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Antenna Miniaturization Using Flexible PBG Materials

[+] Author Affiliations
Pekka Salonen, Lauri Sydänheimo, Mikko Keskilammi

Tampere University of Technology, Tampere, Finland

Paper No. IPACK2003-35010, pp. 1-5; 5 pages
doi:10.1115/IPACK2003-35010
From:
  • ASME 2003 International Electronic Packaging Technical Conference and Exhibition
  • 2003 International Electronic Packaging Technical Conference and Exhibition, Volume 2
  • Maui, Hawaii, USA, July 6–11, 2003
  • Conference Sponsors: Electronic and Photonic Packaging Division
  • ISBN: 0-7918-3690-8 | eISBN: 0-7918-3674-6
  • Copyright © 2003 by ASME

abstract

Antennas play a paramount role today’s communication centered market place. Recently the demands for miniaturization of electronic devices have increased rapidly in which a miniaturization of integrated antennas has confronted the same development. However, antennas and especially the performance parameters of antennas obey physical laws in which the electrical dimensions of an antenna have a major effect on these parameters such as voltage standing wave ratio (SWR) and radiation efficiency. Recently, a new, multidisciplinary field of study called “Electromagnetic BandGap” (EBG) structures have been developed. An EBG structure forms a lattice whose period determines its resonant frequency i.e. the range of frequencies where the stop band exists for transmission of microwave signals. Antennas physical dimensions can be made noticeably smaller applying EBG materials. These advantages of EBG structures allow us to design smaller antennas with high radiation efficiency on high-dielectric substrates such as ceramics. This paper presents how conventional microstrip antennas can be miniaturized using EBG materials with improved performance parameters. In addition, a novel flexible antenna is presented which can be rolled up during e.g. transportation.

Copyright © 2003 by ASME

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