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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/36920完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 許博文 | |
| dc.contributor.author | Tzung-Ming Lai | en |
| dc.contributor.author | 賴宗民 | zh_TW |
| dc.date.accessioned | 2021-06-13T08:22:47Z | - |
| dc.date.available | 2005-07-26 | |
| dc.date.copyright | 2005-07-26 | |
| dc.date.issued | 2005 | |
| dc.date.submitted | 2005-07-18 | |
| dc.identifier.citation | References
[1] S.Yano and A. Ishimaru,“A theoretical study of the input impedance of a circular microstrip disk antenna,” IEEE Trans. Antennas Propogat., vol. 29, no. 1, pp. 77-83, Jan. 1981. [2] C. Baumer, “Analysis of slot coupled circular microstrip patch antenna,” Electron. Lett., vol. 28, no. 15, pp. 1454-1455, July. 1992. [3] I-Jen Chen, Chung-Shao Huang and Powen Hsu,“Circular Polarized patch antenna array fed by coplanar waveguide,” accepted by IEEE Trans. Antennas and Propagation. [4] T. Teshirogi, M. Tanaka, and W. Chujo, “Wideband circularly polarized array antenna with sequential rotations and phase shifts of element,” in Proc.Int. Symp. Antennas and Propagat., pp. 117-120, Japan, Tokyo, 1985. [5] P. S. Hall, J. S. Dahele, and J. R. James, “Design principles of sequentially fed, wide bandwidth, circularly polarised microstrip antennas,” IEE Proc.-Microw. Antenna Propag., vol. 136, pp. 381-389, Aug. 1989. [6] P. S. Hall, “Application of sequential feeding to wide bandwidth, circularly polarised microstrip patch arrays,” IEE Proc.-Microw. Antenna Propag., vol. 136, pp. 390-398, Aug. 1989. [7] I. Morrow and J. R. James, “Sequentially rotated large bandwidth circularly polarised printed antenna,” Electron. Lett., vol. 31, pp. 2062-2064, 1995. [8] W. K. Lo, C. H. Chan, and K. M. Luk, “Circularly polarised microstrip antenna array using proximity coupled feed,” Electron. Lett., vol. 34, pp. 2190-2191, 1998. [9] L. Dussopt, Y. Toutain, J.-P. Coupez, and J.-M. Laheurte, “Circularly polarised microstrip arrays built on polymethacrylate imide foam,” Electron. Lett., vol. 36, pp. 1758-1759, 2000. [10] C. A. Balanis, Antenna theory: analysis and design 2nd, John Wiley & Sons, New York, 1997. [11] J. R. James, P. S. Hall, and C. Wood, Microstrip Antenna – Theory and Design. New York: Peter Peregrinus, 1981, Chap. 7. [12] C. C. Hsu, “Analysis of CPW-fed circular patch antennas,” Master Thesis, National Taiwan University, 2001. [13] K. Araki, and T. Itoh,“Hankel Transform domain analysis of open circular microstrip radiating structure,” IEEE Trans. Antennas Propogat., vol. AP-29, NO. 1, pp. 84-89, Jan. 1981. [14] A. G. Derneryd,“Analysis of the microstrip disk antenna element,” IEEE Trans. Antennas Propogat., vol. AP-27, NO. 5, pp. 660-664, Sept. 1979. [15] S. B. De Assis Fonseca and A. J. Giarola,“Microstrip disk antennas, Part I: Efficiency of space wave launching, ” IEEE Trans. Antennas Propogat., vol. AP-32, No.6,pp.561-567, June. 1984. [16] S. B. De Assis Fonseca and A. J. Giarola,“Microstrip disk antennas, Part II: The problem of surface wave radiation by dielectric truncation,” IEEE Trans. Antennas Propogat., vol. AP-32, No.6,pp.568-573, June. 1984. [17] L. C. Shen, S. A. Long, M. R. Allerding, and M. D. Walton, “Resonant frequency of a circular disk, printed-circuit antenna, ” IEEE Trans. Antennas Propogat., vol. AP-29, No.1,pp.84-89, Jan. 1981. [18] M. Haneishi, T. Nambara, and S. Yoshida, “Study on ellipticity properties of single-feed type circularly polarized microstrip antenna,” Electronic Letters, vol. 18, No.5,pp191-193, Mar. 1982. [19] E. T. Rahardjo, S. Kitao, and M. Haneishi, “Circularly polarized planar antenna excited by cross-slot coupled coplanar waveguide feeding,” IEEE AP-S.Digest, vol.3, pp.2220-2224, 1994. [20] H. Iwasaki, and N.Chiba, “Circularly polarised back-to-back microstrip antenna with an omnidirectional pattern,” IEE Proc-Microw. Antenna Propag.,vol.146, No.4,pp.277-281, August 1999. [21] Y. Turki, C. Migliaccio, and J. M. Laheurte,“Circularly polarised square patch antenna fed coplanar waveguide,” Electronic Letters,,vol.33,No.15,pp.1321-1323, July 1997. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/36920 | - |
| dc.description.abstract | 本論文中，我們主要是提出一種用微帶線饋入的圓極化微帶天線，經由模態分析法加以分析。首先將針對各式圓極化微帶天線進行介紹。
理論分析以共振腔模型為基礎，求解圓形微帶天線在共振腔中的模態。由模態分析的結果，可推導出在共振腔金屬面上的電流分布情形。而在本論文中是採直接饋入圓形微帶天線，但爲了增加頻寬和極化程度，經由結合循序旋轉的設計技巧，在此設計了微帶線饋入之圓形極化微帶線天線陣列。從模擬與量測結果當中，我們可以明顯的發現使用循序旋轉的技巧的 1x2 陣列天線，在頻寬上有明顯的提升。 由於本論文中所提出的天線是由微帶線所饋入，因此本身具有結構簡單，輕薄短小， 低姿態，易於與電路結合且製造的好處，故這些天線適合應用於高頻(毫米波)頻段。 | zh_TW |
| dc.description.abstract | In this thesis, a circularly polarized patch antenna fed by a microstrip-line is designed for the 60GHz (V-Band) communication system. In order to increase the bandwidth and polarization purity, a wide bandwidth microstrip-line fed circularly polarized patch array is proposed by combining the principle of sequential rotation technique and the 90° phase delay line for spatial rotation.
Based on the cavity model, the Helmholtz’s equation is solved to obtain the modes exist in the circular cavity resonator. From the mode analysis results, the electric current distribution patterns on the patch and the ground plane are computed. Because we need increase the bandwidth and the polarization purity, a microstrip-line fed circularly polarized patch array is proposed by employing the principle of sequential rotation technique. The simulated and measured return losses are presented for an 1x2 array with and without sequential rotation technique. Significant increase in the return loss bandwidth is found in the array with sequential rotation. Because the proposed antenna is fed by the microstrip-line, in addition to the advantages of simple structure, lightweight, low profile, easy to combine with the circuit, and fabricate, this antenna is especially suitable for millimeter-wave application. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T08:22:47Z (GMT). No. of bitstreams: 1 ntu-94-R92942013-1.pdf: 870987 bytes, checksum: 3aad1d70424d8be1951e4b13a2abeccb (MD5) Previous issue date: 2005 | en |
| dc.description.tableofcontents | Chapter 1 Introduction…………………………………….. 1
1.1 Motivation and Literature Survey…………………1 1.2 Chapter Outlines…………………………………..4 Chapter 2 Analysis of Circularly Polarized Microstrip Antenna………………………………..…………9 2.1 Various Types of Circularly Polarized Microstrip Antenna………………………………………….. 9 2.1.1 Resonator Antenna………………………. 9 2.1.2 Traveling Wave Antenna……………….. 10 2.2 Theoretical Analysis Base On Cavity Model……. 11 2.2.1 Cavity Model…………………………….11 2.2.2 Electric and Magnetic Fields — TMz…. 12 2.2.3 Equivalent Current Densities and Field Radiated………………………………… 14 2.3 Necessary Conditions for Circularly Polarized Radiation……………………………………...… 15 III Chapter 3 Design of CP Patch Antenna Fed by Microstrip Line……….…………………………………… 29 3.1 Concept of Generating Circular Polarization……. 29 3.2 Mode Limiting Effect Relating to Current Pattern on The Ground Plane…………………………31 3.3 Design of Circularly Polarized Patch Antenna Fed by Microstrip Line…………………………. 34 3.3.1 Sequentially Rotated Feeding Technique… 35 3.3.2 Design CP Patch 1D Array Fed by Microstrip Line at 5GHz……………………….…….. 36 3.3.3 Design Single Element CP Patch Antenna Fed by Microstrip Antenna at 60GHz….... 37 3.3.4 Design CP Patch 1D Array Fed by Microstrip Line at 60GHz…………………………… 38 Chapter 4 Conclusions…………..………………..…….… 62 Appendix A Simple Formula for Axial Ratio Calculations………………………………….. 63 IV Appendix B Derivation of the Equivalent Circuit for CP Microstrip Antenna……………………... 71 References…………………………………………...………..76 V List of Figures Chapter 1 Fig. 1.1 Typical feeding approaches of patch antennas. (a) Coaxial feed, (b) Aperture-coupled feed, (c) Microstrip line feed, and (d) CPW feed ………………………………………………………….…8 Chapter 2 Fig. 2.1 Various types of circularly polarized antenna………………….19 Fig. 2.2 Two kinds of feeding network for dual-fed patch antenna……..20 Fig. 2.3 Geometry of circular microstrip patch antenna………………...21 Fig. 2.4 Cavity model and equivalent magnetic current density for circular microstrip patch antenna…………………………...…22 Fig. 2.5 Typical polarization circle……………………………………...23 Fig. 2.6 Far field radiation approximation of arbitrary current sources...24 Fig. 2.7 Magnetic current distribution of circular patch antenna TM11…25 Fig. 2.8. Instantaneous magnetic current distribution plot of circular patch antenna versus variable ………………...…26 VI Chapter 3 Fig. 3.1(a) Equivalent circuit of linearly polarized circular microstrip antenna………………………………………………………39 Fig. 3.1(b) Equivalent circuit of linearly polarized mode split into two orthogonal modes………………………………………40 Fig. 3.2 Fundamental configuration of two singly-fed type CP circular patch antenna……………………………………….41 Fig. 3.3 Surface current patterns on the ground plane of circular cavity, TM11 mode and TM21 mode…………………………………42 Fig. 3.4 Surface current patterns on the ground plane of circular cavity, TM31 mode and TM41 mode…………………………………43 Fig. 3.5 Surface current patterns on the ground plane of circular cavity, TM02 mode and TM12 mode…………………………………44 Fig. 3.6 Sequentially rotated array feeding…………………………..45 Fig. 3.7 Configuration of the microstrip line fed 1×2 circularly polarized circular patch array with sequentialy rotation……46 Fig. 3.8 Simulated and measured return losses and axial ratio of the microstrip line fed 1×2 circularly polarized circular patch array with sequential rotation against frequency…………..47 VII Fig. 3.9 Simulated and measured radiation pattern of the microstrip line fed 1×2 circularly polarized circular patch array without sequential rotation patch antenna at 5.15GHz and 5.25GHz.... 48 Fig. 3.10 Simulated and measured radiation pattern of the microstrip line fed 1×2 circularly polarized circular patch array without sequential rotation patch antenna at 5.35GHz and 5.4GHz….. 49 Fig. 3.11 The measured gain comparisons of RHCP and LHCP variations versus frequency………………………………….. 50 Fig. 3.12 Configuration of the microstrip line fed circular patch antenna……………………………………………………….. 51 Fig. 3.13 Simulated return losses and axial ratio of the microstrip line fed patch antenna against frequency……………………………... 52 Fig. 3.14 Simulated radiation pattern to of the patch antenna fed by Microstrip line……………………………………………..…. 53 Fig. 3.15 Configuration of the microstrip line fed 1×2 circularly polarized circular patch array………………………………... 54 Fig. 3.16 Simulated return losses and axial ratio of the microstrip line fed 1×2 circularly polarized circular patch array without sequential rotation against frequency……………………………………55 Fig. 3.17 Simulated radiation pattern of the microstrip line fed 1×2 circularly polarized circular patch array without using sequential rotation patch antenna at 60.5GHz……………….56 VIII Fig. 3.18 Simulated and measured return losses of the microstrip line fed 1×2circularly polarized circular patch array with sequential rotation against frequency……………………………………57 Fig. 3.19 Simulated axial ratio of the microstrip line fed 1×2 circularly polarized circular patch array with sequential rotation against frequency……………………………………………………..58 Fig. 3.20 Simulated radiation pattern of the microstrip line fed 1×2 circularly polarized circular patch array with using sequential rotation patch antenna……………………………………….59 Fig. 3.21 Simulated radiation pattern of the microstrip line fed 1×2 circularly polarized circular patch array with using sequential rotation patch antenna………………………………………60 Fig. 3.22 The measured gain comparisons of RHCP and LHCP variations versus frequency arrays………………………….61 Fig. A.1 Combination of two quasi-linearly polarized signals……….67 Fig. B.1 Fundamental configuration of singly-fed rectangular patch..74 Fig. B.2 Equivalent circuit for rectangular circularly polarized antenna………………………………………………………75 IX List of Tables Chapter 1 Table 2-1 The zeros of the derivative of the Bessel function …………………………………………………27 Table 2-2 The zeros, , of the first ten modes in ascending order, mode indices and numbers of maximum field…………..28 Table 4-1 The comparison between arrays with and without sequential rotation………………………………………………….62 Table A-1 Comparison between approximate and exact AR of CP wave with perfectly polarized radiating elements………68 Table A-2 Comparison between approximate and exact AR of CP wave with same-sense quasi-linearly polarized radiating elements…………………………………………………70 | |
| dc.language.iso | en | |
| dc.subject | 微帶天線 | zh_TW |
| dc.subject | 圓極化 | zh_TW |
| dc.subject | Patch Antenna | en |
| dc.subject | Circularly Polarized | en |
| dc.title | 60GHz微帶線饋入圓極化微帶天線 | zh_TW |
| dc.title | 60GHz Circularly Polarized Patch Antenna Fed By Microstrip-Line | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 93-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 江簡富,張知難,張道治,林怡成 | |
| dc.subject.keyword | 圓極化,微帶天線, | zh_TW |
| dc.subject.keyword | Circularly Polarized,Patch Antenna, | en |
| dc.relation.page | 78 | |
| 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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