Design of a Compact, Wideband, Bidirectional Antenna Using Index-Gradient Patches

被引：15
作者：
Li, Mei [1 ]
Zhang, Yiman [1 ]
Tang, Ming-Chun [1 ]
机构：
[1] Chongqing Univ, Coll Commun Engn, Minist Educ, Key Lab Dependable Serv Comp Cyber Phys Soc, Chongqing 400044, Peoples R China
来源：
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2018年 / 17卷 / 07期
基金：
中国国家自然科学基金;
关键词：
Broadband antenna; dipole; endfire antennas; index-gradient patches; surface-wave (SW) antenna; RESONATOR ISR STRUCTURES; GAIN ENHANCEMENT; ENDFIRE ANTENNA; SURFACE-WAVES; GROUND PLANE; DIPOLE; RADIATION; ARRAY;
D O I：
10.1109/LAWP.2018.2839900
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：
A planar, compact, wideband, bidirectional antenna based on the index-gradient patches is proposed. In this design, a printed dipole is utilized as the launcher element, and a metasurface containing both linearly index-modulated patches and index-fixed patches is employed for both bandwidth enhancement and gain improvement. The overall dimensions are 1.35 lambda(0) x 0.79 lambda(0) x 0.01 lambda(0), where lambda(0) corresponds to the center frequency f(0) = 3.75 GHz within the entire operation bandwidth from 1.85 to 5.65 GHz. Simulated results, verified by the measured values, show that the proposed metasurface-based antenna maintains stable bidirectional endfire radiation performance with the maximum gain of 7.32 dBi over an ultrabroad bandwidth as high as 101.3%, which would be quite suitable for the applications in the wireless coverage in long and narrow path service areas.
引用
收藏
页码：1218 / 1222
页数：5
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