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STUDIES OF DUAL-BAND AND BROADBAND PRINTED SLOT ANTENNAS

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%.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0111101-150718
Date11 January 2001
CreatorsChen, Wen-Shan
ContributorsWen-Shyang Chen, Kin-Lu Wong, Ching-Her Lee, none, Chin-Yu Huang, Tsair-Rong Chen
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0111101-150718
Rightswithheld, Copyright information available at source archive

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