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極寬頻帶偏心圓形環狀縫孔天線之設計

Design of Extreme Wideband Eccentric Annular Slot Antenna

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摘要


本文中設計一個極寬頻帶偏心圖形環狀縫孔天線,架構簡單。使用天線模擬軟體IE3D做天線設計與模擬,在FR4印刷電路板上製作偏心圓環狀縫孔及耦合微帶饋送線。經由實作與量測,-10dB的輸入阻抗頻寬是120%,操作頻率可從2GHz到8GHZ,天線最大增益是3.5dBi,因此本天線可應用在無線區域網路中。

並列摘要


An extreme wideband eccentric annular slot antenna is designed. Its structure is simple. This antenna is analyzed and optimized by using the IE3D software. The eccentric annular slot and coupled microstrip feed-line are built on the FR4 printed board. The prototype are fabricated and measured. The input impedance bandwidth is 120% for the S11<-10dB, and the operational frequency is from 2GHz to 8GHz. The antenna peak gain is 3.5dBi. This antenna can be used in the WLAN applications.

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