Bandwidth extended designs of double-ridged guide horn antennas

dc.contributor.advisorOdendaal, Wimpie
dc.contributor.coadvisorJoubert, Johan
dc.contributor.emailbenniejacobs777@gmail.comen_US
dc.contributor.postgraduateJacobs, Benjamin
dc.date.accessioned2025-01-15T08:07:51Z
dc.date.available2025-01-15T08:07:51Z
dc.date.created2025-04
dc.date.issued2024-08
dc.descriptionThesis (PhD (Electronic Engineering))--University of Pretoria, 2024.en_US
dc.description.abstractThe explosive growth in bandwidth requirements on antennas and antenna systems, driven by various industries, also drives the need for the ever‐increasing bandwidth of antennas used for testing. The broadband Double-Ridged Guide Horn (DRGH) antenna finds widespread use in antenna measurement and ElectroMagnetic Compatibility/Interference (EMC/I) testing. An example of a DRGH used extensively for testing is the 1-18 GHz DRGH antenna. A study using ElectroMagnetic (EM) simulation was performed to determine the factors that limit the bandwidth of these antennas. All the parts and sub-assemblies of the DRGH were investigated to determine the impact of each part and or sub-assembly on the electrical performance of the antenna. This was done in simulation using reduced complexity models and parametric studies. The design changes that resulted from this study were implemented in several prototype antennas used for verification. It was found that it is possible to design DRGH antennas with bandwidth ratios of 100:1 and possibly beyond. It is expected that at higher frequencies, the limit will be the manufacturing tolerances and technology, and at lower frequencies, the maximum permissible size of the antenna.en_US
dc.description.availabilityUnrestricteden_US
dc.description.degreePhD (Electronic Engineering)en_US
dc.description.departmentElectrical, Electronic and Computer Engineeringen_US
dc.description.facultyFaculty of Engineering, Built Environment and Information Technologyen_US
dc.description.sdgSDG-09: Industry, innovation and infrastructureen_US
dc.description.sponsorshipSaab Grintek Defenceen_US
dc.identifier.citation*en_US
dc.identifier.doihttps://doi.org/10.25403/UPresearchdata.28070423en_US
dc.identifier.doihttps://doi.org/10.25403/UPresearchdata.28070423
dc.identifier.otherA2025en_US
dc.identifier.urihttp://hdl.handle.net/2263/100074
dc.language.isoenen_US
dc.publisherUniversity of Pretoria
dc.rights© 2023 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria.
dc.subjectUCTDen_US
dc.subjectSustainable Development Goals (SDGs)en_US
dc.subjectAdditive manufacturingen_US
dc.subjectAntenna measurementen_US
dc.subjectBroad bandwidthen_US
dc.subjectDouble-ridged guide hornen_US
dc.subjectElectromagnetic simulationen_US
dc.titleBandwidth extended designs of double-ridged guide horn antennasen_US
dc.typeThesisen_US

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