In this thesis, the relation between the fractal structure and the performance of the
antennna is discussed. From the simulation and theoretical analysis , we can
conclude that the 10dB impedance bandwidth of the monopole decreases when the
iteration level of the fractal structure increases . Then we use the fractal structure to
design the LTCC antenna. We design and manufacture an LTCC antenna for WLAN
IEEE 802.11a. The simulation and measured results are analyzed and discussed.
Finally, we provide a new method which can reduce the cross polariztion level. And
this method is used to reduce the cross polarization of the monopole using the second
iteration level of the Minkowski curve. It is shown that the method does work from
the measurement. This method can reduce the cross polarization of the fractal antenna
and hence find more application in communication systems.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0620106-151417 |
| Date | 20 June 2006 |
| Creators | Chen, Yueh-Chung |
| Contributors | Tzyy-Sheng Horng, Chih-Wen Kuo, Ken-Huang Lin |
| 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-0620106-151417 |
| Rights | not_available, Copyright information available at source archive |
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