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Theory of a reflection grating with narrow grooves
Author(s) -
Hurd R. A.,
Jull E. V.
Publication year - 1981
Publication title -
radio science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.371
H-Index - 84
eISSN - 1944-799X
pISSN - 0048-6604
DOI - 10.1029/rs016i003p00271
Subject(s) - grating , optics , reflection (computer programming) , physics , conformal map , scattering , plane (geometry) , transformation (genetics) , surface (topology) , limit (mathematics) , plane wave , mathematical analysis , mathematics , geometry , computer science , biochemistry , chemistry , gene , programming language
The scattering of a plane H‐polarized wave from a grating composed of narrow grooves in a perfectly conducting surface is investigated theoretically using conformal transformation techniques. The theory is exact in the limit a/d → 0, where a is the slot width and d is the grating period, and remains valid for practical values of a/d . A necessary condition is derived for the elimination of the specularly reflected wave. When only the −1 and 0 order space waves are present, this condition becomes just the well‐known Bragg condition.