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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 林怡成(Yi-Cheng Lin) | |
| dc.contributor.author | Chien-Hsun Chen | en |
| dc.contributor.author | 陳建勳 | zh_TW |
| dc.date.accessioned | 2021-06-13T08:18:05Z | - |
| dc.date.available | 2006-07-21 | |
| dc.date.copyright | 2005-07-21 | |
| dc.date.issued | 2005 | |
| dc.date.submitted | 2005-07-19 | |
| dc.identifier.citation | [1] K. Pahlavan, A. Zahedi, and P. Krishnamurthy, “Wideband local access: Wireless LAN and wireless ATM,”IEEE Commun. Mag., pp. 34-40, Nov. 1997.
[2] I-Jen Chen, Huei Wang, Powen Hsu, “A V-band quasi-optical GaAs HEMT monolithic integrated antenna and receiver front end,” IEEE Trans. Microwave Theory Tech., Vol. 51, pp. 2061-2068, Dec. 2003. [3] D. M. Pozar, “A microstrip antenna aperture coupled to a microstrip line,” Electron. Lett., Vol. 21, pp. 49-50, Jan. 1985. [4] D. M. Pozar, D. H. Schaubert, “Scan blindness in infinite phased arrays of printed dipoles,” IEEE Trans. Antennas Propagat., Vol. 32, pp. 602-610, June. 1984. [5] R. Q. Lee, R. N. Simons, “Measured mutual coupling between linearly tapered slot antennas,” IEEE Trans. Antennas Propagat., Vol. 45, pp. 1320-1322, Aug. 1997. [6] H. Yagi, “Beam transmission of the ultra short waves,” Proc. IRE, Vol. 16, pp. 715-741, June. 1928. [7] R. S. Elliott, Antenna Theory and Design, IEEE Press, Revised Edition, pp. 113-193. [8] S. Uda, “Wireless beam of short electric waves,” J. IEEE (Japan), pp. 273-282, 1926, pp. 1209-1219, 1927. [9] John D. Kraus, and Ronald J. Marhefka, Antennas for All Applications, McGraw Hill, New York, 2002, pp. 803-805. [10]R. Mongia, I. Bahl, and P. Bhartia, RF and Microwave Coupled-Line Circuits, Norwood, MA: Artech House, 1998, pp. 399-403. [11]W. K. Roberts, “A new wide-band balun,” Proc. IRE, Vol. 45, pp. 1628-1631, Dec. 1957. [12]Kian Sen Ang, Yoke Choy Leong, and Chee How Lee, “Multisection impedance-transforming Coupled-line Baluns,” IEEE Trans. Microwave Theory Tech., Vol. 51, No. 2, pp. 536-541, Feb. 2003. [13]Nihad I. Dib, Rainee N. Simons, Linda P. B. Katehi, “New uniplanar transitions for circuit and antenna applications,” IEEE. Trans. Microwave Theory Tech., Vol. 43, No. 12, pp. 2868-2873, Dec. 1995. [14]J. Huang and A. C. Densmore, “Microstrip Yagi array antenna for mobile satellite vehicle application,” IEEE Trans. Antenna Propagat., Vol. 39, pp. 1024-1030, July 1991. [15]K. Uehara, K. Miyashita, K. I. Matsume, K. H. Hatakeyama, and K. Mizuno, “Lens-coupled imaging arrays for the millimeter and sub millimeter-wave regions,” IEEE Trans. Microwave Theory Tech., Vol.40, pp. 806-811, May 1992. [16]Noriaki Kaneda, W. R. Deal, Yongxi Qian, R. Waterhouse, and Tatsuo Itoh, “A broadband planar quasi-Yagi antenna,” IEEE Trans. Antenna Propagat., Vol. 50, pp. 1158-1160. Aug. 2002. [17]T. Itoh and A. S. Hebert, “A generalized spectral domain analysis for coupled suspended microstriplines with tuning septums,” IEEE Trans. Microwave Theory Tech., Vol. MTT-26, pp. 820-826, Oct. 1978. [18]R. Bawer and J. J. Wolfe, “A printed circuit balun for use of spiral antennas,” IRE Trans. Microwave Theory Tech., Vol. 8, pp. 319-325, May. 1960. [19]J. W. McLaughlin, D. A. Dunn, and R. W. Grow, “A wide-band balun,” IRE. Trans. Microwave Theory Tech. Vol. 6, pp. 314-316, July 1958. [20]F. Tefiku, C. A. Grimes, “Design of broad-band and dual-band antennas comprised of series-fed printed-strip dipole pairs,” IEEE Trans. Antenna Propagat. Vol. 48, pp. 895-900, June 2000. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/36829 | - |
| dc.description.abstract | 在本論文中，我們設計了操作在ISM頻段(5GHz)無線區域網路的quasi-Yagi天線，並且使用各種不同的平衡不平衡器。為了達到較寬的頻寬，我們應用了series-fed天線結構。我們同時呈現了等效電路模型，並且推導設計公式，已得到更高的增益值。我們利用較容易取得的介質板材FR4，以實驗結果來驗證寬頻及增益的效果。 | zh_TW |
| dc.description.abstract | In this thesis, planar quasi-Yagi antennas fed by different kinds of baluns are designed for 5GHz WLAN systems including Marchand balun, via-hole fed balun, half-wavelength balun, and multisection coupled-line balun. To obtain wider bandwidth, series-fed antenna is investigated. We also present equivalent circuit model and derive design formula to obtain higher gain. They are implemented and measured at 5GHz with FR4 PCB and results show good enhancements in both bandwidth and gain. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T08:18:05Z (GMT). No. of bitstreams: 1 ntu-94-R92942014-1.pdf: 17113289 bytes, checksum: b5f5750123909f3f9418dc301471095f (MD5) Previous issue date: 2005 | en |
| dc.description.tableofcontents | Chapter 1 Introduction…………………………………………………1
1.1 Motivation………………………………………………1 1.2 Literature Survey ……………………………………2 1.3 Chapter Outlines………………………………………5 Chapter 2 Theoretical Analysis…………………………6 2.1 Concepts of Yagi-Uda Antenna………………………6 2.1 Introduction to Baluns………………………………9 2.2 Via-Hole Baluns………………………………………12 2.3 Marchand Baluns………………………………………14 2.4 Half-wavelength Difference Baluns………………16 2.5 Multisection Coupled-Line Baluns ………………17 Chapter 3 Design of Different Kinds of Baluns Fed Planar Quasi-Yagi Antennas………………………………………23 3.1 Planar Quasi-Yagi Antenna…………………………23 3.2 Quasi-Yagi Antenna with Via-Hole Balun ………26 3.3 Quasi-Yagi Antenna with Marchand Balun ………30 3.4 Quasi-Yagi Antenna with Half-Wavelength Difference Balun…………………………………………………………35 3.5 Quasi-Yagi Antenna with Multisection Coupled-Line Balun…………………………………………………………43 Chapter 4 Enhancements Bandwidth and Gain Using Series-fed Antenna………………………………………………………58 4.1 Series-fed Antenna Concepts………………………58 4.2 Series-fed Antenna with Multisection Coupled-Line Balun…………………………………………………………60 Chapter 5 Conclusion ……………………………………66 Appendix A …………………………………………………67 Appendix B …………………………………………………71 Appendix C …………………………………………………72 References …………………………………………………78 | |
| dc.language.iso | en | |
| dc.title | 寬頻平衡式天線之設計 | zh_TW |
| dc.title | Design of Wideband Balanced Antennas | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 93-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 許博文(Powen Hsu),吳瑞北(Ruey-Beei Wu),江簡富(Jean-Fu Kiang) | |
| dc.subject.keyword | 寬頻,平衡式,天線, | zh_TW |
| dc.subject.keyword | wideband,balanced,antenna, | en |
| dc.relation.page | 80 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2005-07-19 | |
| 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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