单极天线
导线
地平面
比吸收率
天线(收音机)
偶极子天线
共面波导
平面的
电气工程
多波段设备
ISM波段
光电子学
物理
光学
材料科学
计算机科学
电信
工程类
微波食品加热
计算机图形学(图像)
复合材料
作者
Sarosh Ahmad,Kashif Nisar Paracha,Yawar Ali Sheikh,Adnan Ghaffar,A. D. Butt,Mohammad Alibakhshikenari,Ping Jack Soh,Salahuddin Khan,Francisco Falcone
出处
期刊:IEEE Access
[Institute of Electrical and Electronics Engineers]
日期:2021-11-23
卷期号:9: 159598-159615
被引量:19
标识
DOI:10.1109/access.2021.3130425
摘要
In this article, a compact printed monopole dual-band antenna using artificial magnetic conductor (AMC)-plane with improved gain and broader bandwidth, applicable for off-body internet of things (IoT) devices is presented. The monopole antenna consists of two C-shaped resonators connected through a U-shaped monopole, parasitic elements, discrete ground circular rings and a co-planar waveguide (CPW) feedline. Each artificial magnetic conductor (AMC) unit cell consists of a slotted circular and a square stubs, designed with two zero-crossing phases for improving the radiation characteristics and to achieve the high gain. The overall size of the proposed AMC-backed antenna is 44.4 mm × 44.4 mm × 1.6 mm with electrical dimensions of 0.75λg×0.75λg×0.027λg. This AMC-backed antenna featured measured bandwidths of 9.6% and 12.4% with improved measured gain values of 4.88 dB and 4.73 dB at 2.45 GHz and 5.8 GHz, respectively. The specific absorption rate (SAR) values are analysed and found to be 1.58 W/kg at 2.45 GHz and 0.9 W/kg at 5.8 GHz. Therefore, the proposed AMC-backed antenna is useful for off-body IoT devices operating at 2.45 and 5.8 GHz industrial, scientific, and medical (ISM) band applications.
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