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研究生:王志祥
研究生(外文):Chih-Hsiang Wang
論文名稱:應用於Wi-Fi分享器之雙極天線陣列設計
論文名稱(外文):Design of Printed Dipole Antenna Array for Wi-Fi Access Point Application
指導教授:丘增杰
指導教授(外文):Tsen-Chieh Chiu
學位類別:碩士
校院名稱:國立中央大學
系所名稱:電機工程學系
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2018
畢業學年度:106
語文別:中文
論文頁數:97
中文關鍵詞:天線陣列雙極天線全向性輻射
外文關鍵詞:antenna arraydipole antennaOmnidirectional radiation
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本論文針對串並聯線性天線陣列與主波瓣偏轉改善做設計與探討。在天線陣列部分,我們採用平面式雙極天線,各單元之間使用PPL (Parallel plate line)串聯,將兩路串聯天線陣列使用100 Ω之PPL與四分之一阻抗轉換器來進行並聯饋入,並在100 Ω之PPL中鑽孔使用50 Ω同軸電纜做為整體天線饋入。此串並聯饋入方法可以有效抑制主波瓣偏轉現象,使頻段內之偏轉角度維持在正負5度內。
本天線陣列分別設計於FR4與Kappa 438基板上,主要觀察板材的介質損耗對於天線增益的影響程度,並討論串聯能量均分的成效。
天線頻寬以-10 dB以下的反射係數定義下,在5.15 GHz至5.85 GHz皆可涵蓋,可滿足5 GHz頻段之Wi-Fi應用與WHDI應用要求。在Kappa 438製作之十二個天線單元之天線陣列中,可達到頻帶內的峰值增益差異在1 dB內,量測平均峰值增益為7.26 dBi,最大峰值增益達7.70 dBi。本論文使用全波模擬軟體為HFSS,電路模擬軟體為ADS。
Designs of series-parallel linear antenna array with parallel plate line (PPL) are discussed in the thesis. In the section regarding the antenna array, two series antenna arrays are fed in parallel by using a 100-Ω PPL and a quarter-wavelength impedance transformer. In addition, a 50 Ω coaxial cable is used as the overall antenna feed. The serial-parallel feeding method can suppress the frequency scanning and maintain the deflection angle in frequency band within 5 degrees.
The antenna array is respectively designed on the FR4 and Kappa 438 substrates. The influence of the dielectric loss on the antenna gain and the effect of series energy sharing among elements are observed and discussed.
The specified frequency band is from 5.15 GHz to 5.85 GHz, which is for the Wi-Fi and WHDI applications. In the antenna array of twelve elements produced on the Kappa 438 substrate, the gain deviation within 1 dB in the band has been achieved, with a measured average peak gain of 7.26 dBi and a maximum peak gain of 7.70 dBi. The full-wave simulation software used in the thesis is HFSS, and the circuit simulation software is ADS.
摘要 Ⅰ
Abstract Ⅱ
致謝 Ⅲ
目錄 Ⅳ
圖目錄 Ⅵ
表目錄 IX
第一章 序論 1
1-1. 前言 1
1-2. 研究動機與目的 2
1-3. 文獻回顧 3
1-4. 章節概要 5
第二章 雙極天線陣列設計 6
2-1. 前言 6
2-2. 理論設計 6
2-3. 串聯式饋入雙極天線陣列設計 8
2-4. 能量均分天線增益提昇與主波瓣偏轉現象(Frequency scanning) 15
2-4-1. 能量均分提昇天線增益 15
2-4-2. 主波瓣偏轉現象(Frequency scanning) 21
第三章 FR4板材雙極天線陣列 24
3-1. 前言 24
3-2. 串並聯饋入雙極天線陣列 24
3-2-1. 八個天線單元 24
3-2-2. 十個天線單元 31
3-2-3. 天線陣列增益飽和 37
3-3. 量測結果比較 38
3-3-1. 八個天線單元 38
3-3-2. 十個天線單元 43
第四章 Kappa 438板材雙極天線陣列 48
4-1 前言 48
4-2 串並聯饋入雙極天線陣列 48
4-2-1 八個天線單元 48
4-2-2 十個天線單元 54
4-2-3 十二個天線單元 60
4-3 量測結果比較 66
4-3-1 八個天線單元 66
4-3-2 十個天線單元 71
4-3-3 十二個天線單元 76
第五章 結論與總結 81
5-1 結論 81
5-2 總結 81
參考文獻 83
[1] Kin-Lu Wong, Fu-Ren Hsiao, and Tzung-Wern Chiou, "Omnidirectional Planar Dipole Array Antenna," in IEEE Transactions on Antennas and Propagation, vol. 5, pp. 13054-13061, June 2017.
[2] Chen Ma, Zhenqi Kuai, Member IEEE, Xiaowei Zhu, Member IEEE, Chang Liu, "A Parallel Feeding Omnidirectional Array Antenna," in Antennas and Propagation Society International Symposium (APSURSI), July 2012.
[3] Matthew Straughn, Chi-Chih Chen, "Series-Fed Planar Dipole Array Antenna," in 2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, pp. 2153–2154, July 2017.
[4] Guang-Hua Sun, Sai-Wai Wong, Hang Wong, "A Broadband Antenna Array Using Full-Wave Dipole," in IEEE Access, vol. 5, pp. 13054-13061, June 2017.
[5] Junho Yeo, Jong-Ig Lee, "Modified Series-Fed Two-Dipole-Array Antenna With Reduced Size," in IEEE Antennas and Wireless Propagation Letters, vol. 12, pp. 214-217, February 2013.
[6] Zhenqi Kuai, Pengfei Wu, Xiaowei Zhu, "Design of Broad Band Arrays of Printed Dipoles," in 2007 Asia-Pacific Microwave Conference, pp. 1-4, December 2007.
[7] Zhiya Zhang, Guang Fu,Shuxi Gong, Shaoli Zuo and Tao Ran, "Printed 6-element dipole array antenna for omnidirection applied in WiMAX," in 2010 6th International Conference on Wireless Communications Networking and Mobile Computing (WiCOM), pp. 1-4, September 2010.
[8] Wenlong Zhou, Juhua Liu, and Yunliang Long, "A Broadband and High-Gain Planar Complementary Yagi Array Antenna With Circular Polarization," in IEEE Transactions on Antennas and Propagation, vol. 65, issue 3, pp. 1446-1451, January 2017.
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