## Abstract This paper presents unequal microstrip power divider designs using the hierarchal genetic algorithm (HGA). The dividing ratio and return loss are the design specifications leading the evolution direction. By employing the HGA chromosome formulation, the system structure and its associat
Meta-material surface design using the hierarchical genetic algorithm
โ Scribed by Yuan Yuan; Chi Hou Chan; Kim Fung Man; Kwai Man Luk
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 699 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0895-2477
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โฆ Synopsis
Abstract
In this paper, we design a metaโmaterial surface emulating a perfect magnetic conducting plane (PMC) using the hierarchical genetic algorithm (HGA). This is achieved by manipulating the unitโcell geometry of frequencyโselective surface screens and the electrical properties of the supporting dielectric medium in the optimization process. The properties of the structure are evaluated using a method of moments (MoM)โbased electromagnetic solver. By virtue of the HGA, prior information of the number of FSS screens and dielectric layers is not required. The designed PMC is employed as a dipoleโantenna reflector for gain enhancement. ยฉ 2003 Wiley Periodicals, Inc. Microwave Opt Technol Lett 39: 226โ230, 2003; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.11176
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