一种h形缝隙多频微带天线设计  

Design of a Multi-Band h-shaped Slot Microstrip Antenna

作　　者：杨虹[1] 陈川江[1] 

机构地区：[1]重庆邮电大学光电工程学院,重庆400065

出　　处：《压电与声光》2012年第6期928-931,共4页Piezoelectrics & Acoustooptics

基　　金：重庆市教委科学技术研究基金资助项目(KJ100512);重庆市自然科学基金资助项目(CSTC 2010BB2412)

摘　　要：通过对传统缝隙微带天线的分析,提出了一种h形缝隙微带天线。该天线具有多频带、小型化等特点,通过加载短路探针和在接地板挖槽的方法降低了天线的谐振频率,提高了带宽。利用基于有限元法的电磁仿真软件HFSS11.0对天线的特性进行了仿真,仿真结果表明,该天线在回波损耗S11<-10dB时,其工作频段为2.38～2.79GHz,4.59～4.75GHz和5.12～5.90GHz,尺寸比普通微带天线降低了62.43%,从而验证了这种设计方案的有效性。该天线结构简单易于实现,能够满足无线局域网802.11a/b/g/n移动终端内置天线的多频带和小型化的要求。A multi-band h-shaped slot microstrip antenna has been proposed based on analyzing the conventional slot microstrip antenna. The proposed antenna has the features of multi-band and miniaturization. The resonance frequency can be reduced and the bandwidth can be increased by being loaded a single shorted-post and being slotted in the ground plate. The characteristics of the antenna have been simulated by using HFSSll. 0 software based on the finite element method （FEM）. The simulation results showed that the antenna operated at 2.38-2.79 GHz, 4.59-4.75 GHz and 5.12-5.90 GHz when the return loss S11 was less than -10 dB, the size reduced 62.43% compared to the general microstrip antenna, demonstrated the effectiveness of the design scheme. The antenna structure is simple and easily to be implemented, met the wireless LAN 802. 11a/b/g/n mobile terminal antenna miniaturization and multi-band requirements.

关 键 词：h形缝隙 多频 微带天线 宽频 小型化 

分 类 号：TN826[电子电信—信息与通信工程]