In this dissertation, a series of multiband hybrid mobile phone antennas, incorporating the electric-current and equivalent magnetic-current excitation mechanisms are presented. The design concept of the hybrid antenna is that the multiband operation is achieved by incorporating the resonant modes generated by the two above-mentioned excitation mechanisms. In the first and the second antenna designs, they are obtained by stacking the antennas using the electric-current and equivalent magnetic-current excitations, and both can achieve multiband operations. For the last two antenna designs, the two different excitation mechanisms can be incorporated on a single metal plate or dielectric substrate. This kind of hybrid are promising for application in bar-type and folder-type mobile phones. Besides, in order to pass some required testing criterions and analyze the environmental effects, the hybrid penta-band mobile phone antenna applied in bar-type and folder-type mobile phones is analyzed. The main topics include the speaker¡¦s effects on the antenna¡¦s performances, the analysis of user¡¦s hand and head effects, and the analysis of the hearing aid compatibility.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0424108-174443 |
| Date | 24 April 2008 |
| Creators | Wu, Chih-Hsien |
| Contributors | Jieh-Sen Kuo, Fa-Shian Chang, Kuo-Chien Chao, Wen-Shan Chen, Yuan-Tung Cheng, Wen-Shyang Chen, Kin-Lu Wong, Shiu-Yun Lin, Hua-Ming Chen |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0424108-174443 |
| Rights | not_available, Copyright information available at source archive |
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