Journal ArticleDOI
Multiband single-layer frequency selective surface designed by combination of genetic algorithm and geometry-refinement technique
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TLDR
In this article, the authors proposed an optimization-design method for the frequency selective surface (FSS) based on the GA incorporated with a geometry-refinement technique, which takes the connectivity condition of the elements into consideration, thereby resulting in an easy fabrication.Abstract:
This paper proposes an optimization-design method for the frequency selective surface (FSS) based on the genetic algorithm (GA) incorporated with a geometry-refinement technique. The present method takes the connectivity condition of the elements into consideration, thereby resulting in an easy fabrication. As an example, we design the multiband single-layer FSS for transmitting L band (1.5 GHz band) and S band (2.5 GHz band) and also reflecting Ka band (20/30 GHz band). The designed FSS has bandwidths broader than previous FSSs. Finally, the validity of the present method is proved by the agreement between the calculated and the measured transmission responses for the designed FSS.read more
Citations
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Journal ArticleDOI
Low-Profile, Highly-Selective, Dual-Band Frequency Selective Surfaces With Closely Spaced Bands of Operation
TL;DR: In this article, a dual-band frequency selective surface (FSS) with closely spaced bands of operation and a highly selective frequency response at each band is presented, which is attributed to the extremely small overall thickness of the structure as well as its small unit cell dimensions.
Journal ArticleDOI
The design and fabrication of planar multiband metallodielectric frequency selective surfaces for infrared applications
TL;DR: In this article, a single-layer, multiband IR FSS was fabricated on thin, flexible polyimide substrates and characterized using Fourier transform infrared (FTIR) spectroscopy.
Journal ArticleDOI
Synthesis of Quasi-Elliptic Bandpass Frequency-Selective Surface Using Cascaded Loop Arrays
Bo Li,Zhongxiang Shen +1 more
TL;DR: In this paper, a quasi-elliptic bandpass frequency-selective surface (FSS) is presented by cascading a two-dimensional periodic array of double square loops and an array of gridded square loops (GSLs).
Journal ArticleDOI
Hybrid Real-Binary Particle Swarm Optimization (HPSO) in Engineering Electromagnetics
Nanbo Jin,Yahya Rahmat-Samii +1 more
TL;DR: The applications of a hybrid real-binary particle swarm optimization (HPSO) algorithm in engineering electromagnetics and the effectiveness of the algorithm in representative topology exploration and material selection problems are described.
Journal ArticleDOI
Multipole Spatial Filters Using Metamaterial-Based Miniaturized-Element Frequency-Selective Surfaces
Farhad Bayatpur,Kamal Sarabandi +1 more
TL;DR: In this paper, a very thin-layer modified miniaturized-element frequency-selective surface (FSS) has been developed to achieve low thickness solution and improved functionality, enabling implementation of higher order spatial filters over low profile conformal antenna arrays.
References
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Book
Frequency Selective Surfaces: Theory and Design
TL;DR: In this article, the authors present a comparison of band-pass and Dichroic filter designs for one and two-dimensional periodic structures, and present an overview of the current state-of-the-art.
Journal ArticleDOI
Techniques for analyzing frequency selective surfaces-a review
Raj Mittra,Chi Hou Chan,T. Cwik +2 more
TL;DR: In this article, a number of representative techniques for analyzing frequency-selective surfaces (FSSs), which comprise periodic arrays of patches or apertures in a conducting screen and find important applications as filters in microwaves and optics, are discussed.
Journal ArticleDOI
Genetic algorithms in engineering electromagnetics
J.M. Johnson,V. Rahmat-Samii +1 more
TL;DR: This paper presents a tutorial and overview of genetic algorithms for electromagnetic optimization, showing genetic-algorithm optimization to be suitable for optimizing a broad class of problems of interest to the electromagnetic community.
Journal ArticleDOI
Genetic algorithm optimization applied to electromagnetics: a review
Daniel S. Weile,Eric Michielssen +1 more
TL;DR: The basic genetic algorithm is described and its history in the electromagnetics literature is recounted, the application of advanced genetic operators to the field of electromagNETics is described, and designs are presented for a number of different applications.
Journal ArticleDOI
Fractal FSS: a novel dual-band frequency selective surface
Jordi Romeu,Yahya Rahmat-Samii +1 more
TL;DR: In this article, a Sierpinski dipole FSS has been analyzed and measured and the results show an interesting dual-band behavior, and a near field measurement technique is applied to characterize the FSS response to different angles of incidence.