Left-Handed Characteristics Tunable C-Shaped Varactor Loaded Textile Metamaterial for Microwave Applications  

作　　者：Samir Salem Al-Bawri Mohammad Tariqul Islam Kabir Hossain Thennarasan Sabapathy Muzammil Jusoh 

机构地区：[1]Space Science Centre,Climate Change Institute,Universiti Kebangsaan Malaysia,Bangi,43600,Malaysia [2]Department of Electrical,Electronic and Systems Engineering,Faculty of Engineering and Built Environment,Universiti Kebangsaan Malaysia,UKM,Bangi,43600,Selangor,Malaysia [3]Advanced Communication Engineering(ACE),Centre of Excellence,Universiti Malaysia Perlis(UniMAP),Perlis,Malaysia [4]Faculty of Electronic Engineering Technology,Universiti Malaysia Perlis(UniMAP),Perlis,Malaysia

出　　处：《Computers, Materials & Continua》2022年第4期611-628,共18页计算机、材料和连续体（英文）

基　　金：This work is supported by the Universiti Kebangsaan Malaysia Research Grant under Grant Number.GUP-2020-017.

摘　　要：This paper presents a textile-based C-shaped split-ring resonators(SRR)metamaterial(MTM)unit cells with an electrical tunability function.The proposed MTM was composed of two symmetrical C-shaped SRR combined with a central diagonal metal bar,whereas the RF varactor diode is placed on the backside of the splitted ground plane.Stopband behavior of single and array MTM unit cells were analyzed while the achieved negative index physical characteristics were widely studies.Though four different MTM arrays(i.e.,1×1,1×2,2×1,and 2×2)were analyzed in simulation,a 2×2-unit cell array was chosen to fabricate,and it was further undergone experimental validation.This proposed tunable MTM exhibits double negative(DNG)/left-handed properties with an average bandwidth of more than 2.8 GHz.Furthermore,attainable negative permittivity and negative permeability are within 2.66 to 9.59 GHz and within 2.77 to 15 GHz,respectively,at the frequency of interest(between 1 and 15 GHz).Moreover,the proposed tunable MTM also showed tunable transmission coefficient characteristics.The proposed electrically tunable textile MTM might function in a dynamic mode,making it suitable for a variety of microwave-wearable applications.A satisfactory agreement between simulations and experiments were achieved,demonstrating that the proposed MTM can operate over a wide bandwidth.

关 键 词：Textile metamaterial METAMATERIAL wearable antennas tunable metamaterials metasurface ANTENNAS DNG metamaterials 

分 类 号：TN015[电子电信—物理电子学]