![]() |
|
以作者查詢圖書館館藏 、以作者查詢臺灣博碩士 、以作者查詢全國書目 、勘誤回報 、線上人數:31 、訪客IP:18.226.34.47
姓名 洪璽剴(Hsi-Kai Hung) 查詢紙本館藏 畢業系所 電機工程學系 論文名稱 共平面波導饋入之寬頻雙圓極化天線 相關論文 檔案 [Endnote RIS 格式]
[Bibtex 格式]
[相關文章]
[文章引用]
[完整記錄]
[館藏目錄]
至系統瀏覽論文 ( 永不開放)
摘要(中) 本論文主要提出一個雙圓極化槽孔天線的設計,進而相繼提出一些圓極化天線的設計方法與概念,達到增進圓極化軸比頻寬的目的,並同時具有寬頻的 10-dB 阻抗頻寬和良好的隔離度。
首先以共平面波導槽孔天線做為研習,製作在介質基板 FR4 板材上,並利用兩個 T 形饋入端達成雙極化的特性。其次,為了改善兩端口之間的隔離度,在兩饋入線之間的槽孔加入不同形狀的接地金屬貼片,避免能量大量的耦合至另一饋入端。再者,藉由增加一些環狀或非對稱的接地金屬貼片架構,並調整其垂直與水平段金屬貼片長度,可以形成良好的圓極化操作,並且天線的圓極化和阻抗匹配可分別獨立完成。最後,適當的調整饋入線的架構,藉由改變金屬貼片形狀或長度,來優化天線的整體響應,使其能夠擁有寬頻的 10-dB 阻抗頻寬和圓極化軸比頻寬,完成寬頻雙圓極化槽孔天線的設計。
本論文所提出的電路皆由以上概念設計而成,於本文中將有電路的設計原理、參數分析、模擬結果與實作結果的比較。摘要(英) The thesis will go through the process that how we designed the dual circularly polarized slot antennas. We proposed some design methods to improve the axial-ratio
bandwidth, 10-dB impedance bandwidth and isolation simultaneously.
First, we applied the design concept of a CPW-fed slot antenna, and fabricated on the FR-4 substrate. By using two T-shaped feeding lines to achieve the characteristics
of dual polarization. At the next step, we added a grounded strip beside both two feeding lines to improve the isolation between these two ports. Then, by adding some ring-shaped or asymmetric grounded strips and adjusting the length of these vertical and horizontal strips, a good circular polarization operation can be formed. In the meanwhile, the circular polarization operation and impedance matching can be achieved independently. In the last step, we fined tune the structure of two feeding lines by changing their shapes and lengths to optimize the responses of the antenna. By
applying all above processes, we successfully designed the dual circularly polarized slot antennas.
All design methods, parameters analysis, comparison results between simulation and measurement are discussed and presented in the thesis.關鍵字(中) ★ 槽孔天線
★ 雙圓極化
★ 寬頻天線關鍵字(英) ★ slot antenna
★ dual circularly polarized
★ broadband antenna論文目次 摘要……………………………………………………………………….…...………I
Abstract………………………………………………………………..…….……….II
目錄………………………………………………………………...…….………….III
圖目錄……………………………………………………………………….………..V
表目錄……………………………………………………………………….………..X
第一章 緒論……………………………………………………………………….….1
1-1 研究動機……………………………………………………………………….1
1-2 文獻回顧……………………………………………………………………….2
1-3 論文內容架構………………………………………………………………….8
第二章 天線原理與應用……………………………………………………………..9
2-1 共平面波導結構………………………………………………………………..9
2-2 偶極天線介紹…………………………………………………………………11
2-3 電磁波極化分析………………………………………………………...……14
2-3.1 線性極化………………………………………………...…...…………..15
2-3.2 橢圓極化………………………………………………...……….………15
2-3.3 圓極化…………………………………………………...……….………16
2-4 雙圓極化原理……………………………………...……….………………...17
2.5 天線設計流程……………………………………...……….………………...19
第三章 具倒 L 形金屬貼片之寬頻雙圓極化槽孔天線…...………………………21
3-1 天線一,共平面波導饋入結構與參數分析…………………..……………23
3-2 天線二,加入背板倒 L 形金屬貼片之結構與參數分析…………………..26
3-3 天線三,加入正方形與斜 45°接地金屬貼片之結構與參數分析…………29
3-3.1 天線三,斜 45°長方形金屬貼片 L5參數分析…………………………30
3-3.2 天線三,正方形金屬貼片 L6 參數分析…………...……………………30
IV
3-4 結論………………………………...……….………………………………...33
3-5 天線的量測與比較…………………………………………………...………36
第四章 具三角形金屬貼片之寬頻雙圓極化槽孔天線……………………………43
4-1 天線一,共平面波導饋入結構與參數分析………………………………...45
4-2 天線二,加入正方形接地金屬貼片之結構與參數分析…………………...47
4-3 天線三,加入直角三角形金屬貼片之結構與參數分析…………………...49
4-4 天線四,加入 L 形接地金屬貼片之結構與參數分析……………………..52
4-4.1 天線四,L 形金屬貼片 L4 參數分析…………………………...………53
4-4.2 天線四,L 形金屬貼片 L5 參數分析…………………………...………54
4-4.3 天線四,T 形饋入線 L1 參數分析……………………………………...55
4-5 結論……………………………….…………………………………………..58
4-6 天線的量測與比較……………………………………………………...……61
第五章 具 U 形槽孔之寬頻雙圓極化天線………………………………………...70
5-1 天線一,共平面波導饋入結構與參數分析………………………………...72
5-2 天線二,加入圓形接地金屬貼片之結構與參數分析……………………...75
5-3 天線三,增加饋入線下方接地面面積之結構與參數分析………………...78
5-4 天線四,改變饋入線末端形狀之結構與參數分析………………………...81
5-5 結論…………………………………………………………………………...84
5-6 天線的量測與比較…………………………………………………………...87
第六章 結論…………………………………………………………………………96
參考文獻……………………………………………………………………………..99參考文獻 [1] Izadpanah, A. Parameterization of GPS L1 Multipath Using a Dual Polarized RHCP/LHCP Antenna. Ph.D. Thesis, University of Calgary, Calgary, AB, Canada, 2009.
[2] Groves, P.D.; Jiang, Z.; Skelton, B.; Cross, P.A.; Lau, L. Novel Multipath Mitigation Methods using a Dual-polarization Antenna. In Proceedings of the 23rd International Technical Meeting of the Satellite Division of the Institute of Navigation, Portland, OR, USA, 21–24 September 2010; pp. 140–151.
[3] Santiago Sierra-Garcia and Jean-Jacques Laurin, “Study of a CPW inductively coupled slot antenna,” IEEE Trans. Antennas Propaga., vol. 47, no. 1, pp. 58–64,
Jan. 1999.
[4] H.-D. Chen, “Broadband CPW-fed square slot antennas with a widened tuning stub,” IEEE Trans. Antennas Propag., vol. 51, no. 8, pp. 1982–1986, Aug. 2003.
[5] S.-Y. Chen and P. Hsu, “Broad-band radial slot antenna fed by coplanar waveguide for dual-frequency operation,” IEEE Trans. Antennas Propag., vol. 53, no. 11, pp. 3448–3452, Nov. 2005.
[6] J.-Y Chiou, J.-Y. Sze, and K.-L. Wong, “A broad-band CPW-fed strip-loaded square slot antenna,” IEEE Trans. Antennas Propag., vol. 51, no. 4, pp. 719–721,April.
2003.
[7] W. H. Tu, “Compact harmonic-suppressed coplanar waveguide-fed inductively coupled slot antenna,” IEEE Antennas and Wireless Propagation Letters, vol. 7, pp.
535–545, 2008.
[8]J. S. Row, "The design of a squarer-ring slot antenna for circular polarization", IEEE Trans. Antennas Propag., vol. 53, no. 6, pp. 1967-1972,Jun. 2005. 100
[9] J. Y. Sze, K. L. Wong, and C. C. Huang, “Coplanar waveguide-fed square slot antenna for broadband circularly polarized radiation,” IEEE Trans. Antennas
Propag., vol. 51, no. 8, pp. 2141–2144, Aug. 2003.
[10] J. Y. Sze, J. C. Wang, and C. C. Chang, “Axial-ratio bandwidth enhancement of asymmetric-CPW-fed circularly-polarized square slot antenna,” Electron. Lett., vol. 44, no. 18, pp. 1048–1049, Aug. 2008.
[11] J.-Y. Sze, C.-I. G. Hsu, Z.-W. Chen, and C.-C. Chang, “Broadband CPW-fed circularly polarized square slot antenna with lightening-shaped feed line and
inverted-L grounded strips,” IEEE Trans. Antennas Propag., vol. 58, no. 3, pp. 973–977, Mar. 2010.
[12] Y. B. Chen, Y. C. Jiao, and F. S. Zhang, “Polarization reconfigurable CPW-fed square slot antenna using pin diodes,” Microw. Opt. Technol. Lett., vol. 49, no. 6, pp. 1233–1236, 2007.
[13] G. Zhao, L.-N. Chen, and Y.-C. Jiao, “Design of a broadband dual circularly polarized square slot antenna,” Microw. Opt. Technol. Lett., vol. 50, no. 10, pp. 2639–2642, Oct. 2008.
[14] R. K. Saini and S. Dwari, “A broadband dual circularly polarized square slot antenna,” IEEE Trans. Antennas Propag., vol. 64, no. 1, pp. 290–294, Jan. 2016.
[15] C. DS and S. S. Karthikeyan, “A novel broadband dual circularly polarized microstrip-fed monopole antenna,” IEEE Trans. Antennas Propag., vol. 65, no. 3, pp. 410–1415, Mar. 2017.
[16] R. Xu, J.-Y. Li, J.-J. Yang, K. Wei, and Y.-X. Qi, “A design of U-shaped slot antenna with broadband dual circularly polarized radiation,” IEEE Trans. Antennas Propag., vol. 65, no. 6, pp. 3217–3220, Jun. 2017.101
[17] C.P. Wen, “Coplanar waveguide: a surface strip transmission line suitable for nonreciprocal gyromagnetic device application,” IEEE Trans. Microw. Theory Tech., vol. MTT-17, no. 12, pp. 1087–1090, Dec. 1969.
[18] C. A. Balanis, Antenna Theory Analysis and Design, 3rd ed. New York: Wiley 2005.指導教授 凃文化 審核日期 2019-1-23 推文 plurk
funp
live
udn
HD
myshare
netvibes
friend
youpush
delicious
baidu
網路書籤 Google bookmarks
del.icio.us
hemidemi
myshare