資料載入中.....
|
請使用永久網址來引用或連結此文件:
http://ir.ncue.edu.tw/ir/handle/987654321/10989
|
題名: | A reconfigurable design for bandwidth enhancement of circularly polarized slot antennas |
作者: | Hsieh, Tsung-Hsun;Row, Jeen-Sheen |
貢獻者: | 電機工程學系 |
關鍵詞: | Slot antenna;Circular polarization;Reconfigurable antenna |
日期: | 2010-06
|
上傳時間: | 2012-06-05T02:01:17Z
|
出版者: | Wiley |
摘要: | A reconfigurable design is proposed to improve the circular polarization (CP) operating bandwidth of an annular-ring slot antenna fed with an L-shaped coupling strip. The design involves four voltage-controlled varactor diodes, which are placed below the slot and symmetrically distributed along the circumference of the slot. When all antenna dimensions remain constant, the CP operating frequency of the slot antenna can be decreased by varying dc voltage values. In addition, theses CP operating frequencies, which are corresponding to different dc voltage values can form a successive frequency band, and the available CP bandwidth is thus improved. Experimental results indicate that with the reconfigurable design, the 3-dB axial-ratio CP bandwidth can be increased by a factor of 4 for the annular-ring slot antenna with a reflector. |
關聯: | Microwave and Optical Technology Letters, 52(6): 1377-1380 |
顯示於類別: | [電機工程學系] 期刊論文
|
文件中的檔案:
檔案 |
大小 | 格式 | 瀏覽次數 |
index.html | 0Kb | HTML | 647 | 檢視/開啟 |
|
在NCUEIR中所有的資料項目都受到原著作權保護.
|