Planar monopole antennas for new generation mobile and lower band ultra-wide band applications

See, C.H.; Abd-Alhameed, R.A.; Jones, S.M.R.; Zhou, D.; McEwan, N.J.; Excell, P.S.; Elmegri, F.; Noras, J.M.

Abstract

This study presents two multiband planar printed monopole antennas with an optimised size of 57 × 37.5 × 0.8 mm³ for mobile/wireless and low-band ultra-wide band (UWB) applications. Both these antennas are constructed as a chorded crescent-shaped radiator, a feed line and a defected ground plane. The experimental and computed results confirm that one design offers a wide usable impedance bandwidth of 114.3%, with a reflection coefficient |S ₁₁ | <-10 dB, over 1.5-5.5 GHz. The other incorporates a tapered sickle-shaped slot in the radiator and demonstrates a band-suppression feature giving rejection of the worldwide interoperability for microwave access band (3.4-3.69 GHz) where this is not required. The gains and far-field patterns of the antennas are presented and their group delay over the lower band UWB frequency range is also discussed.

• Journal Article Type: Article
• Publication Date: Aug 21, 2012
• 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: 6
• Issue: 11
• Pages: 1207-1214
• DOI: https://doi.org/10.1049/iet-map.2012.0086
• Keywords: Electrical and Electronic Engineering
• Public URL: http://researchrepository.napier.ac.uk/Output/1820464