一种双层宽频微带天线的设计  

Design of Double-layer Patch Broadband Microstrip Antenna

作　　者：杨虹[1] 牟洪江[1] 王玲 

机构地区：[1]重庆邮电大学光电工程学院,重庆400065 [2]重庆信息技术学院,重庆404000

出　　处：《电视技术》2014年第19期143-145,149,共4页Video Engineering

基　　金：重庆市教委科学技术研究项目(KJ100512);重庆市自然科学基金项目(CSTC;2010DD2412)

摘　　要：提出一种紧凑型双层微带天线,在贴片上开“十”形缝隙来实现天线的双频带,通过加载短路探针和接地板挖槽的方法降低天线的谐振频率,提高带宽和实现小型化.利用电磁仿真软件HFSS 13.0对天线进行了仿真,仿真结果表明,该天线在回波损耗小于-10.0 dB时,天线工作频段为2.38～ 2.77 GHz,带宽约为390 MHz,天线的相对带宽为15.15％,天线的尺寸相对于普通微带天线降低了65.41％,该天线的带宽有很大的提高,且结构简单易实现,可用于无线通信系统中.A compact double microstrip antenna is proposed in this paper, and multi-frequency is realized by a cross -shaped slotted in the patch, which loaded with a single shorted-post and slotted in the ground plate can reduce resonance frequency, increase bandwidth and realize miniaturization. Numerical simulations are performed for the antenna with the software HFSS 13.0, the simulation resuhs shown that the antenna operated at 2.38 -2.77 GHz when the return loss S11 〈-10 dB, the bandwidth is about 390 MHz and the relative bandwidth of is 15.15% which is greatly im- proved, the size reduces 65.41% compared to general microstrip antenna, and the antenna structure which is simple and easily to be implemented can be used in RF communication.

关 键 词：宽频 微带天线 小型化 “十”形缝隙 

分 类 号：TN826[电子电信—信息与通信工程]