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研究生:曾傑新
研究生(外文):ZANG, JIX-XING
論文名稱:應用於頻譜監測之超寬頻垂直極化全向性天線
論文名稱(外文):Ultra-Wideband Vertically Polarized Omnidirectional Antenna for Spectrum Monitoring
指導教授:吳俊德吳俊德引用關係黃俊杰黃俊杰引用關係
指導教授(外文):WU, CHUN-TEHUANG, JUNG-JIE
口試委員:吳俊德黃俊杰李佳瀚吳宛玉
口試委員(外文):WU, CHUN-TEHUANG, JUNG-JIELI, JIA-HANWU, WAN-YA
口試日期:2022-07-30
學位類別:碩士
校院名稱:大葉大學
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:2022
畢業學年度:110
語文別:中文
論文頁數:35
中文關鍵詞:雙錐天線超寬頻阻抗改善全向性垂直極化
外文關鍵詞:biconical antennaultra-widebandimpedance improvementomnidirectionalvertical polarization
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本研究目的設計用於頻譜監測應用的超寬頻垂直極化全向性天線,其設計頻段需與許多無限通訊標準兼容,雙錐天線是一種非常適合超寬頻應用的天線,在全向性有著較穩定的場型,本論文設計之雙錐天線工作頻率為1GHz~40GHz,對雙錐天線的阻抗改善使得工作頻寬下實現大約40 : 1的寬阻抗頻寬,電壓駐波比低於2,效率在87~98%以上表明性能良好,天線尺寸直徑為55mm高度62mm。
The purpose of this research is to design an ultra-wideband vertically polarized omnidirectional antenna for spectrum monitoring applications. The design frequency band needs to be compatible with many wireless communication standards. The biconical antenna is a very suitable antenna for ultra-wideband applications. Stable field pattern, the working frequency of the biconical antenna designed in this paper is 1GHz~40GHz, the impedance improvement of the biconical antenna makes it possible to achieve a wide impedance bandwidth of about 40:1 under the working frequency bandwidth, and the voltage standing wave ratio is lower than 2. The efficiency above 87–98% indicates good performance. The antenna size is 55mm in diameter and 62mm in height.
目錄
簽名頁
封面內頁
中文摘要 iii
ABSTRACT iv
誌謝 v
目錄 vi
圖目錄 viii
表目錄 x
第一章 緒論 1
1.1研究動機 1
1.2研究目的 2
1.3論文大綱 2
第二章 天線概論 3
2.1天線概論 3
2.1.1偶極天線(Dipole Antenna) 4
2.1.2單極天線(Monopole Antenna) 4
2.1.3寬頻天線(Broadband Antenna) 6
2.1.4微帶天線(Microstrip Antenna) 6
2.1.5槽孔天線(Slot Antenna) 7
2.2天線參數 8
2.2.1反射係數 8
2.2.2增益 8
2.2.3天線效率 9
2.2.4天線方向性 9
第三章 雙錐天線設計 11
3.1 天線設計 11
3.1.1雙錐天線饋入方式 11
3.1.2雙錐天線影響性能參數 13
3.1.3對稱雙錐天線與不對稱雙錐天線設計 14
第四章 全向性垂直極化天線設計 16
4.1全向性天線設計規格 16
4.2全向性雙錐天線設計流程 18
4.2.1天線設計流程 18
4.2.2對稱雙錐天線 19
4.2.3加入圓環結構 20
4.2.4錐緣曲線變化結構 21
4.2.5錐角變化結構 22
4.2.6雙錐天線饋入區阻抗改善 23
4.2.7天線模擬場型圖 26
4.2.8雙錐天線支撐問題 30
第五章 結論 32
參考文獻 33

[1] X. Quan and R. Li, "A Broadband Dual-Polarized Omnidirectional Antenna for Base Stations," in IEEE Transactions on Antennas and Propagation, vol. 61, no. 2, pp. 943-947, Feb. 2013.
[2] Olvhammar, Simon. "A New Circularly Polarized Biconical Horn for Spacecraft TT&C," 2018.
[3] M. Skiljo, Z. Blazevic and D. Poljak, "Ultra-wideband parabolic Bicone Antenna for Ground Penetrating Radar," 2015 23rd International Conference on Software, Telecommunications and Computer Networks (SoftCOM), 2015, pp. 83-86, doi: 10.1109/SOFTCOM.2015.7314128.
[4] Manoochehri, O, Darvazehban, A, Salari, MA, Khaledian, S, Erricolo, D, Smida, B. "A Dual-Polarized Biconical Antenna for Direction Finding Applications from 2 to 18 GHz," Microw Opt Technol Lett. 2018; 60: 1552– 1558. , doi: 10.1002/mop.31195
[5] S. He, L. Chang and Z. Z. Chen, "Design of a Compact Biconical Antenna Loaded With Magnetic Dipoles," in IEEE Antennas and Wireless Propagation Letters, vol. 16, pp. 840-843, 2017, doi: 10.1109/LAWP.2016.2608920.
[6] S. He, L. Chang and Z. Z. Chen, "Design of a Compact Biconical Antenna Loaded With Magnetic Dipoles," in IEEE Antennas and Wireless Propagation Letters, vol. 16, pp. 840-843, 2017, doi: 10.1109/LAWP.2016.2608920.
[7]S. N. Samaddar and E. L. Mokole, "Biconical antennas with unequal cone angles," in IEEE Transactions on Antennas and Propagation, vol. 46, no. 2, pp. 181-193, Feb. 1998, doi: 10.1109/8.660962.
[8]A. A. Beletsky, "Excitation of the infinite perfect conducting bicone with impedance azimutal slots," Conference Proceedings 2000 International Conference on Mathematical Methods in Electromagnetic Theory (Cat. No.00EX413), 2000, pp. 283-285 vol.1, doi: 10.1109/MMET.2000.888583.
[9]A. A. Beletsky, "Excitation of the infinite perfect conducting bicone with impedance azimutal slots," Conference Proceedings 2000 International Conference on Mathematical Methods in Electromagnetic Theory (Cat. No.00EX413), 2000, pp. 283-285 vol.1, doi: 10.1109/MMET.2000.888583
[10]Javad Ghalibafan, Seyed Mohammad Hashemi, "Design of an Asymmetric Capped Biconical Antenna for Constant Beam Direction Over a Desired Range of Frequencies," AEU - International Journal of Electronics and Communications, Volume 84, 2018, Pages 27-33, ISSN 1434-8411, doi: 10.1016/j.aeue.2017.11.017.
[11]Dastranj, A. and Abbasi Arand, B. (2015), "Design of a dual-polarized omnidirectional antenna for broadband applications," Int J RF and Microwave Comp Aid Eng, 25: 591-600. doi: 10.1002/mmce.20897
[12]Dastranj, A. and Abbasi Arand, B. (2015), "Design of a dual-polarized omnidirectional antenna for broadband applications," Int J RF and Microwave Comp Aid Eng, 25: 591-600. doi: 10.1002/mmce.20897

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