具有3.4/5.5 GHz双阻带特性的单极子超宽带天线

›› 2011, Vol. 24 ›› Issue (4): 67-.

具有3.4/5.5 GHz双阻带特性的单极子超宽带天线

解俊,龚书喜,赵青,张磊

(西安电子科技大学天线与微波技术国家重点实验室,陕西西安 710071)

出版日期:2011-04-15 发布日期:2011-03-31
作者简介:解俊(1984-),男,硕士研究生。研究方向:天线设计,宽频带技术与方法。龚书喜(1957-),男,教授,博士生导师。研究方向:电磁散射与隐身技术,电磁计算。

A Circular Disc Monopole UWB Antenna with the 3.4/5.5 GHz Dual Band-notched Characteristic

JIE Jun, GONG Shu-Xi, ZHAO Qing, ZHANG Lei

(National Key Laboratory of Antennas and Microwave Technology,Xidian University,Xi'an 710071,China)

Online:2011-04-15 Published:2011-03-31

摘要/Abstract

摘要：

设计了一款微带馈电的具有3.4/5.5 GHz双阻带特性的圆盘单极子天线。由于采用具有缺陷结构的地板,天线具有良好的阻抗特性。在2.38~15 GHz的频带内电压驻波比VSWR≤2,可以同时覆盖WLAN(2.4 GHz)和UWB(3.1~10.6 GHz)。同时引入双矩形谐振槽,实现在WiMAX(3.4 GHz)和WLAN(5.2/5.8 GHz)的双阻带。仿真结果和实验结果匹配良好,具有一定的实用价值。

关键词: 超宽带;双阻带;单极子

Abstract:

A novel compact printed circular disc monopole antenna with the 3.4/5.5 GHz dual band-notched characteristic fed by micro-strip line is proposed and fabricated.Owing to the use of a defected ground structure,the antenna has a better impedance matching.The voltage standing wave ratio (VSWR) is less than 2 in the band of 2.38~15 GHz.Thus,both the WLAN (2.4 GHz) and UWB band are covered.To obtain the dual band notched function in the 3.4 GHz WiMAX band and 5.2/5.8 GHz WLAN band respectively,double rectangular slots,which are similar to split-ring resonator(SRR),are etched on the circular disc.A good agreement is achieved between the simulation and the experiment.The antenna proposed has some practical value.

Key words: UWB;dual band-notched;monopole

中图分类号:

TN821+.3

解俊, 龚书喜, 赵青, 张磊. 具有3.4/5.5 GHz双阻带特性的单极子超宽带天线[J]. , 2011, 24(4): 67-.

JIE Jun, GONG Shu-Xi, ZHAO Qing, ZHANG Lei. A Circular Disc Monopole UWB Antenna with the 3.4/5.5 GHz Dual Band-notched Characteristic[J]. , 2011, 24(4): 67-.

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