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Numerical modeling of a nonuniform grating with FDTD
Author(s) -
AlaLaurinaho J.,
Hirvonen T.,
Tuovinen J.,
Räisänen A. V.
Publication year - 1997
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/(sici)1098-2760(19970620)15:3<134::aid-mop5>3.0.co;2-h
Subject(s) - finite difference time domain method , optics , grating , antenna (radio) , antenna aperture , microwave , physics , holography , parabolic antenna , radiation pattern , engineering , electrical engineering , quantum mechanics
The need for a numerical analysis of a nonuniform grating arises from antenna testing facilities. A hologram type of compact antenna test range (CATR) is a recently proposed method for antenna testing at millimeter wavelengths. Simulations of the quiet‐zone field are done with a two‐dimensional finite‐difference–time domain method (FDTD), combined with an exact near‐field aperture integration method [physical optics (PO)]. © 1997 John Wiley & Sons, Inc. Microwave Opt Technol Lett 15: 134–139, 1997.