Designs of Pattern Reconfigurable Magneto-electric Dipole Array for Base Station Applications
碩士 === 國立彰化師範大學 === 電機工程學系 === 107 === Two pattern reconfigurable antenna arrays are proposed in this thesis. The radiating element of the two arrays is a printed dipole backed with a metallic box, and it has a broad impedance bandwidth as well as a high front-to-back ratio. For the first array, fou...
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ndltd-TW-107NCUE54420272019-11-06T03:33:28Z http://ndltd.ncl.edu.tw/handle/bsv7pz Designs of Pattern Reconfigurable Magneto-electric Dipole Array for Base Station Applications 應用於基地台的電磁偶極場型可重置陣列天線 Wang, Po-Kai 王柏凱 碩士 國立彰化師範大學 電機工程學系 107 Two pattern reconfigurable antenna arrays are proposed in this thesis. The radiating element of the two arrays is a printed dipole backed with a metallic box, and it has a broad impedance bandwidth as well as a high front-to-back ratio. For the first array, four of the elements are connected together by using a mounting fixture with rotatable joints. When the joints are rotated manually, the array configuration is changed, and each array configuration can generate a specific radiation pattern. A prototype designed at the 5 GHz WiFi band is constructed. Measured results for the prototype operating in three typical radiation modes are shown, including high directive radiation mode, two-beam radiation mode, and omnidirectional radiation mode. For the second array, it is composed of four identical subarrays, and each subarray is a compact sector array with four radiating elements. To obtain the required radiation patterns, the four subarrays are stacked in a sequential-rotation fashion. By controlling the number of the elements are excited, the array can provide scanned beams and an omnidirectional pattern in the frequency band from 3.3 to 4 GHz; besides, the scanned beams with three different half-power beamwidths can be obtained. Both measured and simulated results are also provided in the thesis. Row, Jeen-Sheen 羅鈞壎 2019 學位論文 ; thesis 77 zh-TW |
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碩士 === 國立彰化師範大學 === 電機工程學系 === 107 === Two pattern reconfigurable antenna arrays are proposed in this thesis. The radiating element of the two arrays is a printed dipole backed with a metallic box, and it has a broad impedance bandwidth as well as a high front-to-back ratio. For the first array, four of the elements are connected together by using a mounting fixture with rotatable joints. When the joints are rotated manually, the array configuration is changed, and each array configuration can generate a specific radiation pattern. A prototype designed at the 5 GHz WiFi band is constructed. Measured results for the prototype operating in three typical radiation modes are shown, including high directive radiation mode, two-beam radiation mode, and omnidirectional radiation mode.
For the second array, it is composed of four identical subarrays, and each subarray is a compact sector array with four radiating elements. To obtain the required radiation patterns, the four subarrays are stacked in a sequential-rotation fashion. By controlling the number of the elements are excited, the array can provide scanned beams and an omnidirectional pattern in the frequency band from 3.3 to 4 GHz; besides, the scanned beams with three different half-power beamwidths can be obtained. Both measured and simulated results are also provided in the thesis.
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author2 |
Row, Jeen-Sheen |
author_facet |
Row, Jeen-Sheen Wang, Po-Kai 王柏凱 |
author |
Wang, Po-Kai 王柏凱 |
spellingShingle |
Wang, Po-Kai 王柏凱 Designs of Pattern Reconfigurable Magneto-electric Dipole Array for Base Station Applications |
author_sort |
Wang, Po-Kai |
title |
Designs of Pattern Reconfigurable Magneto-electric Dipole Array for Base Station Applications |
title_short |
Designs of Pattern Reconfigurable Magneto-electric Dipole Array for Base Station Applications |
title_full |
Designs of Pattern Reconfigurable Magneto-electric Dipole Array for Base Station Applications |
title_fullStr |
Designs of Pattern Reconfigurable Magneto-electric Dipole Array for Base Station Applications |
title_full_unstemmed |
Designs of Pattern Reconfigurable Magneto-electric Dipole Array for Base Station Applications |
title_sort |
designs of pattern reconfigurable magneto-electric dipole array for base station applications |
publishDate |
2019 |
url |
http://ndltd.ncl.edu.tw/handle/bsv7pz |
work_keys_str_mv |
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