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Characterisation of the anechoic chamber at Stellenbosch University
Thesis (MEng)--Stellenbosch University, 2019.
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| Other Authors: | |
| Format: | Thesis |
| Language: | en_ZA |
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Stellenbosch : Stellenbosch University
2019
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| _version_ | 1867613800316796928 |
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| access_status_str | Open Access |
| author | Bester, Alo-Helene |
| author2 | Meyer, Petrie |
| author_browse | Bester, Alo-Helene Meyer, Petrie |
| author_facet | Meyer, Petrie Bester, Alo-Helene |
| author_sort | Bester, Alo-Helene |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MEng)--Stellenbosch University, 2019. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/107069 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:41:53.663Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/107069 Characterisation of the anechoic chamber at Stellenbosch University Bester, Alo-Helene Meyer, Petrie Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Antenna radiation patterns UCTD Anechoic chambers Stellenbosch University Calibration Thesis (MEng)--Stellenbosch University, 2019. ENGLISH ABSTRACT: The anechoic chamber at the University of Stellenbosch is used on a weekly basis to measure and characterise antenna radiation patterns. Although excellent comparisons between measurements and simulations are achieved, the chamber itself was never characterised to establish how accurate measurements are and how large the contribution of errors is to the measurement uncertainty. The aim of this thesis is to characterise the chamber to an industry standard. The NIST 18 term error analysis was used for this evaluation. The analysis makes use of statistical analytical methods, measurements, simulations, as well as mathematical calculations to establish the measurement uncertainties. Errors that form part of the chamber environment and setup can influence different sections of the radiation pattern. It can either affect the radiation pattern main lobe or the sidelobes or both. During the investigation, it was determined how significant the influence of the various errors are on the different sections of the radiation pattern and how large the associated uncertainty are. A spin-off from the study was that a mechanical calibration of the chamber setup was done and a complete guide to the calibration process is included in this document. AFRIKAANSE OPSOMMING: Raadpleeg teks vir opsomming Masters 2019-11-12T04:20:37Z 2019-12-11T06:45:48Z 2019-11-12T04:20:37Z 2019-12-11T06:45:48Z 2019-12 Thesis http://hdl.handle.net/10019.1/107069 en_ZA Stellenbosch University 106 pages : illustrations application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Antenna radiation patterns UCTD Anechoic chambers Stellenbosch University Calibration Bester, Alo-Helene Characterisation of the anechoic chamber at Stellenbosch University |
| title | Characterisation of the anechoic chamber at Stellenbosch University |
| title_full | Characterisation of the anechoic chamber at Stellenbosch University |
| title_fullStr | Characterisation of the anechoic chamber at Stellenbosch University |
| title_full_unstemmed | Characterisation of the anechoic chamber at Stellenbosch University |
| title_short | Characterisation of the anechoic chamber at Stellenbosch University |
| title_sort | characterisation of the anechoic chamber at stellenbosch university |
| topic | Antenna radiation patterns UCTD Anechoic chambers Stellenbosch University Calibration |
| url | http://hdl.handle.net/10019.1/107069 |
| work_keys_str_mv | AT besteralohelene characterisationoftheanechoicchamberatstellenboschuniversity |