Circularly-polarised cavity-backed wearable antenna in SIW technology

被引：29

作者：

Moro, Riccardo ^{[1
]}

Agneessens, Sam ^{[2
]}

Rogier, Hendrik ^{[2
]}

Bozzi, Maurizio ^{[1
]}

机构：

[1] Univ Pavia, Dept Elect Comp & Biomed Engn, Pavia, Italy

[2] Univ Ghent, Dept Informat Technol, Ghent, Belgium

来源：

IET MICROWAVES ANTENNAS & PROPAGATION | 2018年 / 12卷 / 01期

关键词：

wearable antennas; waveguide antennas; substrate integrated waveguides; UHF antennas; anechoic chambers (electromagnetic); circularly-polarised cavity-backed wearable antenna; substrate-integrated waveguide antenna; SIW antenna; textile substrate; industrial-scientific-medical frequency band; antenna topology; folded cavity; annular ring; radiating element; body-centric applications; electromagnetic performance; anechoic chamber; frequency; 2; 45; GHz; TEXTILE ANTENNA; SUBSTRATE;

D O I：

10.1049/iet-map.2017.0271

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：

This study presents a circularly-polarised substrate-integrated waveguide (SIW) antenna implemented using a textile substrate and operating at 2.45GHz, in the industrial, scientific, and medical frequency band. The antenna topology is based on a folded cavity with an annular ring as a radiating element, and it permits to obtain compact size and low sensitivity to the environment, without deteriorating the radiating performance. These characteristics, together with the choice of adopting a textile substrate, make the SIW antenna suitable for the integration in wearable systems for body-centric applications. The electromagnetic performance of the proposed antenna achieved in simulations was verified through the measurement of the device in an anechoic chamber. The circularly-polarised antenna exhibits a maximum gain of 6.5dBi, a radiation efficiency of 73% and a very high front-to-back ratio.

引用

页码：127 / 131

页数：5

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