,its value is always greater than zero,which means the antenna radiation consumes the electromagnetic energy.The imaginary part of the input impedance of the antenna can be positive or negative,which shows that when the height of electromagnetic bandgap changes,the antenna system can present capacity or inductivity.The electromagnetic bandgap reflection plate resonance occurs at appropriate height,the imaginary part of the input impedance of the antenna is zero and the antenna can effectively radiate electromagnetic waves.