Three-dimensional folded antenna with ultra-wideband performance, directional radiation and compact size

Mobashsher, Ahmed Toaha and Abbosh, Amin (2014) Three-dimensional folded antenna with ultra-wideband performance, directional radiation and compact size. IET Microwaves, Antennas and Propagation, 8 3: 171-179. doi:10.1049/iet-map.2013.0374


Author Mobashsher, Ahmed Toaha
Abbosh, Amin
Title Three-dimensional folded antenna with ultra-wideband performance, directional radiation and compact size
Journal name IET Microwaves, Antennas and Propagation   Check publisher's open access policy
ISSN 1751-8725
1751-8733
Publication date 2014-01-01
Year available 2014
Sub-type Article (original research)
DOI 10.1049/iet-map.2013.0374
Volume 8
Issue 3
Start page 171
End page 179
Total pages 9
Place of publication Stevenage, Herts, United Kingdom
Publisher Institution of Engineering and Technology
Language eng
Subject 2208 Electrical and Electronic Engineering
Abstract A compact ultra-wideband (UWB) antenna with directional radiation is presented. The antenna has a low profile and does not need a large ground for its performance. The antenna is based on using a three-dimensional folded structure that is modified using semi-circular slots on bowtie-shaped elements. The antenna's mechanism, its design guidelines and its optimisation are described thoroughly. A prototype of the antenna is fabricated andmeasured for performance verification. The prototype shows 77% fractional bandwidth (centred at 2 GHz) based on 10 dB return loss reference. The equivalent overall size of the prototype is (λeff/3) × (λeff/4) × 0.07λeff (λeff = effective wavelength at the lowest resonant frequency), which proves the compactness of the antenna. The antenna shows unidirectional radiation pattern with around 15 dB front-to-back ratio, -20 dB cross-polarisation in the two principle planes and around 5 dBi gain. The antenna is prescribed for compact UWB applications that use the low 1-3 GHz frequency band.
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2015 Collection
School of Information Technology and Electrical Engineering Publications
 
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