應用於2.4/5.2 GHz WLAN之雙頻平面槽孔天線

Rectangular Dual-band Planar Slot Antenna for 2.4/5.2 GHz WLAN Application

王耀德(Yan-Der Wang)

《高雄海院學報》 18期 (2003/12) Pp. 63-78

摘要

本論文中，我們將利用矩形平面槽孔天線設計出雙頻帶操作，並利用其雙頻帶操作的特點，在矩形槽孔內嵌入U型金屬片，以激發出其他新的模態，與原先的共振頻率點結合進而產生寬頻，並藉此以操控其雙頻帶在適用於WLAN之工作頻帶範圍內，低頻模態包含2.4 GHz，其頻寬大約為10 %，高頻模態更包含5.2及5.8GHz之寬頻，其頻寬約為33 %，利用IE3D模擬軟體及Ansoft電磁模擬軟體以驗證實驗方法的正確性。故本研究重點係著重於利用矩形平面槽孔天線製作出雙操作頻帶之天線，並利用內嵌入之U型金屬片激發出雙寬頻，並將此雙頻帶操作於適用無線區網之應用頻段上。

關鍵字

槽孔平面天線 ； 微帶線饋入 ； 雙頻 ； 寬頻

並列摘要

By embedding properly U-shaped strip in the rectangular slot antenna, a novel broadband dual-frequency design is proposed and experimentally studied. With the use of a U-shaped strip, the impedance bandwidths, determined from 10-dB return loss, of two operating bands can reach about 10.0% for 2.4 GHz band and 33 % for 5 GHz band. IE3D and Ansoft simulation software are used to identify with the measured results. Operating frequencies across the obtained lower and higher bands are of the same polarization planes. Details of the proposed broadband dual-frequency design are de-scribed, and experimental results of the constructed prototypes are presented and discussed.

並列關鍵字

planar slot antenna ； microstrip-line feed ； dual-band ； broadband