Jumping Genes Multiobjective Optimization Scheme for Planar Monopole Ultrawideband Antenna

A planar ultrawideband (UWB) monopole antenna is proposed in this paper. It has a planar multiple-trapezoidal monopole with adjustable dimensions. The proposed antenna is incorporated with the rectangular/rounded-corner ground plane to further improve the monopole performances such as impedance band...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2008-12, Vol.56 (12), p.3659-3666
Main Authors: Yang, Xue-Song, Ng, Kai Tat, Yeung, Sai Ho, Man, Kim Fung
Format: Article
Language:English
Subjects:
Adjustable
Antenna radiation patterns
Antennas
Applied sciences
Bandwidth
Exact sciences and technology
Frequency
Genes
Ground plane
Hardware
Impedance
Jumping
Jumping genes (JGs)
Low voltage
Monopoles
multiobjective optimization evolutionary algorithm (MOEA)
Optimization
Performance gain
planar monopole antenna
Prototypes
Radiocommunications
Studies
Telecommunications
Telecommunications and information theory
trapezoidal monopole antenna
Ultra wideband antennas
Ultra wideband technology
Ultrawideband
ultrawideband (UWB) antenna
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Summary:A planar ultrawideband (UWB) monopole antenna is proposed in this paper. It has a planar multiple-trapezoidal monopole with adjustable dimensions. The proposed antenna is incorporated with the rectangular/rounded-corner ground plane to further improve the monopole performances such as impedance bandwidth. The geometric complexity of the antenna configuration is not easily devisable when the UWB performance criteria such as low voltage standing wave ratio (VSWR), minimal antenna size, omni-directional and uniform radiation pattern, and relatively constant gain over the ultrawide frequency band are to be simultaneously met. In this paper, all of these requirements can now be easily accomplished by making use of the recently developed jumping genes (JGs) multiobjective optimization scheme. A vivid demonstration of this approach of UWB design is to select an antenna configuration from the thoroughly investigated results and come up with the ultimate recommendation of hardware prototype fabrication. This way not only confirms both the simulated and measured results are all in good agreement but also indicates that the proposed methodology is sound for the design of UWB antenna.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2008.2007288