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This paper presents a new and completely theoretical accurate method for the design of dlelectic image guide gratings. Our method is based on a network approach that can easily analyze, with satisfactory approximations, the interaction of dielectric step discontinuities. These are the fundamental constituents of our gratings. Measurements on a filter modeled at X-band show excellent agreement with the design characteristics.
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Shigesawa et al. (1986) studied this question.
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