Novel designs of printed slot antennas have been investigated in this dissertation. For the linearly polarized designs, the study of single-feed dual-frequency printed slot antennas with an open-ring conducting strip is first presented. In addition, a novel design of dual-frequency dual-loop printed slot antenna is described. As for the broadband printed slot antenna designs, a printed semicircular slot antenna with a microstripline feed is shown. The impedance bandwidth obtained reaches about 46%. For the circularly polarized designs, we propose a circularly polarized microstrip antenna with an asymmetry of the antenna structure. By choosing a suitable meandered slot, CP operation can be obtained. Finally, we apply the design concept of CP operation using a shorted section to achieve a circularly polarized printed slot antenna design. The obtained CP bandwidth of this design is greater than 8%.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0111101-150718 |
| Date | 11 January 2001 |
| Creators | Chen, Wen-Shan |
| Contributors | Wen-Shyang Chen, Kin-Lu Wong, Ching-Her Lee, none, Chin-Yu Huang, Tsair-Rong 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-0111101-150718 |
| Rights | withheld, Copyright information available at source archive |
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