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arXiv · 2307.08325

Higher-order mode filtering by a resistive layer

Svetlana Kuznetsova·Yves Auregan·Vincent Pagneux
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Abstract

A method of higher-order modes filtering in an air-filled waveguide using a resistive layer is proposed. An analogue of Cremer's criterion is discussed and used to obtain the optimal modal attenuation of the non-planar waves while the plane wave is preserved. Numerical validation of the concept is performed for a straight waveguide and an abrupt expansion in a waveguide.

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Svetlana Kuznetsova, Yves Auregan, Vincent Pagneux. 2023-07-17. Higher-order mode filtering by a resistive layer. https://arxiv.org/abs/2307.08325

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