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Strong microwave second order rejection band in opal‐like structures
Author(s) -
Gastón A.,
Beruete M.,
Meseguer F.,
Sorolla M.,
Sevilla J.
Publication year - 2005
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.21204
Subject(s) - microwave , optics , french horn , diffraction , bragg's law , antenna (radio) , horn antenna , order (exchange) , physics , materials science , optoelectronics , engineering , telecommunications , radiation pattern , slot antenna , acoustics , finance , economics
The electromagnetic‐transmission properties of opal‐like structures made of glass marbles has been measured. All the cases show strongly rejected bands at frequencies corresponding to a Bragg 2 nd ‐order of diffraction. The results show good agreement with appropriate simulations. Moreover, the structure presents a lens effect when placed properly at the output of a conventional horn antenna. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 47: 472–475, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21204