Bandwidth Optimization of a Textile PIFA with DGS Using Characteristic Mode Analysis

被引：7
作者：
Elias, Bashar Bahaa Qas [1 ,2 ]
Soh, Ping Jack [1 ,3 ]
Al-Hadi, Azremi Abdullah [1 ]
Akkaraekthalin, Prayoot [4 ]
Vandenbosch, Guy A. E. [3 ]
机构：
[1] Univ Malaysia Perlis, Fac Elect Engn Technol, Adv Commun Engn Ace CoE, Pauh Putra Campus, Arau 02600, Malaysia
[2] Imam Jaafar Sadiq Univ, Dept Commun Engn Tech, Baghdad 10052, Iraq
[3] Katholieke Univ Leuven, ESAT WAVECORE Res Div, Kasteelpk Arenberg 10, B-3001 Leuven, Belgium
[4] King Mongkuts Univ Technol North Bangkok KMUTNB, Fac Engn, Dept Elect & Comp Engn, 1518 Pracharat 1 Rd, Bangkok 10800, Thailand
来源：
SENSORS | 2021年 / 21卷 / 07期
关键词：
planar antennas; characteristic mode analysis; defected ground structure; ANTENNA;
D O I：
10.3390/s21072516
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
This work presents the design and optimization of an antenna with defected ground structure (DGS) using characteristic mode analysis (CMA) to enhance bandwidth. This DGS is integrated with a rectangular patch with circular meandered rings (RPCMR) in a wearable format fully using textiles for wireless body area network (WBAN) application. For this integration process, both CMA and the method of moments (MoM) were applied using the same electromagnetic simulation software. This work characterizes and estimates the final shape and dimensions of the DGS using the CMA method, aimed at enhancing antenna bandwidth. The optimization of the dimensions and shape of the DGS is simplified, as the influence of the substrates and excitation is first excluded. This optimizes the required time and resources in the design process, in contrast to the conventional optimization approaches made using full wave "trial and error" simulations on a complete antenna structure. To validate the performance of the antenna on the body, the specific absorption rate is studied. Simulated and measured results indicate that the proposed antenna meets the requirements of wideband on-body operation.
引用
收藏
页数：17
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