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An artificial magnetic ground-plane for a log-periodic antenna
Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2010.
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Stellenbosch : University of Stellenbosch
2010
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| _version_ | 1867613891142352896 |
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| access_status_str | Open Access |
| author | Visser, Hugo Hendrik |
| author2 | Geschke, R. H. |
| author_browse | Geschke, R. H. Visser, Hugo Hendrik |
| author_facet | Geschke, R. H. Visser, Hugo Hendrik |
| author_sort | Visser, Hugo Hendrik |
| collection | Thesis |
| dc_rights_str_mv | University of Stellenbosch |
| description | Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2010. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/4176 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:43:20.403Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2010 |
| publishDateRange | 2010 |
| publishDateSort | 2010 |
| publisher | Stellenbosch : University of Stellenbosch |
| publisherStr | Stellenbosch : University of Stellenbosch |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/4176 An artificial magnetic ground-plane for a log-periodic antenna Visser, Hugo Hendrik Geschke, R. H. Palmer, K. D. University of Stellenbosch. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Electromagnetic bandgap Perfect magnetic conductor Log periodic dipole array Artificial magnetic conductor Dissertations -- Electronic engineering Theses -- Electronic engineering Log-periodic antennas Thesis (MScEng (Electrical and Electronic Engineering))--University of Stellenbosch, 2010. ENGLISH ABSTRACT: This paper presents the implementation of an artificial magnetic ground-plane with a low profile Log-periodic Dipole Array (LPDA) antennas. After the properties of three typical Electromagnetic Bandgap (EBG) structures are investigated and their bandwidth properties are studied, a mechanism is presented to improve the band-width over which the EBG surface acts as a perfect magnetic conductor (PMC). A low profile LPDA is modeled above this surface and the results indicate an improved band-width region. Compared with a LPDA in free space the frequency band is shifted higher by the EBG surface and the gain pattern is shifted from a horizontal orientation to a vertical orientation. AFRIKAANSE OPSOMMING: Hierdie dokument stel voor die implementering van kunsmatige magnetiese grondvlakke met Logaritmiese Periodiese Dipool Samestelling (LPDS) antennas. Die eienskappe van drie tipiese Elektromagnetiese Bandgaping (EBG) strukture word ondersoek en hul bandwydte eienskappe word bestudeer. ’n Meganisme word voorgestel om die bandwydte te verbeter waar die EBG oppervlakte soos n perfekte magnetiese geleier optree. ’n Lae profiel LPDS word bo hierdie oppervlakte geplaas. Die resultate dui aan ’n verbetering in the bandwydte. In vergelyking met ’n LPDS in vrye ruimte skuif die frekwensie band ho¨er as gevolg van die EBG oppervlakte en die aanwins patroon skuif van ’n horisontale orientasie na ’n vertikale orientasie. 2010-02-18T07:03:56Z 2010-08-13T14:59:54Z 2010-02-18T07:03:56Z 2010-08-13T14:59:54Z 2010-03 Thesis http://hdl.handle.net/10019.1/4176 en University of Stellenbosch 36 p. : ill. application/pdf Stellenbosch : University of Stellenbosch |
| spellingShingle | Electromagnetic bandgap Perfect magnetic conductor Log periodic dipole array Artificial magnetic conductor Dissertations -- Electronic engineering Theses -- Electronic engineering Log-periodic antennas Visser, Hugo Hendrik An artificial magnetic ground-plane for a log-periodic antenna |
| title | An artificial magnetic ground-plane for a log-periodic antenna |
| title_full | An artificial magnetic ground-plane for a log-periodic antenna |
| title_fullStr | An artificial magnetic ground-plane for a log-periodic antenna |
| title_full_unstemmed | An artificial magnetic ground-plane for a log-periodic antenna |
| title_short | An artificial magnetic ground-plane for a log-periodic antenna |
| title_sort | artificial magnetic ground plane for a log periodic antenna |
| topic | Electromagnetic bandgap Perfect magnetic conductor Log periodic dipole array Artificial magnetic conductor Dissertations -- Electronic engineering Theses -- Electronic engineering Log-periodic antennas |
| url | http://hdl.handle.net/10019.1/4176 |
| work_keys_str_mv | AT visserhugohendrik anartificialmagneticgroundplaneforalogperiodicantenna AT visserhugohendrik artificialmagneticgroundplaneforalogperiodicantenna |