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

See, C.H.; Abd-Alhameed, R.A.; Excell, P.S.; McEwan, N.J.; Gardiner, J.G.

Abstract

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.

• Journal Article Type: Article
• Publication Date: Oct 1, 2008
• Deposit Date: May 22, 2019
• Journal: IET Microwaves, Antennas & Propagation
• Print ISSN: 1751-8725
• Electronic ISSN: 1751-8733
• Publisher: Institution of Engineering and Technology (IET)
• Peer Reviewed: Peer Reviewed
• Volume: 2
• Issue: 7
• Pages: 718-724
• DOI: https://doi.org/10.1049/iet-map%3A20070356
• Keywords: microstrip antennas; mobile radio; antenna radiation patterns; planar antennas
• Public URL: http://researchrepository.napier.ac.uk/Output/1819964