圓形環狀槽孔微帶天線之設計

Design of Annular-ring Slot Microstrip Antenna

袁敏事(Min-Shih Yuan) ； 杜健誌(Jian-Zhi Du)

《中華技術學院學報》 35期 (2006/12) Pp. 11-21

https://doi.org/10.7095/JCIT.200612.0011

摘要

本文中設計一個雙頻帶圖形環狀槽孔微帶天線，架構簡單。使用天線模擬軟體 IE3D做天線設計與模擬，在FR4印刷電路板上製作圓形環狀糟孔及耦合微帶饋送線，圖形環狀槽孔的半徑決定天線的兩個共振頻率。經由實作與量測後，其雙諧振頻率分別是2.4GHz及5.8GHz。在2.4GHz時的-10dB阻抗頻寬可達22%，天線最大增益是7.37dBi。在5.8GHz時的-10dB阻抗頻寬可達13.7%，天線最大增益是12.8dBi。可以滿足無線區域網路之室內外使用。

關鍵字

阻抗頻寬 ； 圓形環狀槽孔天線 ； 天線增益

並列摘要

A dual-band broadband annular-ring slot microstrip antenna is designed. Its structure is simple. This antenna is analyzed and optimized by using the IE3D software. The annular-ring slot and coupled microstrip feed-line are built on the FR4 printed board. The two resonant frequencies of the proposed antenna are decided by the radius of the annular-ring slot. The prototype are fabricated and measured. The two resonant frequencies are 2.4GHz and 5.8GHz. At 2.4GHz, input impedance bandwidth is 22% for the S11 ＜ -10 dB, with the peak gain on the order of 7.37dBi. At 5.8GHz, input impedance bandwidth is 13.7% for the S11 ＜ -10 dB, with the peak gain on the order of 12.8Bi. It is suitable for WLAN applications.

並列關鍵字

Impedance Bandwidth ； Annular-ring slot antenna ； Antenna Gain