Utilizing Symmetry of Planar Ultrawideband Antennas for Size Reduction and Enhanced Performance

Mobashsher, Ahmed Toaha and Abbosh, Amin (2015) Utilizing Symmetry of Planar Ultrawideband Antennas for Size Reduction and Enhanced Performance. Ieee Antennas and Propagation Magazine, 57 2: 153-166. doi:10.1109/MAP.2015.2414488

Author Mobashsher, Ahmed Toaha
Abbosh, Amin
Title Utilizing Symmetry of Planar Ultrawideband Antennas for Size Reduction and Enhanced Performance
Journal name Ieee Antennas and Propagation Magazine   Check publisher's open access policy
ISSN 1045-9243
Publication date 2015-04
Year available 2015
Sub-type Article (original research)
DOI 10.1109/MAP.2015.2414488
Open Access Status
Volume 57
Issue 2
Start page 153
End page 166
Total pages 14
Place of publication Piscataway, NJ United States
Publisher Institute of Electrical and Electronics Engineers
Collection year 2016
Language eng
Formatted abstract
With the increasingly new ultrawideband applications, antenna researchers face huge challenges in designing novel operational geometries. Monopole and quasi-monopole antennas are seen to be the most compact and easily incorporable solution for portable devices taking the advantages of printed circuit board techniques. Most antennas of such type have symmetrical structures. It is possible to attain wider operating bandwidths by meeting symmetry conditions while chopping the antenna into halves for a compact structure. However, there is no generalized way of applying such a technique. This paper addresses this issue by proposing a common feeding technique that can be applied to any antenna, which is miniaturized using its symmetrical structure. The proposed technique enables feeding the halved structure to achieve wider and better impedance matching than the reported full-size antennas. The theory of characteristic modes is applied to quasi-monopole structures to get an insight of the antennas-mechanism. The radiation patterns are also correlated with modal current distributions to understand the radiation characteristics of the modified structure. Finally, the method is implemented on some example antennas to illustrate its potential.
Keyword Wideband antenna
Planar Antenna
Compact antenna
Omnidirectional radiation pattern
Compact Directional Antenna
Wide Band Antenna
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2016 Collection
School of Information Technology and Electrical Engineering Publications
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Citation counts: TR Web of Science Citation Count  Cited 4 times in Thomson Reuters Web of Science Article | Citations
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