Investigation on CPW Koch Antenna Durability for Microwave Imaging
In this paper,the investigation on the durability of Coplanar Waveguide(CPW)Koch antenna is presented.Increasing demands in the use of flexible antenna makes the fabric material being concerned.This antenna is made of fully fabric material.The radiating element is made of pure copper fabric and patched onto a denim jean substrate with relative permittivity,εr≈2.3.The antenna is measured on the conditions of crumpled,ironed,wetted,washed,and dried for durability investigation.It produces very well performance results for all conditions except after it is washed.In washed condition,the return loss value decreases to -7.83dB.It is due to the high water content in the substrate which is influencing the originality of the substrates permittivity value.Thus,it leads to the decreases of antennas performance.However,the return loss value is still accepted for the fabric based antenna in wideband applications.Therefore,the durability of the antenna to maintain its wideband frequency characteristic in various conditions makes it has high potential to be implemented into microwave imaging application.
R.Yahya M.R.Kamarudin N.Seman M.I.Sabran M.F.Jamlos
Department of Communication Engineering,Faculty of Electrical and Electronic Engineering Universiti Wireless Communication Center(WCC)Universiti Teknologi Malaysia(UTM),Skudai,Johor Bahru,Johor 81310, Advanced Communication Engineering Center(ACE)School of Computer and Communication Engineering Unive
国际会议
Progress in Electromagnetics Research Symposium 2013(2013年电磁学研究新进展学术研讨会)
台北
英文
498-501
2013-03-01（万方平台首次上网日期，不代表论文的发表时间）