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End-launched coaxial and microstrip to partial H-plane waveguide adapters
Dissertation (MEng)--University of Pretoria, 2014.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2015
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| _version_ | 1867613526968762369 |
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| access_status_str | Open Access |
| author2 | Joubert, Johan |
| author_browse | Joubert, Johan |
| author_facet | Joubert, Johan |
| collection | Thesis |
| dc_rights_str_mv | © 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. |
| description | Dissertation (MEng)--University of Pretoria, 2014. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/45036 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:37:33.559Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/45036 End-launched coaxial and microstrip to partial H-plane waveguide adapters Joubert, Johan kkloke@csir.co.za Odendaal, J.W. (Johann Wilhelm) Kloke, Kevin Hugh Partial H-plane waveguide Microstrip adapter Waveguide transition Coaxial adapter S-parameters T-parameters UCTD Dissertation (MEng)--University of Pretoria, 2014. Conventional 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. tm2015 Electrical, Electronic and Computer Engineering MEng Unrestricted 2015-05-07T12:28:41Z 2015-05-07T12:28:41Z 2014-04-16 2015 Dissertation Kloke, 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> E14/4/532 http://hdl.handle.net/2263/45036 en © 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. application/pdf University of Pretoria |
| spellingShingle | Partial H-plane waveguide Microstrip adapter Waveguide transition Coaxial adapter S-parameters T-parameters UCTD End-launched coaxial and microstrip to partial H-plane waveguide adapters |
| title | End-launched coaxial and microstrip to partial H-plane waveguide adapters |
| title_full | End-launched coaxial and microstrip to partial H-plane waveguide adapters |
| title_fullStr | End-launched coaxial and microstrip to partial H-plane waveguide adapters |
| title_full_unstemmed | End-launched coaxial and microstrip to partial H-plane waveguide adapters |
| title_short | End-launched coaxial and microstrip to partial H-plane waveguide adapters |
| title_sort | end launched coaxial and microstrip to partial h plane waveguide adapters |
| topic | Partial H-plane waveguide Microstrip adapter Waveguide transition Coaxial adapter S-parameters T-parameters UCTD |
| url | http://hdl.handle.net/2263/45036 |