Summary: | 碩士 === 國立臺灣大學 === 電信工程學研究所 === 92 === The CPW-fed multi-band rectangular and oblique spiral slot antennas are studied in this paper. The input impedance and the radiation characteristics of these antennas are investigated using the software package Ensemble. In the design of the antenna, the slot dipole antennas are used as the basic unit.
Then different lengths and widths of the slots in the spiral slot are used to achieve the desired resonant frequencies. The antennas cover the IEEE 802.11a and b frequencies which are 2.4~2.48 GHz, 5.15~5.35 GHz, and 5.725~5.825 GHz.
In order to clarify our design, both the CPW-fed multi-band rectangular and oblique spiral slot antennas are designed and fabricated. Comparing the simulated and experimental results, these antennas are proved to be correct and practical.
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