A Wideband Circularly Polarized Jeans-Based Antenna at 2.45 GHz
Open Access
- 1 January 2020
- journal article
- research article
- Published by Scientific Research Publishing, Inc. in Open Journal of Antennas and Propagation
- Vol. 08 (01), 1-18
- https://doi.org/10.4236/ojapr.2020.81001
Abstract
Development of textile antennas is an important segment towards the goal of creating smart clothing. In this paper, we report on a jeans-based circularly polarized textile antenna designed for the E-band (around 2.45 GHz). We present three variations of the design and the respective results. The antenna comprises a multi-layer jeans-fabric as the substrate, a conductive fabric as the patch, which is concealed with another layer of jeans, and the ground plane is formed by either a cooper foil or another conductive fabric. A multi-layer structure was chosen to provide a wider bandwidth and better efficiency, whereas the upper surface of the antenna was covered by one more layer of jeans to both make the antenna less conspicuous, when worn on the arm, and protect the patch and substrate from mechanical damages and moisture. All three variants are characterized by a good realized gain of about 3 dB, a wide beam width and a wide bandwidth of 21% or better, around 2.45 GHz, having the radiation efficiency around 36%, and front-to-back ratio of 5 dB or better, with the ground plane being just slightly larger than the patch.Keywords
This publication has 17 references indexed in Scilit:
- SAR impact evaluation on jeans wearable antennasPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2017
- Smart TextilesPublished by Springer Science and Business Media LLC ,2017
- Wearable GPS patch antenna on jeans fabricPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2016
- Dual-Band Dual-Mode Textile Antenna on PDMS Substrate for Body-Centric CommunicationsIEEE Antennas and Wireless Propagation Letters, 2016
- Design of a flexible antenna using printed silver loaded epoxy on PDMS/plastic substrate for wearable applicationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2016
- Soft and flexible antennas on permittivity adjustable PDMS substratesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2012
- Determination of Dielectric Constant of Fabric Materials and Their Use as Substrates for Design and Development of Antennas for Wearable ApplicationsIEEE Transactions on Instrumentation and Measurement, 2010
- Design of probe-fed circularly-polarized rectangular-patch thick microstrip antenna revisitedPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2010
- Design and Characterization of Purely Textile Patch AntennasIEEE Transactions on Advanced Packaging, 2006
- Microstrip antennasProceedings of the IEEE, 1992