Off-Bragg Blazed Rectangular Groove Gratings for High Diffraction Efficiency Devices
Autor: | David G. Michelson, N. C. Beaulieu, W. Chen, E.V. Jull |
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Rok vydání: | 2013 |
Předmět: | |
Zdroj: | IEEE Transactions on Antennas and Propagation. 61:2342-2347 |
ISSN: | 1558-2221 0018-926X |
DOI: | 10.1109/tap.2013.2241715 |
Popis: | Off-Bragg blazing of gratings for high efficiency frequency scanning antennas, multiplexers and demultiplexers, is described. Blaze angles occur in pairs and are related by a generalization of the Bragg condition applicable to all grating profiles. Off-Bragg blazing for TM polarization occurs for several perfectly conducting grating profiles, perhaps for all, as indicated by extensive numerical computations using a rigorous mode matching method on a perfectly conducting rectangular groove reflection grating. Design curves for groove dimensions which have high diffraction efficiencies and wide deviations with relatively shallow grooves are given. |
Databáze: | OpenAIRE |
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