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Titolo: Vector evaluated GAICT for novel optimum design method of arbitrarily arranged wire grid model antenna and application of GAICT to sectorantenna downsizing problem
Autore: Maruyama, T; Hori, T;
 Indirizzi:
 Nippon Telegraph & Tel Publ Corp, NTT Network Innovat Labs, Wireless Syst Innovat Lab, Yokosuka, Kanagawa 2390847, Japan Nippon Telegraph & Tel Publ Corp Yokosuka Kanagawa Japan 2390847 7, Japan
 Titolo Testata:
 IEICE TRANSACTIONS ON COMMUNICATIONS
fascicolo: 11,
volume: E84B,
anno: 2001,
pagine: 3014  3022
 SICI:
 09168516(200111)E84B:11<3014:VEGFNO>2.0.ZU;2I
 Fonte:
 ISI
 Lingua:
 ENG
 Soggetto:
 GENETIC ALGORITHMS; ELEMENTS;
 Keywords:
 genetic algorithm; optimization; vector evaluation method; ICT; sector antenna; small antenna; YagiUda antenna;
 Tipo documento:
 Article
 Natura:
 Periodico
 Settore Disciplinare:
 Engineering, Computing & Technology
 Citazioni:
 18
 Recensione:
 Indirizzi per estratti:
 Indirizzo: Maruyama, T Nippon Telegraph & Tel Publ Corp, NTT Network Innovat Labs, Wireless Syst Innovat Lab, Yokosuka, Kanagawa 2390847, Japan Nippon Telegraph& Tel Publ Corp Yokosuka Kanagawa Japan 2390847



 Citazione:
 T. Maruyama e T. Hori, "Vector evaluated GAICT for novel optimum design method of arbitrarily arranged wire grid model antenna and application of GAICT to sectorantenna downsizing problem", IEICE TR CO, E84B(11), 2001, pp. 30143022
Abstract
This paper proposes the Vector Evaluated GAICT (VEGAICT), a novel designmethod that employs the Genetic Algorithm (GA) to obtain the optimum antenna design. GAICT incorporates an arbitrary wiregrid model antenna to derive the optimum solution without any basic structure or limitation on the number of elements by merely optimizing an objective function. GAICT comprises the GA and an analysis method, the Improved Circuit Theory (ICT), with the following characteristics. (1) To achieve optimization of an arbitrary wiregrid model antenna without a basic antenna structure, the unknowns of the ICT are directly assigned to variables of the GA in the GAICT. (2) To achieve a variable number of elements, duplicate elements generated by usingthe same feasible region are deleted in the ICT. (3) To satisfy all complex design conditions, the GAICT generates an objective function using a weighting function generated based on electrical characteristics, antenna configuration, and size. (4) To overcome the difficulty of convergence caused by the nonlinearity of each term in the objective function, GAICT adopts a vector evaluation method. In this paper, the novel GAICT method is appliedto downsize sector antennas. The calculation region in GAICT is reduced by adopting cylindrical coordinates and a periodic imaging structure. The GAICT achieves a 30% reduction in size compared to the previously reported small sector antenna, MSMPYA, while retaining almost the same characteristics.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/03/20 alle ore 10:19:56