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| 題名: | Design of frequency-agile microstrip antennas with conical-beam radiation |
| 作者: | Tsai, Jia-Fu;Row, Jeen-Sheen |
| 貢獻者: | 電機工程學系 |
| 關鍵詞: | Microstrip antenna;Frequency agility;Conical radiation |
| 日期: | 2011-04
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| 上傳時間: | 2012-06-05T02:01:24Z
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| 出版者: | Wiley |
| 摘要: | A microstrip antenna with frequency agility is described in this article.The antenna has a circular radiating patch and operates at its TM01 mode to generate omnidirectional radiation across the azimuthal plane. To change the resonant frequency, a capacitor is introduced and connected to the antenna input port in series. With the increasing of capacitance, the resonant frequency is decreased while the resonant resistance and radiation characteristic nearly remain constant. Experimental results indicate that the design can provide a frequency tunable range of 22%; moreover, good impedance matching and stable radiation pattern are also obtained in the range. |
| 關聯: | Microwave and Optical Technology Letters, 53(4): 783-785 |
| 顯示於類別: | [電機工程學系] 期刊論文
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