A Compact and Low-Profile MIMO Antenna Using a Miniature Circular High-Impedance Surface for Wearable Applications

被引：95

作者：

Wen, Dingliang ^{[1
]}

Hao, Yang ^{[1
]}

Munoz, Max O. ^{[1
]}

Wang, Hanyang ^{[2
]}

Zhou, Hai ^{[2
]}

机构：

[1] Queen Mary Univ London, Sch Elect Engn & Comp Sci, London E1 4NS, England

[2] Huawei Technol UK Co Ltd, Reading RG2 6UF, Berks, England

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2018年 / 66卷 / 01期

基金：

英国工程与自然科学研究理事会;

关键词：

Characteristic modes (CMs); compact antenna; high-impedance surface (HIS); low-profile antenna; multi-in multi-out (MIMO) antenna; wearable antenna; wireless local area network; CHARACTERISTIC MODES; DIVERSITY; GAIN; REFLECTOR; SYSTEMS; DESIGN;

D O I：

10.1109/TAP.2017.2773465

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 new miniature circular high-impedance surface (HIS) is used to design a compact and low-profile multi-in multi-out (MIMO) antenna for wearable applications. The antenna is designed to operate from 2.4 to 2.49 GHz for wireless local area network application. By employing a pair of degenerated characteristic modes of a circular loop antenna, the MIMO antenna can achieve a good port-to-port isolation (>15 dB) without increasing its geometric size. A four-element HIS is chosen to match the antenna profile, and a 2 dBi antenna gain improvement is observed. The design was optimized considering the effect of packaging and then a prototype with the optimal parameters was fabricated and tested. Measurement results are in good agreement with simulation results. Furthermore, the loading effect due to lossy human tissue is also considered and the results show that the antenna has a robust performance against the human phantom and a low specific absorption rate can also be obtained.

引用

页码：96 / 104

页数：9

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