Compact highly integrated wide-tunable unidirectional dual-band patch antenna for wireless applications

被引：3
作者：
Boukarkar, Abdelheq [1 ]
Lin, Xian Qi [1 ]
Jiang, Yuan [1 ]
Yu, Yi Qiang [1 ]
机构：
[1] Univ Elect Sci & Technol China, Sch Elect Engn, Chengdu 611731, Sichuan, Peoples R China
来源：
IET MICROWAVES ANTENNAS & PROPAGATION | 2017年 / 11卷 / 15期
关键词：
multifrequency antennas; microstrip antennas; radiocommunication; antenna radiation patterns; compact highly integrated wide-tunable antenna; unidirectional dual-band patch antenna; wireless applications; frequency agility; varactor diodes; radiating patch; antenna miniaturisation; metallised vias; unidirectional radiation patterns; simple direct current bias circuit; frequency; 2; 4 GHz to 3; 18; GHz; 4; 1 GHz to 5; 45; MONOPOLE ANTENNA; MICROSTRIP;
D O I：
10.1049/iet-map.2017.0662
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 compact dual-band patch antenna with independent tuning of both frequencies is introduced. The frequency agility is achieved by inserting two varactor diodes into the radiating patch, while the antenna miniaturisation is realised by shorting one patch edge using metallised vias. Simulated and measured results are in good agreement. Measurements reveal that the two operating bands can be tuned separately without any frequency shifting and with high stability and similar unidirectional radiation patterns during the tuning process. The measured tunable ranges of the lower and upper bands are 27.95% (from 2.4 to 3.18GHz) and 28.27% (from 4.1 to 5.45GHz), with measured peak gains and efficiencies of [3.23dBi, 65%] and [3.42dBi, 62%], respectively. The antenna presents comparatively wide tuning ranges with similar unidirectional radiation patterns, has a miniaturised size, and uses a simple direct current bias circuit. Thus, it can be easily integrated and used in different wireless systems.
引用
收藏
页码：2194 / 2200
页数：7
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