NDLI: Full-wave mutual coupling analysis of wideband arrays based on aperiodic tilings

Content Provider	IEEE Xplore Digital Library
Author	Spence, T.G. Werner, D.H.
Copyright Year	2009
Description	Author affiliation: The Pennsylvania State University, Department of Electrical Engineering and Applied Research Laboratory, USA (Spence, T.G.; Werner, D.H.)
Abstract	Recently, aperiodic tilings have been shown to provide an effective framework for designing planar antenna array layouts with the attractive features of ultra-wide bandwidths and highly sparse distributions. Their application to array design was explored in [1], where the radiation properties of planar arrays based on certain categories of aperiodic tilings were investigated. In this investigation selected portions of tilings were replaced by arrays that had an element located at each vertex of the tiling. It was shown that certain aperiodic sets (the set of tiles that make up the tiling) lead to array configurations that exhibit broadband performance in terms of suppressed grating lobes and maintaining low sidelobe levels. Array operating bandwidths (i.e., the frequency range over which the peak sidelobe level remains at or below −10 dB) corresponding to minimum element spacings of up to of 1.5λ were reported in [1]. While aperiodic tiling arrays naturally possess broadband characteristics, their performance is basically limited by their corresponding aperiodic set. In other words, various arrays generated from the same aperiodic set tend to have similar radiation properties. In [2], a design technique that circumvents this limitation by introducing perturbations into the basic tiling generation process was introduced. The technique utilizes a small number of design parameters to greatly vary the geometry of arrays generated from an aperiodic set. With proper parameter selection, the bandwidth of the perturbed aperiodic arrays can be enhanced past that of unperturbed counterparts. Genetic algorithm optimized designs with bandwidths up to 22:1 were presented in [2]. This design technique also has the potential to lead to highly sparse element distributions [2], [3].
Starting Page	1
Ending Page	4
File Size	947461
Page Count	4
File Format	PDF
ISBN	9781424436477
ISSN	15223965
DOI	10.1109/APS.2009.5171602
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-06-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Mutual coupling Wideband Microstrip antenna arrays Performance analysis Microstrip antennas Patch antennas Planar arrays Antenna arrays Bandwidth Antenna radiation patterns
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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