Multiband multiple ring monopole antennas

This paper proposes two novel designs of a multiband antenna using multiple rings. The first design consists of a set of self-similar circular rings. This is an alternative to the recently reported triangular fractal Sierpinski gasket monopole antenna, and comparison is made to this and the circular...

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Bibliographic Details
Published inIEEE transactions on antennas and propagation Vol. 51; no. 4; pp. 722 - 729
Main Authors Song, C.T.P., Hall, P.S., Ghafouri-Shiraz, H.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.04.2003
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Antenna radiation patterns
Antennas
Bandwidth
Communication system control
Consumer electronics
Disks
Fractal analysis
Fractals
Frequency
Gaskets
Impedance
Monopole antennas
Self-similarity
Shape
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Summary:This paper proposes two novel designs of a multiband antenna using multiple rings. The first design consists of a set of self-similar circular rings. This is an alternative to the recently reported triangular fractal Sierpinski gasket monopole antenna, and comparison is made to this and the circular disk monopole antenna. The second design is realized by varying the shape of the circular structure to an elliptical one. Larger bandwidth and improved patterns are achieved. In comparison to the circular disk, improved radiation pattern control at higher operating bands, due to the discrete structure of the multiple rings, is shown by numerical and experimental results. The bandwidth is significantly larger than the Fractal Sierpinski gasket and Parany monopole.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2003.811097