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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 林怡成(Yi-Cheng Lin) | |
dc.contributor.author | Yi-Cheng Yang | en |
dc.contributor.author | 楊以誠 | zh_TW |
dc.date.accessioned | 2021-06-08T06:06:51Z | - |
dc.date.copyright | 2007-07-26 | |
dc.date.issued | 2007 | |
dc.date.submitted | 2007-07-18 | |
dc.identifier.citation | [1] D.E. Isbell, “Log periodic dipole arrays”, Antennas and Propag., IEEE Transactions on, Volume 8, Issue 3, May 1960 Page:260 - 267.
[2] R.L. Carrel, “The design of log-periodic dipole antenna”, IRE International Convention Record, Volume 9, Part 1, Mar 1961 Page:61 - 75. [3] Jones K., Mayes P., ”Continuously Scaled Transmission Lines with Applications to Log-Periodic Antennas”, Antennas and Propag., IEEE Transactions on, Volume 17, Issue 1, Jan 1969 Page:2 – 9. [4] Bantin C., Balmain K., “Study of Compressed Log-Periodic Dipole Antennas”, Antennas and Propag., IEEE Transactions on, Volume 18, Issue 2, Mar 1970 Page:195 - 203. [5] Samuel C. Kuo, “Size-reduced Log-Periodic Dipole Array”, Antennas and Propag. Society International Symposium, 1970, Volume 8, Sep 1970 Page:151 – 158. [6] Wolter J., “Solution of Maxwell’s Equations for log-periodic dipole antennas”, Antennas and Propag., IEEE Transactions on, Volume 18, Issue 6, Nov 1970 Page:734 - 741. [7] Balmain K., Nkeng J., “Asymmetry Phenomenon of Log-Periodic Dipole Antennas”, Antennas and Propag., IEEE Transactions on, Volume 24, Issue 4, Jul 1976 Page:402 - 410. [8] Peixeiro C., “Design of log-periodic dipole antennas”, Microwave, Antennas and Propag., IEE Proceedings H, Volume 135, Issue 2, Apr 1988 Page:98 - 102. [9] C. A. Balanis, Antenna Theory: Analysis and Design. New York: Harper & Row, 1983 [10] R.R. Pantoja, A. R. Sapienza, and F. C. Medeiros, “A microwave printed planar log-periodic dipole array antenna”, Antennas and Propag., IEEE Transactions on, Volume 35, Issue 10, Oct. 1987 Page:1176 - 1178. [11] K.M.P. Aghdam, R. Faraji-Dana and J. Rashed-Mohassel, “Compact dual-polarization planar log-periodic antennas with integrated feed circuit”, Microwave, Antennas and Propag., IEE Proceedings, Vol. 152, Issue 5, Oct. 2005 Page:359 - 366. [12] Feng-Wei Yao, Shun-Shi Zhong, “Broadband CPW-fed folded-slot Log-Periodic antenna”, Microwave, Antenna, Propagation, and EMC Technologies for Wireless Communications, Vol.1, 8-12, Aug. 2005 Page:116 - 118 Vol. 1. [13] Do-Hoon Kwon, “A Wideband Balun and Vertical Transition Between Conductor-Backed CPW and Parallel-Strip Transmission Line”, IEEE Microwave and Wireless Components Letters, Vol. 16, Issue 4, April 2006 Page:152 - 154. [14] B. A. Karr, T. E. Durham, M. T. Chryssomallis, J. A. Kralovec, G. K. Gothard and C. G. Christodoulou, “Investigation of a Broad-Band Cavity-Backed Array Antenna”, Antennas and Propag., IEEE Transactions on, Vol. 52, Issue 7, July 2004 Page: 1913 - 1916. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/25258 | - |
dc.description.abstract | 對數週期偶極天線在理論上是屬於一種非頻變且具有穩定增益的線性極化天線。本論文針對平面化對數週期偶極天線提出改良的設計結構並加以論述。平面化對數週期偶極天線於近年提出,然而其交差極化隔離度之效能並不理想。本論文提出利用帶線型態之饋入結構將能量傳輸到天線,藉由接地面屏蔽之效果使得其交差極化隔離度可以明顯地獲得改善。另外,為了實現完全平面化的饋入結構,吾人更進一步使用覆背式共面波導傳輸線結構來轉接至此平面化對數週期偶極天線。本論文成功設計出1GHz至5GHz之對數週期偶極天線,其側向增益約為1dBi,交差極化隔離度約20dB,由實際製作電路板所做之量測與模擬結果具有一致性。最後,我們並利用反射板來達成單一方向輻射場型之目標,其側向之平均增益增加至4dBi。 | zh_TW |
dc.description.abstract | Theoretically, the log-periodic dipole antenna is a linearly polarized frequency independent antenna type with stable gain patterns. In this thesis, we investigate and propose a new design of the planar log-periodic dipole antenna. The planar PCB log-periodic dipole antenna was proposed recently, however the cross-polarization isolation performance is not sufficient. In this study, we conquer this problem by using a stripline type feeding structure with shielding ground plane to improve the cross polarization isolation performance. In addition, we extend the design with a conductor-backed coplanar waveguide transmission line to realize the fully planar feeding structure. The proposed antenna is successfully simulated, built, and tested with the broadside gain about 1dBi and cross polarization isolation about 20dB around broadside in the 1~5GHz band. A good agreement is achieved between the measured performances and the simulated results. At last, we employ a slanted reflector to improve the antenna gain performance up to 4dBi with a preferred unidirectional pattern. | en |
dc.description.provenance | Made available in DSpace on 2021-06-08T06:06:51Z (GMT). No. of bitstreams: 1 ntu-96-P94942004-1.pdf: 4649558 bytes, checksum: 4714f44b7a9ed13591abe06db02154d6 (MD5) Previous issue date: 2007 | en |
dc.description.tableofcontents | 第一章 簡介 1
1.1 研究動機 1 1.2 章節概要 3 第二章 對數週期偶極天線之基礎研究與討論 4 2.1 前言 4 2.2 設計參數與基本概念 4 2.3 各類型對數週期天線 11 第三章 微帶線饋入對數週期偶極天線實現在FR4板之研究 14 3.1 平面化對數週期偶極天線 14 3.1.1 天線結構圖 14 3.1.2 模擬結果 16 3.2 微帶線饋入平面化對數週期偶極天線之模擬 22 3.2.1 天線結構圖 22 3.2.2 模擬結果 24 第四章 饋入結構與交差極化特性之改善 30 4.1 帶線形態之平面化對數週期偶極天線 30 4.1.1 天線結構圖 30 4.1.2 模擬結果 34 4.2 同軸線饋入結構帶線形態對數週期偶極天線 40 4.2.1 天線結構圖 40 4.2.2 模擬結果比較 41 4.2.3 模擬與量測結果 42 4.3 共面波導垂直饋入平面化對數週期偶極天線 49 4.3.1 天線結構圖 49 4.3.2 模擬結果 53 4.4 共面波導垂直不對稱性饋入平面化對數週期偶極天線 60 4.4.1 天線結構圖 60 4.4.2 參數模擬結果 62 4.4.3 不對稱饋入結構模擬量測結果 65 4.5 反射板設計 72 4.5.1 反射板結構 72 4.5.2 模擬與量測結果 74 第五章 結論 81 參考文獻 82 | |
dc.language.iso | zh-TW | |
dc.title | 覆背式共面波導饋入平面對數週期天線之研製 | zh_TW |
dc.title | Design and Implementation of Conductor-Backed CPW Fed Planar Log-Periodic Antennas | en |
dc.type | Thesis | |
dc.date.schoolyear | 95-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 許博文(Powen Hsu),莊晴光(Ching-Kuang C.Tzuang),張道治(Dau-Chyrh Chang),鍾世忠(Shyh-Jong Chung) | |
dc.subject.keyword | 覆背式共面波導,對數週期天線, | zh_TW |
dc.subject.keyword | Conductor-Backed CPW,Log-Periodic Antennas, | en |
dc.relation.page | 83 | |
dc.rights.note | 未授權 | |
dc.date.accepted | 2007-07-20 | |
dc.contributor.author-college | 電機資訊學院 | zh_TW |
dc.contributor.author-dept | 電信工程學研究所 | zh_TW |
顯示於系所單位: | 電信工程學研究所 |
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