Higher-order mode filtering by a resistive layer
Applied Physics
2023-07-18 v1
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.
Cite
@article{arxiv.2307.08325,
title = {Higher-order mode filtering by a resistive layer},
author = {Svetlana Kuznetsova and Yves Auregan and Vincent Pagneux},
journal= {arXiv preprint arXiv:2307.08325},
year = {2023}
}
Comments
The following article has been submitted to JASA Express Letters. After it is published, it will be found at https://pubs.aip.org/asa/jel