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Design and characterization of purely textile patch antennas

Research output: Contribution to journalArticle

  • I Locher
  • M Klemm
  • T Kirstein
  • G Troester
Original languageEnglish
Pages777 - 788
Number of pages12
JournalIEEE Transactions on Advanced Packaging
Journal publication dateNov 2006
Volume29
Journal issue4
DOIs
StatePublished

Abstract

In this paper, we present four purely textile patch antennas for Bluetooth applications in wearable computing using the frequency range around 2.4 GHz. The textile materials and the planar antenna shape provide a smooth integration into clothing while preserving the typical properties of textiles. The four antennas differ in the deployed materials and in the antenna polarization, but all of them feature a microstrip line as antenna feed. We have developed a manufacturing process that guarantees unaffected electrical behavior of the individual materials when composed to an antenna. Thus, the conductive textiles possess a sheet resistance of less than 1Omega/squarein order to keep losses at a minimum. The process also satisfies our requirements in terms of accuracy meeting the Bluetooth specifications. Our investigations not only characterize the performance of the antennas in planar shape, but also under defined bending conditions that resemble those of a worn garment. We show that the antennas can withstand clothing bends down to a radius of 37.5 mm without violating specifications

Additional information

Publisher: IEEE Rose publication type: Journal article Terms of use: Copyright © 2006 IEEE. Reprinted from IEEE Transactions on Advanced Packaging. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Bristol's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

Research areas

  • fabric antennas, conductive textiles, fabric substrates, wearable computing

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