Dual-Band Loop-Dipole Composite Unidirectional Antenna for Broadband Wireless Communications

被引：44

作者：

Lu, Wen-Jun ^{[1
,2
]}

Liu, Gui-Mei ^{[1
]}

Tong, Kin Fai ^{[3
]}

Zhu, Hong-Bo ^{[1
]}

机构：

[1] Nanjing Univ Posts & Telecommun, Jiangsu Key Lab Wireless Commun, Nanjing 210003, Jiangsu, Peoples R China

[2] State Key Lab Millimeter Waves, Nanjing, Jiangsu, Peoples R China

[3] UCL, Dept EEE, London WC1E 6BT, England

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2014年 / 62卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Dual-band antenna; loop-dipole composite antenna; unidirectional antenna; VIVALDI ANTENNA; PATCH ANTENNA; IMPEDANCE;

D O I：

10.1109/TAP.2014.2307343

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The design of a novel dual-band loop-dipole composite unidirectional antenna for broadband wireless applications is proposed. First, design guidelines of the antenna are presented, and then, a step-by-step derivation of the antenna geometry is drawn. The antenna's operation principle is analyzed by carrying out parametric studies of surface current distribution, impedance and radiation patterns. The reflection coefficient, radiation patterns and gain of the antenna are numerically and experimentally studied to verify the operation principle and the design approach. It is demonstrated that two pass-bands, from 1.54 to 3.24 and from 4.88 to 6.80 GHz, of reflection coefficient smaller than -10 dB are obtained. The antenna has stable and unidirectional radiation pattern with low cross polarization within its pass-bands. The average gain of the antenna is 6.7 dBi at low frequency band and 6.5 dBi at high frequency band.

引用

页码：2860 / 2866

页数：8

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