利用電磁能隙結構抑制三頻天線之不通訊頻帶 黃俊諺、吳俊德
E-mail: 321368@mail.dyu.edu.tw
摘 要
本文利用共平面矩形槽孔設計天線，運用單頻天線加入環型線路共振其他頻帶，利用HFSS電磁場數值模擬軟體探討各類 參數，以及單頻到三頻各架構的共振機制，了解機制與參數的影響，透過調整後，使2.4GHz單頻矩形槽孔天線改變成符 合DCS／PCS、WLAN、WiMAX等規範天線，使天線運用更加廣泛。本篇也加入了EBG架構抑制不必要頻帶，並探討加 入EBG後對天線機制的各種影響。
關鍵詞 : 共平面波導天線
目錄
目錄 封面內頁 簽名頁 授權書．．．．．．．．．．．．．．．．．．．．．．．．．iii 中文摘要．．．．．．．．．．
．．．．．．．．．．．．．．iv 英文摘要．．．．．．．．．．．．．．．．．．．．．．．． v 致謝．．．．．．．
．．．．．．．．．．．．．．．．．．．vii 目錄．．．．．．．．．．．．．．．．．．．．．．．．．．viii 圖目錄
．．．．．．．．．．．．．．．．．．．．．．．．． x 表目錄．．．．．．．．．．．．．．．．．．．．．．．．
．xii 第一章 緒論 1.1 前言．．．．．．．．．．．．．．．．．．．．1 1.2 研究動機．．．．．．．．．．．．．．．
．．．2 1.3 研究目的．．．．．．．．．．．．．．．．．．4 第二章 設計多頻天線 2.1 單頻天線．．．．．．．．．
．．．．．．．．．5 2.2 雙頻天線．．．．．．．．．．．．．．．．．．7 2.2.1 探討外環架構參數影響．．．．．．．
．．．．10 2.2.2 增加外環長度對天線的影響．．．．．．．．．14 2.3 三頻天線．．．．．．．．．．．．．．．．．
．18 第三章 EBG天線架構 3.1 EBG種類．．．．．．．．．．．．．．．．．．22 3.2 探討EBG架構對天線的影響．．
．．．．．．．24 3.3 探討EBG對頻寬的影響．．．．．．．．．．．27 第四章 模擬與實作 4.1 三頻天線的模擬與實作
．．．．．．．．．．．29 4.2 EBG結構的模擬與實作．．．．．．．．．．．．34 第五章 總結與未來之研究．．．．
．．．．．．．．．．．．39 參考文獻．．．．．．．．．．．．．．．．．．．．．．．．40 參考文獻
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