多頻段雙折疊對稱平面微帶天線之設計

Design of a Dual Folded Symmetry Planar Microstrip Antenna for Multiband Operation

袁敏事(Min-Shin Yuan) ； 向沛紳(Pei-Shen Hsiang)

《中華科技大學學報》 49期 (2011/10) Pp. 37-48

https://doi.org/10.7095/JCUST.201110.0037

摘要

本文設計一款多頻段雙折疊對稱平面微帶天線，其架構包含雙折疊對稱輻射貼片、雙矩形接地面、崁入在接地面上之雙L形槽孔及共平面波導饋送微帶線。雙折疊對稱輻射貼片能增長電流路徑產生低頻，雙L形槽孔則能使阻抗頻寬大幅增加。從分析中可得知模擬與量測之阻抗頻寬具有良好之一致性，操作頻段涵蓋GSM、DCS、PCS、UMTS及WLAN (2.4 GHz)等無線通訊系統。

關鍵字

雙折疊對稱輻射貼片 ； 雙L槽孔 ； 平面微帶天線

並列摘要

A novel dual folded symmetry planar microstrip antenna for multiband operation is presented. The proposed antenna is consists of dual folded symmetry radiation patch, dual rectangular ground plane with embedded dual L shaped slit and CPW feeder. The dual folded symmetry radiation patch can increase the current path length and get lower resonance frequency. The embedded dual L shaped slit in rectangular ground plane can increase the impedance bandwidth. Agreement between simulations and measurements is very good. The result indicates that the novel design can obtain better multiband characteristic which covers GSM, DCS, PCS, UMTS and WLAN (2.4 GHz) bands.

並列關鍵字

Index Terms-Dual folded symmetry radiation patch ； Dual L shaped slits ； Planar microstrip antenna