Automatic search for efficient broadband microstrip patch antennas

Mitchell, Arnan; Lech, M.; Waterhouse, R.B.

doi:10.1109/apmc.2001.985361

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…However, much of the emphasis has been on shape optimization either by altering geometric parameters (e.g., thickness of the substrate, loading, shorting pins, etc.) [1]- [3] or by concentrating on metallization shape [2], [4]- [9]. Material optimization has not been considered except for a few recent cases [11], [12] where the material was employed in a limited design space and with very limited nonmagnetic material choices.…”

Section: Introductionmentioning

confidence: 99%

Multiobjective Optimal Antenna Design Based on Volumetric Material Optimization

Koulouridis

Psychoudakis

Volakis

2007

IEEE Trans. Antennas Propagat.

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There is growing interest for small antennas that concurrently have higher functionality and operability. Multiobjective optimization is an important tool in the design of such antennas since conflicting goals such as higher gain, increased bandwidth, and size reduction must be addressed simultaneously. In this paper, we present a novel optimization algorithm which permits full volumetric antenna design by combining genetic algorithms with a fast hybrid finite element-boundary integral method. To our knowledge, this is the first time that a full three dimensional antenna design is pursued using concurrent shape, size, metallization as well as dielectric and magnetic material volume optimization. In comparison to previous optimization pursuits, our approach employs a wide-frequency sweep using a single geometry model, thus, enhancing speed, along with several discrete material choices for realizable optimized designs. The developed algorithm can be interpreted as a three dimensional Pareto optimization scheme and provides the designer with several choices among the best antennas, according to design goals and constraints. The final designs are associated with very thin ( 0 01 ) material substrates and yield as much as 15% bandwidth using a 0 1 -0 4 aperture subject to various gain and bandwidth requirements.Index Terms-Pareto surface font, printed conformal antennas, size shape and material optimization.

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