請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/57233
標題: | 應用於極化分集之雙圓極化微帶天線 Dual Circularly Polarized Patch Antenna for Polarization Diversity Applications |
作者: | Yung-Feng Tsai 蔡永峰 |
指導教授: | 許博文 |
關鍵字: | 微帶天線,圓極化,極化分集, patch antenna,circularly polarized,polarization diversity, |
出版年 : | 2014 |
學位: | 碩士 |
摘要: | 本論文提出了一個應用於無線通信統之俱極化分集雙圓極化微帶天線。我們所提出的天線設計具有結構簡單並且易於製造的特性。藉由截角的方式產生圓極化。將兩矩形微帶天線擺放在垂直位置,則可改變截角位置來產生左手圓極化和右手圓極化。
此外,為了增加兩微帶天線間的隔離度,在天線之間擺放了一條帶狀金屬。量測結果顯示隔離度大概增加了3~4 dB。然而頻寬受到帶狀金屬的影響而略微下降且圓極化亦受到干擾。此方法沒有改變天線外型。保持天線結構較為簡單並且易於製造的優勢。 以上所提出之設計過程及天線架構之模擬與實驗驗證,於本論文中都會完整的探討。 A dual circularly polarized patch antenna with polarization diversity is proposed for wireless communication applications. The proposed antenna has a simple structure and is easy to fabricate. The circular polarization can be obtained by truncating the corners at the square patch. The two patch antennas are placed perpendicular to each other, then the position of the truncated corner can be changed to generate the left hand and right hand circularly polarized circular polarizations. In order to increase the isolation between the two patches, a strip is placed between the two patches. The isolation is then increased by about 3 – 4 dB in the measurement result. Because of the strip, the impedance bandwidth is slight decreased slightly, and the circular polarization is also interfered. This method does not change the antenna structure, and the proposed antenna still has a simple structure and is easy to fabricate. Details of the antenna design are discussed. Experimental and simulated results are also presented and discussed. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/57233 |
全文授權: | 有償授權 |
顯示於系所單位: | 電信工程學研究所 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-103-1.pdf 目前未授權公開取用 | 644.03 kB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。