Numerical Study on the Orthogonality of the Fields Radiated by an Aperture-Reference-Cited by-同舟云学术

Numerical Study on the Orthogonality of the Fields Radiated by an Aperture

Published:2023-02-28 Issue:5 Volume:11 Page:1198
ISSN:2227-7390
Container-title:Mathematics
language:en
Short-container-title:Mathematics

Author:

Polo-López Lucas¹²^ORCID,Córcoles Juan²^ORCID,Ruiz-Cruz Jorge A.²^ORCID,Montejo-Garai José R.³^ORCID,Rebollar Jesús M.³

Affiliation:

1. Institut d’Electronique et des Technologies du numéRique (IETR), UMR CNRS 6164, INSA Rennes, 35700 Rennes, France

2. Group of RadioFrequency: Circuits and Systems (RFCAS), Escuela Politécnica Superior, Universidad Autónoma de Madrid, 28049 Madrid, Spain

3. Information Processing and Telecommunications Center, Universidad Politécnica de Madrid, 28040 Madrid, Spain

Abstract

This work studies the orthogonality of the fields radiated by the different modes of a radiating aperture. Waveguide modes exhibit an orthogonality property at the aperture cross-section that can be used to simplify calculations. However, it is unclear whether this property can be extended to the radiated fields produced by these same modes in apertures antennas, such as horns or open-ended waveguides. A numerical study has been carried out, analysing how the waveguide orthogonality extends to the radiated modal fields. It is observed that propagating modes and also modes that are well below cutoff follow this same behaviour. However, modes that are close to cutoff exhibit values in between those far from this transition region.

Funder

Spanish Government

Agencia Estatal de Investigacion

UE (European Union) “NextGenerationEU”/PRTR

Publisher

MDPI AG

Subject

General Mathematics,Engineering (miscellaneous),Computer Science (miscellaneous)

Link

https://www.mdpi.com/2227-7390/11/5/1198/pdf

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