Research Output

Internal triple-band folded planar antenna design for third generation mobile handsets

  A novel internal triple-band folded planar antenna for mobile handsets is introduced, formed by modifying the geometry of a rectangular patch antenna to include a shorting pin, folded sides, a shorted microstrip stub and a notch. The size of the antenna is successfully reduced to a volume of 34 x 34 x 7 mm³. The antenna is mounted on a finite ground plane of 50 x 100 mm². The impedance bandwidth achieved was 29.7% (equivalent to return loss 210 dB); this covers the DCS1800, PCS1900 and UMTS 2000 bands. The characteristics of the proposed antenna, including impedance bandwidth and far field radiation patterns are discussed theoretically and experimentally; the simulated and measured results show good agreement. The tuning effects of the geometry parameters on impedance matching of the proposed antenna are also investigated.

  • Type:


  • Date:

    01 October 2008

  • Publication Status:


  • Publisher

    Institution of Engineering and Technology (IET)

  • DOI:


  • ISSN:


  • Library of Congress:

    TK Electrical engineering. Electronics Nuclear engineering

  • Dewey Decimal Classification:

    621.38 Electronics & Communications engineering

  • Funders:

    Edinburgh Napier Funded


See, C., Abd-Alhameed, R., Excell, P., McEwan, N., & Gardiner, J. (2008). Internal triple-band folded planar antenna design for third generation mobile handsets. IET microwaves, antennas & propagation, 2(7), 718-724.



microstrip antennas; mobile radio; antenna radiation patterns; planar antennas

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