Superdirective radiation from finite gratings of rectangular grooves

In this paper, the superdirective property of arrays comprising a finite number of rectangular grooves is studied by using the modal approach, which is a simple but powerful technique for analyzing these gratings. Numerical results show that when a specific characteristic mode of the structure refer...

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Autor principal: Skigin, D.C
Otros Autores: Veremey, V.V, Mittra, R.
Formato: Capítulo de libro
Lenguaje:Inglés
Publicado: 1999
Acceso en línea:Registro en Scopus
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100 1 |a Skigin, D.C. 
245 1 0 |a Superdirective radiation from finite gratings of rectangular grooves 
260 |c 1999 
270 1 0 |m Skigin, Diana Carina; Universidad de Buenos AiresArgentina 
506 |2 openaire  |e Política editorial 
504 |a Broussaud, G., Spitz, (1960) Radioelect., , Superdirective supergain, Ann. vol. 15, pp. 289-304 
504 |a Bloch, A., (1960) Proc. Inst. Elect. Eng., , R. G. Medhurst, S. D. Pool, and W. E. Knock, Superdirectivity, vol. 48, p. 1164 
504 |a Veremey, V.V., (1995) IEEE Antennas Propagat. Mag., , Superdirective antennas with passive reflectors, vol. 37, pp. 16-27, Apr 
504 |a Veremey, V.V., Shestopalov, V.P., (1991) Radio Sei., , Superdirective radiation forming in antenna with passive resonant reflector, vol. 26, pp. 631-636 
504 |a Fikioris, G., (1990) J. Appl. Phys., , R. W. P. King, and T. Wu, The resonant circular array of electrically small elements, vol. 68, pp. 431-439 
504 |a Andrewartha, J.R., (1977) Opt. Acta, , J. R. Fox, and I. J. Wilson, Resonance anomalies in the lamellar grating, vol. 26, pp. 69-89 
504 |a Jovicevic, S., Sesnic, S., (1972) J. Opt. Soc. Amer., , Diffraction of a parallel- and perpendicular-polarized wave from an echelette grating, vol. 62, pp. 865-877 
504 |a Andrewartha, J.R., (1981) Opt. Acta, , G. H. Derrick, and R. C. McPhedran, A modal theory solution to diffraction from a grating with semi-circular grooves, vol. 28, pp. 1177-1193 
504 |a Li, L., (1993) J. Opt. Soc. Amer., , Multilayer modal method for diffraction gratings of arbitrary profile, depth and permittivity, vol. A10, pp. 2581-2591 
504 |a Depine, R.A., Skigin, D.C., (1994) J. Opt. Soc. Amer., , Scattering from metallic surfaces having a finite number of rectangular grooves, vol. All, no. 11, pp. 2844-2850 
504 |a Skigin, D.C., Depine, R.A., (1997) J. Mod. Opt., , The multilayer modal method for electromagnetic scattering from surfaces with several arbitrarily shaped grooves, vol. 44, pp. 1023-1036 
504 |a Veremey, V.V., Mittra, R., (1998) IEEE Trans. Antennas Propagat., , Scattering from structures formed by resonant elements, vol. 46, pp. 494-501, Apr 
504 |a Miller, E.K., (1995) Appl. Comp. Electromagn. Soc. Newslett., , Model-based parameter estimation in electromagnetics: I-Background and theoretical development, vol. 10, pp. 40-63 
504 |a (1995) Appl. Comp. Electromagn. Soc. Newslett., , Model-based parameter estimation in electromagnetics: II-Applications to EM observables, vol. 11, pp. 35-56 
520 3 |a In this paper, the superdirective property of arrays comprising a finite number of rectangular grooves is studied by using the modal approach, which is a simple but powerful technique for analyzing these gratings. Numerical results show that when a specific characteristic mode of the structure referred to as the π mode is excited, the intensity of the field scattered in the specular direction exhibits a maximum, which becomes sharper and narrower as the number of grooves is increased. The far-field patterns exhibit superdirectivity at these resonant frequencies as evidenced by their beamwidths that are narrower than those expected from apertures of comparable size. The model-based parameter estimation (MBPE) technique has been employed to help locate extremely narrow resonances that are characteristic of superdirective arrays and its usefulness has been demonstrated.  |l eng 
593 |a Electromagnetic Communication Research Laboratory, Pennsylvania State University, University Park, PA 16802, United States 
593 |a Departmento de fi'Sica, FCEyN, Universidad de Buenos, Aires, 1428, Argentina 
593 |a Electromagnetic Communication Research Laboratory, Pennsylvania University, University Park, PA 16802, United States 
690 1 0 |a ALGORITHMS 
690 1 0 |a ANTENNA RADIATION 
690 1 0 |a DIRECTIONAL PATTERNS (ANTENNA) 
690 1 0 |a ELECTROMAGNETIC WAVE SCATTERING 
690 1 0 |a FREQUENCY RESPONSE 
690 1 0 |a MODAL ANALYSIS 
690 1 0 |a NATURAL FREQUENCIES 
690 1 0 |a PARAMETER ESTIMATION 
690 1 0 |a RESONANCE 
690 1 0 |a GRATINGS 
690 1 0 |a MODEL BASED PARAMETER ESTIMATION 
690 1 0 |a SUPERDIRECTIVITY 
690 1 0 |a ANTENNA ARRAYSPB - IEEECP - PISCATAWAY, NJ, UNITED STATES 
700 1 |a Veremey, V.V. 
700 1 |a Mittra, R. 
773 0 |d 1999  |g v. 47  |h pp. 376-383  |k n. 2  |p IEEE Trans Antennas Propag  |x 0018926X  |w (AR-BaUEN)CENRE-1856  |t IEEE Transactions on Antennas and Propagation 
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856 4 0 |u https://doi.org/10.1109/8.761078  |y DOI 
856 4 0 |u https://hdl.handle.net/20.500.12110/paper_0018926X_v47_n2_p376_Skigin  |y Handle 
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