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Numerical modeling of a nonuniform grating with FDTD

✍ Scribed by J. Ala-Laurinaho; T. Hirvonen; J. Tuovinen; A. V. Räisänen

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
237 KB
Volume
15
Category
Article
ISSN
0895-2477

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✦ Synopsis

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 wa¨elengths. 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 .

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