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研究生:蘇顯陽
研究生(外文):Shean-young Su
論文名稱:雙頻帶單極微帶天線的設計與分析
論文名稱(外文):DESIGN AND ANALYSIS OF DUAL-BAND MONOPOLE MICROSTRIP ANTENNA
指導教授:張知難
指導教授(外文):The-Nan Chang
學位類別:碩士
校院名稱:大同大學
系所名稱:通訊工程研究所
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:2006
畢業學年度:94
語文別:英文
論文頁數:63
中文關鍵詞:單極天線輻射場型微帶天線反射損失
外文關鍵詞:MICROSTRIP ANTENNAMONOPOLE ANTENNARDDIATION PATTERNRETURN LOSS
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本論文提出一具有雙頻帶操作的微帶單極天線設計,其主體結構是由一直線段及對稱地摺疊曲線段的微帶線所組成。近幾年,個人通訊蓬勃發展,且訴求輕薄短小,所以在天線的體積設計上要小型化,本論文將對縮小化的天線作分析與模擬。
近幾年來由於微帶天線具有尺寸小、重量輕、成本低的特性,已廣泛應用於商業用途上,在無線通訊的應用上也扮演著重要的角色,相當適合在台灣發展。微帶天線係共振式的天線,通常限制了阻抗頻寬。所以擴大頻寬是微帶天線一大重點。本論文針對雙頻天線在有限尺寸的接地面上,對其阻抗頻寬和輻射場型等特性做研究與探討。並提出一簡單的天線設計概念,以矩形微帶天線為基礎,利用微帶線饋入之雙頻帶微帶單極天線(Dual-Band Microstrip Monopole Antenna)以提供藍芽(Bluetooth)(802.15)與無線區域網路(WLAN)(802.11b/g)以及(802.11a)的規格使用。由IE3D軟體模擬並與實驗結果比較得知,可以發現其響應非常吻合。
This thesis proposes a design of microstrip monopole antenna with dual-band operation. The proposed antenna is composed of a straight-line section and a balanced fold-line section. In recent years, the demand for portable radio communication has been increasing which required low profile, light weight and small size antennas. Therefore, the size of the antenna is required to be as small as possible.
Microstrip antennas have the advantage of light weight, small size and low cost and have been used in commercial products extensively. They have played the important role in wireless communicating applications recently.Microstrip antennas can radiate in broadside and act in resonant mode but restricted by its impedance bandwidth. Therefore, how to increase the bandwidth of microstrip antenna has been the major researching topic. In this thesis, we have investigated and analyzed the characteristics of the impedance bandwidth and radiation pattern of a compact size dual-band antenna with a small ground plane. All the properties of the dual-band antenna include the bandwidth, radiating pattern, and gain variation can satisfy the Bluetooth and IEEE 802.11a/b/g specifications for WLAN applications. Experimental results show good agreement to simulation predictions obtained from commercially available IE3D software.
ABSTRACT.....................................................i
摘要........................................................ii
誌謝.......................................................iii
TABLE OF CONTENTS...........................................iv
LIST OF FIGURES...........................................viii
LIST OF TABLE..............................................xii
CHAPTER1 INTRODUCTION........................................1
1.1Survey....................................................1
1.2Motivation and background.................................4
1.3Thesis organization.......................................5
CHAPTER2 ANTENNA OPERATION PRINCIPE AND DESIGNING............7
2.1The basic characteristics of antenna......................7
2.1.1Return loss.............................................8
2.1.2Radiation patterns......................................9
2.1.3Directivity and Gain...................................10
2.1.4Antenna radiation efficiency...........................11
2.2Principles explaining....................................12
2.2.1Basic concepts.........................................12
2.2.2Design analysis........................................13
2.2.2.1Marginal effects.....................................13
2.2.2.2Equivalent length and resonant frequency.............15
2.3Operation procedure......................................20
2.4The simulation and measurement equipments................21
2.4.1IE3D simulation software...............................21
2.4.2Network analyzer.......................................22
2.4.3The signal generator...................................22
2.4.4Arrangements for measuring pattern and gain............23
CHAPTER3 SIMULATIONS AND MEASUREMENTS.......................26
3.1Design and antenna structure.............................26
3.2Experimental results analysis and discussion.............30
3.2.1The current distribution...............................30
3.2.2Return loss............................................34
3.2.3Radiation pattern......................................40
3.2.4Antenna efficiency and gain............................47
3.3Discussion...............................................50
CHAPTER4 CONCLUSIONS........................................61
REFERENCES..................................................62
[1]. IEEE Standards Online,802.*http://standards.ieee.org/getieee802.
[2]. L.L. Rauth, J.S. McLean, K.R. Dorner, J.R. Casey, and G.E. Crook, “broadband low-profile antenna for portable data terminal” 1997 IEEE AP-S Int. Symp. Dig., pp. 438-441, Montreal, Canada, July 1997.
[3]. F. Yang and X.X. Zhang, “A broadband dual frequency microstrip antenna” 1999 IEEE AP-S Int. Symp. Dig., pp. 960-963, Montreal, Canada, July 1997.
[4]. R. Waterhouse, “Small microstrip patch antenna” Electron. Lett., vol. 31, pp. 604-605, April 13, 1995.
[5]. S. Dey and R. Mittra, “Compact microstrip patch antenna” Microwave Opt. Technol. Lett., vol. 13, pp. 12-14, Sept. 1996.
[6]. J.F. Zuercher and F.E. Gardiol, Broadband Patch Antenna Artech House, Norwood, MA, 1995.
[7].G. Kumar and K.C. Gupta, “Broad-band microstrip antennas using additional resonators gap-coupled to the radiating edges” IEEE Trans. Antennas Propagat., vol. 32, pp. 1375-1379, Dec. 1984
[8]. Ramesh Garg, Prakash Bhartia, Inder Bahl and Apisak Ittipiboon, Microstrip Antenna Design Handbook Artech House,Inc., 1982.
[9]. John D. Kraus and Ronald J. Marhefka, Antenna for All Application Peter Peregrinus LTD, 1981.
[10].Girish Kumar, K. P. Ray, Broadband Microstrip Antennas, Artech House, Boston, 2003.
[11].T Tsukiji, Y. Kumon, and M.Yamasaki, ”Double-Folded Monopole Antenna Using Parallel line or Coaxial Cable” IEE Proc-Microw, Antennas and Propagation, Vol. 149, pp. 17-18, Feb. 2002.
[12].H. Choo, R. Rogers, and H. Ling, “Design of Electrically Wire Antennas Using Genetic Algorithm Taking into Consideration of Bandwidth and Efficiency,” in IEEE AP-S Int. Symp., Vol. 01, pp. 330-333, Jun. 2002.
[13].K.P. Ray, P. V. Anob, KapurR, and G. Kumar, ”Broadband Planar Rectangular Monopole Antennas”, Microwave Optical Tech, Letters, Vol. 28, pp. 55-59, 2001.
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1. 黃文庸(1984)。淺談國小兒童發聲及指導合唱指揮前之準備工作。國教輔導,24(2),16-17。
2. 陳學謙(1997)。國民小學兒童合唱指揮研究。臺北師院學報,10,533-584。
3. 陳學謙(1993)。國民小學兒童發聲法之指導。臺北師院學報,6,625-664。
4. 陳學謙(1990)。兒童合唱團之組訓。國民教育,30(9),18-38。
5. 陳學謙(1989a)。兒童合唱曲之編選。國民教育,29(7),2-19。
6. 陳貞銣(1994)。台南市永福國小兒童合唱團之組訓。傳習,12,169-179。
7. 許允麗(1992)。國民小學兒童合唱的指揮法研究,傳習,10,265-284。
8. 莊道明(1998)。以資訊素養為基礎的圖書館利用教育課程-世新大學圖書館實施方式。書苑季刊,35,27-36。
9. 張瓊瑩(1996)。終身學習與現代教師--從教育專業談中小學教師生涯發展。研習資訊,13(6),46-55。
10. 林月和(1999)。兒童發聲法實務之研究。國教天地,134,16-21。
11. 吳博明(1982)。兒童合唱指導。國民教育,24(1),16-20。
12. 吳美美(1996)。資訊時代人人需要資訊素養。社教雙月刊,73,4-5。
13. 黃淑苓(2002)。「學生為中心」的學習評量。教育科學期刊,1(2),3-24。
14. 楊國賜(1992)。提昇教師的專業知能與地位。現代教育,7(2),15-21。
15. 廖玫茹(1993)。國小合唱指揮之理論與實務。嘉義師院學報,7,355-408。
 
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