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The gain and efficiency of proximity coupled microstrip dipole arrays
Dissertation (Ph. D.) -- University of Stellenbosch, 1994.
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Stellenbosch : Stellenbosch University
2012
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| _version_ | 1867614037922021376 |
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| access_status_str | Open Access |
| author | Du Plessis, Marius |
| author2 | Cloete, J. H. |
| author_browse | Cloete, J. H. Du Plessis, Marius |
| author_facet | Cloete, J. H. Du Plessis, Marius |
| author_sort | Du Plessis, Marius |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Dissertation (Ph. D.) -- University of Stellenbosch, 1994. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/58586 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:45:40.774Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2012 |
| publishDateRange | 2012 |
| publishDateSort | 2012 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/58586 The gain and efficiency of proximity coupled microstrip dipole arrays Du Plessis, Marius Cloete, J. H. Stellenbosch University. Faculty of Engineering. Dept. of Electrical & Electronic Engineering. Antennas (Electronics) Strip transmission lines Antenna arrays Antennas, Dipole Dissertations -- Engineering Dissertation (Ph. D.) -- University of Stellenbosch, 1994. This thesis addresses problems associated with the analysis, design and manufacture of finite arrays of printed dipoles fed by means of a corporate microstrip feed network. Two types of proximity coupled dipoles are used as radiators in examples of linear and planar arrays. Linear arrays of up to 16 dipoles and planar arrays of up to 128 dipoles are investigated. The individual dipoles are analyzed by means of a full wave numerical procedure which also allows mutual coupling between two isolated dipoles to be determined. Array analysis is based on an element-by-element procedure, making use of a complete impedance matrix which includes all higher order mutual impedance terms. The corporate microstrip feed uses only reactive power dividers which allows coupling via the feed, in addition other coupling mechanisms. An iterative procedure has been developed for an accurate analysis of the array with its reactive corporate feed. Loss mechanisms and the compilation of a loss budget, for this type of antenna receive detailed attention. This thesis looks at dissipative loss in the feed and the radiators, spurious feed radiation, surface wave loss from the feed and radiators, and statistical loss. A series of linear and planar arrays are dealt with by application of all the methods developed throughout the thesis. A number of arrays examples are looked at in detail and trends in loss, gain and efficiency are investigated for arrays of increasing size. Comparisons are made between theoretical and experimental results. The ultimate goal of this work is to investigate the engineering advantages and disadvantages of a class of microstrip arrays and to contribute to the accurate prediction of gain and efficiency. Doctoral 2012-08-27T11:39:03Z 2012-08-27T11:39:03Z 1994 Thesis http://hdl.handle.net/10019.1/58586 en Stellenbosch University 152 pages : ill. application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Antennas (Electronics) Strip transmission lines Antenna arrays Antennas, Dipole Dissertations -- Engineering Du Plessis, Marius The gain and efficiency of proximity coupled microstrip dipole arrays |
| title | The gain and efficiency of proximity coupled microstrip dipole arrays |
| title_full | The gain and efficiency of proximity coupled microstrip dipole arrays |
| title_fullStr | The gain and efficiency of proximity coupled microstrip dipole arrays |
| title_full_unstemmed | The gain and efficiency of proximity coupled microstrip dipole arrays |
| title_short | The gain and efficiency of proximity coupled microstrip dipole arrays |
| title_sort | gain and efficiency of proximity coupled microstrip dipole arrays |
| topic | Antennas (Electronics) Strip transmission lines Antenna arrays Antennas, Dipole Dissertations -- Engineering |
| url | http://hdl.handle.net/10019.1/58586 |
| work_keys_str_mv | AT duplessismarius thegainandefficiencyofproximitycoupledmicrostripdipolearrays AT duplessismarius gainandefficiencyofproximitycoupledmicrostripdipolearrays |