UPSpace will be temporarily unavailable tonight from 19:00 to 23:00 (South African Time) due to scheduled maintenance. We apologise for any inconvenience this may cause and appreciate your understanding
 

End-launched coaxial and microstrip to partial H-plane waveguide adapters

dc.contributor.advisorJoubert, Johan
dc.contributor.coadvisorOdendaal, J.W. (Johann Wilhelm)
dc.contributor.emailkkloke@csir.co.zaen_ZA
dc.contributor.postgraduateKloke, Kevin Hugh
dc.date.accessioned2015-05-07T12:28:41Z
dc.date.available2015-05-07T12:28:41Z
dc.date.created2014-04-16
dc.date.issued2015en_ZA
dc.descriptionDissertation (MEng)--University of Pretoria, 2014.en_ZA
dc.description.abstractConventional rectangular waveguides are commonly used for high power and millimetre wave microwave applications. However their use at lower frequencies has been limited by their bulky nature at these frequencies. A new type of compact waveguide called a partial H-plane waveguide has previously been proposed that has only one quarter of the cross sectional area of a conventional waveguide. However, only limited information relating to the feeding of such waveguides is available. This study focuses on the development of a practical end-launched coaxial and a microstrip to partial H-plane waveguide adapters with similar or larger achievable bandwidths compared to conventional waveguide probe feed adapters. The two proposed waveguide transition geometries are investigated to determine which parameters can be used to optimise the insertion and return losses. The prototype waveguide transitions were optimised using numerous simulations and fabricated in the back-to-back configuration. Simulated single ended and back-to-back S-parameters yield good performance over the entire H-band (3.95 to 5.85 GHz, also known as G-Band). De-embedding techniques are used to measure the approximate single ended response of the two waveguide adapters based on the back-to-back measurements. The measurement and simulation results compare favourably and validate the designs.en_ZA
dc.description.availabilityUnrestricteden_ZA
dc.description.degreeMEng
dc.description.departmentElectrical, Electronic and Computer Engineeringen_ZA
dc.description.librariantm2015en_ZA
dc.identifier.citationKloke, KH 2015, End-launched coaxial and microstrip to partial H-plane waveguide adapters, MEng Dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/45036> en_ZA
dc.identifier.otherE14/4/532en_ZA
dc.identifier.urihttp://hdl.handle.net/2263/45036
dc.language.isoenen_ZA
dc.publisherUniversity of Pretoriaen_ZA
dc.rights© 2014 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.en_ZA
dc.subjectPartial H-plane waveguideen_ZA
dc.subjectMicrostrip adapteren_ZA
dc.subjectWaveguide transitionen_ZA
dc.subjectCoaxial adapteren_ZA
dc.subjectS-parametersen_ZA
dc.subjectT-parametersen_ZA
dc.subjectUCTDen_ZA
dc.titleEnd-launched coaxial and microstrip to partial H-plane waveguide adaptersen_ZA
dc.typeDissertationen_ZA

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
Kloke_End_2014.pdf
Size:
16.12 MB
Format:
Adobe Portable Document Format
Description:
Dissertation

License bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description: