(3.227.249.155) 您好!臺灣時間:2021/05/07 06:25
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果

詳目顯示:::

我願授權國圖
: 
twitterline
研究生:張銘峰
研究生(外文):Ming-Feng Chang
論文名稱:同軸饋入之矩形環狀開槽天線研究
論文名稱(外文):A Study on the Coaxial-fed Rectangular-Ring Slot Antenna
指導教授:柏小松
指導教授(外文):Sheau-Shong Bor
學位類別:碩士
校院名稱:逢甲大學
系所名稱:電機工程所
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:2009
畢業學年度:97
語文別:中文
論文頁數:79
中文關鍵詞:無線區域網路全球定位系統功率分波器開槽天線軸比圓極化阻抗頻寬
外文關鍵詞:mpedance bandwidthcircular polarizationaxial ratiopower dividerslot antennawireless local area networkglobal position system
相關次數:
  • 被引用被引用:4
  • 點閱點閱:189
  • 評分評分:系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
本文提出不等寬的矩形環狀開槽天線,結果獲得更寬的阻抗頻寬和軸比頻寬。此外,其設計過程簡單並且容易達到所需頻帶。由中心操作頻率( f0 )決定矩形開槽天線整體的尺寸大小,其次為了達到圓極化的效果,故增加開槽上方的寬度,使其結構不對稱以產生相互垂直的場型,並將此天線結構視為本研究的主軸,並利用此結構分別設計一系列的運用。
首先,提出運用在無線區域網路(WLAN,f0=2.45GHz)的天線,其模擬和量測結果相當吻合。天線為同軸饋入式之矩形環狀開槽天線,藉由控制同軸饋入點位置和開槽的寬度,獲得寬頻的3 dB軸比頻寬特性;其返回損失頻率響應的中心頻率為2.5GHz,且阻抗頻寬為1.26GHz (50.4%),軸比頻率響應的中心頻率為2.45 GHz,軸比頻寬為420 MHz (17.1%)。
其次,提出雙頻操作的圓極化天線,分別應用在全球定位系統(GPS,f0=1575 MHz)和無線區域網路(WLAN)的頻段,低頻段的部份,主要是藉由開槽的設計方式,達到激發共振;並簡單地利用開槽的調整,達到頻率偏移的控制。
最後提出寬頻圓極化天線(f0=2.85GHz),利用分波器產生90度相位差的訊號源,且達到完善地阻抗匹配設計,並獲得阻抗頻寬1.7GHz(59.6%),以及軸比頻寬970 MHz(32.4%)。
A non-uniform rectangular-ring slot antenna is presented to own wider impedance and axial ratio (AR) bandwidths. Additionally, the design process is so simple and easy to obtain the required performances. In the beginning, a square-ring slot is given with the frequency response in the required center operating frequency. Secondly, increase the width of slot on the upper side for the sake of AR. In this study, the structure of antenna is regarded as the main shaft. Some applications are obtained by this structure.
First, a application with wireless local area network (WLAN) is presented. The simulated and measured data match very well. Wide 3dB AR bandwidth is obtained by controlling the fed point and the width of slot. The impedance and AR bandwidths are 1.26 GHz (50.4%) and 420 MHz (17.1%), respectively.
Then, a dual-band circular polarization (CP) antenna with global position system (GPS) and WLAN is presented. By adjusting slot, low band is excited and frequency shift can be calculated accurately. Finally, a wide band CP antenna with power divider is presented. By impedance matching, the bandwidth of impedance and AR are 1.7 GHz (59.6%) and 970MHz (32.4%), respectively.
摘要 ii
Abstract iv
致謝 v
目錄 vi
圖目錄 ix
表目錄 xiii
中英文對照表 xiv
第一章 序論 1
1.1前言 1
1.2研究動機及目標 2
1.3論文概述 3
第二章 圓極化 4
2.1 迴路天線 4
2.2 開槽天線 6
2.3 單饋入式和雙饋入式的天線 7
第三章 單頻圓極化天線 10
3.1 概述 10
3.2 天線設計 11
3.2.1 天線結構 11
3.2.2 參數探討 12
3.2.3 圓極化分析 26
3.3 無線區域網路頻段的應用 28
3.4 天線阻抗匹配的設計 32
第四章 雙頻圓極化天線 38
4.1 概述 38
4.2 天線設計 39
4.2.1 天線結構 39
4.2.2 參數探討 41
4.2.3 圓極化分析 49
4.3 模擬與量測結果 53
4.3.1 模擬結果 53
4.3.2 量測結果 55
第五章 寬頻圓極化天線 61
5.1 概述 61
5.2 天線設計 62
5.2.1 天線結構 62
5.2.2 不共平面的設置與分析 64
5.2.3 分波器的設計與分析 66
5.3 模擬與量測結果 68
第六章 結論 73
參考文獻 75
作者簡介 79
[1]R. F. Harrington, Time-Harmonic Electromagnetic Fields , Wiley-Interescience, 2001.
[2]J. D. Kraus and R. J. Marhefka, Antennas for all Applications, 3nd ed., McGraw-Hill, 2003.
[3]C. A. Balanis, Antenna Theory Analysis and Design, 3nd ed., John Wiley, 2005.
[4] X. L. Boa and M. J. Ammann, “Compact annular-ring embedded circular patch antenna with cross-slot ground plane for circular polarization,”Electronics Letter, Vol. 42, No. 4, 16th February 2006.
[5]X. L. Boa and M. J. Ammann, “Dual-Frequency Circularly- Polarized Patch Antenna with Compact Size and Small Frequency Ratio,” IEEE Transactions on Antenna and Propagation, Vol. 55, No. 7, July 2007.
[6]X. L. Boa and M. J. Ammann, “Dual-Frequency Dual-Sense Circularly-Polarized Slot Antenna Fed by Microstrip Line,” IEEE Transactions on Antenna and Propagation, Vol. 56, No. 3, March 2008.
[7]F. S. Chang, K. L. Wong and T. W. Chiou, “Low-Cost Broadband Circularly Polarized Patch Antenna,” IEEE Transactions on Antenna and Propagation, Vol. 51, No. 10, October 2003.
[8]Y. B. Chen, X. F. Liu, Y. C. Jiao and F. S. Zhang, “CPW-fed broadband circularly polarized square slot antenna,” Electronics Letter, Vol. 42, No. 19, 14th September 2006.
[9]J. Y. Sze, K. L. Wong, and C. C. Huang, “Coplanar Waveguide-Fed Square Slot Antenna for Broadband Circularly Polarized Radiation,” IEEE Transactions on Antenna and Propagation, Vol. 51, No 8, August 2003.
[10]S. D. Targonski and D. M. Pozar, “Design of Wideband Circularly Polarized Aperture-Coupled Microstrip Antennas,” IEEE Transactions on Antenna and Propagation, Vol. 41, No. 2, February 1993.
[11]D. M. Pozar and S. M. Duffy, “A Dual-Band Circularly Polarized Aperture-Coupled Stacked Microstrip Antenna for Global Positioning Satellite,” IEEE Transactions on Antenna and Propagation, Vol. 45, No. 11, November 1997.
[12]K. L. Wong and T. W. Chiou, “Single-Patch Broadband Circularly Polarized Microstrip Antennas,” IEEE Antennas Propagat. Soc. Int. Symp. Dig., Vol. 2, pp. 984-987, Jul. 2000.
[13]K. L. Lau and K. M. Luk, “A Novel Wide-Band Circularly Polarized Patch Antenna Based on L-Probe and Aperture-Coupling Techniques,” IEEE Transactions on Antenna and Propagation, Vol. 53, No. 1, January 2005.
[14]L. Bian, Y. X. Guo, L. C. Ong and X. Q. Shi, “Wideband Circularly-Polarized Patch Antenna,” IEEE Transactions on Antenna and Propagation, Vol. 54, No. 9, September 2006.
[15]H. D. Chen, “ Broadband CPW-Fed Square Slot Antennas with a widened Tuning Stub,” IEEE Transactions on Antenna and Propagation, Vol.51, No.8, August 2003.
[16]J. S. Row, ”The Design of A Square-Ring Slot Antenna for Circular polarization,” IEEE Transations on Antenna and Propagation, Vol.53, No.6, June 2005.
[17]S. Sadat, M. Fardis, F. Geran, and Dadashzadeh, “A Compact Microstrip Square-Ring Slot Antenna for UWB Application, ” Progress In Electromagnetics Research, PIER 67, p173-179, 2007.
[18]A. U. Bhobe, C. L. Holloway, P. M. Melinda, “CPW fed Wide-Band Hybrid Slot Antenna,” IEEE Antennas and Propagation Society International Symposium, Vol. 2, 16-21, July 2000.
[19]P. L. Chin, A. Z. Elsherbeni, and C. E. Smith, “Characteritics of Coplanar Bow-Tie Patch Antennas,” IEEE Antennas and Propagation Society International Symposium, Vol. 1, p398-401, August 2002.
[20]S. Chaimool, S. Kerdsumang, P. Akkraeakthalin and V. Vivek, “ A Broadband CPW-fed Square Slot Antenna Using Loading Metallic Strips and A Widened Tuning Stub,” IEEE Antennas and Propagation Society International Symposium, Vol. 3, p539-542, Nov. 2004.
[21]J. Y. Sze, C. C. Chang, “ Circularly Polarized Square Slot Antenna with A pair of Inverted-L Grounded Strips,” IEEE Transactions on Antenna and Propagation, Vol. 7, 2008.
[22]J. Y. Chiou, J. Y. Sze, and K. L. Wong, “A Broad-Band CPW-Fed Strip-Loaded Square Slot Antenna,” IEEE Transactions on Antenna and Propagation, Vol. 51, No. 4, April 2003.
[23]G. Beddeleem, J. M. Ribero, G. Kossiavas, R. Staraj, and E. Fond,“ Dual-Frequency Circularly Polarized Antenna,” Microwave and Optical Technology Letter, Vol.50, No. 1, January 2008.
[24]G. B. Hsieh and K. L. Wong, “ Inset-microstrip-line-fed dual-frequency circular microstrip antenna and its application to a two-element dual-freqnency microstrip array,” IEEE Transactions on Antenna and Propagation, Vol. 146, No. 5, October 1999.
[25]S. L. Yang and K. M. Luk, “A Wideband L-Probes Fed Circularly-Polarized Reconfigurable Microstrip Patch Antenna,” IEEE Transactions on Antenna and Propagation, Vol. 56, No. 2, February 2008.
[26]D. M. Pozar, Microwave Engineering, 2nd ed., John Wiley, 2005.
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
無相關期刊
 
系統版面圖檔 系統版面圖檔