臺灣博碩士論文加值系統

本論文提出具高次諧波抑制能力之近場耦合扇形微帶發射-接收天線作為無線傳能 (Wireless Power Transmission, WPT)天線架構設計，經設計分別可應用在近場傳能與遠場傳能兩種情境之上。於近場無線傳能，主要透過分析發射-接收天線對在近場耦合區域時的電磁場分布情形進行架構改變達到高傳輸效率，同時利用扇形的模態隨Bessel Function改變之特性獲得諧波抑制效果。而在遠場傳能，接收天線可單獨被視為整流天線使用，負責接收空間中2.4 GHz電磁波能量進行能源回收利用。
以整流天線概念提出具諧波抑制能力之扇形接收天線，再設計發射和接收天線結合時(落入彼此的近場區域)能夠有完善的電磁場傳輸作用之發射天線，兩天線的設計必須同時做考量，透過電磁場耦合現象的觀察達到最好的傳輸係數，使天線對在2.45 GHz時有高達92.3%的傳輸效率。最後，後端整流電路經整流二極體分析設計及匹配能得到87.1%之轉換效率，可將天線接收進來的射頻能量轉換成直流輸出對待充電裝置進行供電。天線架構與整流電路結合經過實際量測整體系統架構在發射功率為19 dBm時，可達到80%以上的整體效率，符合本論文期望具諧波抑制能力之高效率無線傳能的目標。

In this dissertation, a design of transmitting-receiving antenna pair in the near-field coupled for Wireless Power Transmission (WPT) is proposed. It can be applied in two different situations is near-field transmission and far-field transmission, respectively. In the near-field, by analyzing the field distribution and the reflector of the transmit-receive antenna pair within the reactive near-field region, the transmission coefficient of the proposed antenna pair can be optimized. On the other hand, the receiving antenna combined with the rectifier circuit can be seen as a rectenna at 2.4GHz when receiving antenna standalone.
The proposed antenna pair utilized two different structure of circular sector microstrip Antenna. Through the relevance between the angle of circular sector and Bessel Function can achieve harmonic suppression effect. In order to improve the transmission efficiency, use the observation surface to observe the electromagnetic field distribution, and adjust the antenna structure parameters. Finally, the transmission efficiency of the antenna pair up to 92.3% at 2.45GHz. The proposed structure combine antenna with rectifier circuit, the receiving RF energy which in front of the antenna, through the rectifier circuit can convert to DC output. The maximum overall efficiency of the proposed antenna pair is more than 80% where the transmitted power reached 19 dBm. This architecture is ideal for wireless power transmission.

中文摘要 i
英文摘要 iii
誌 謝 v
目 錄 vi
圖目錄 viii
表目錄 xi
第一章 緒論 1
1.1 研究背景與動機 1
1.2 文獻探討 4
1.3 論文架構 5
第二章 天線理論 7
2.1 概述 7
2.2 偶極和單極天線分析 7
2.3 微帶天線 14
第三章 近場耦合發射-接收天線對設計 22
3.1 概述 22
3.2 發射-接收天線對架構 23
3.2.1 天線對結構設計 23
3.3 天線對設計方法和參數分析 29
3.3.1 扇形微帶天線對架構設計 29
3.3.2 近場耦合天線對電磁場耦合機制 36
3.4 接收天線輻射特性 40
第四章 整流電路設計 42
4.1 概述 42
4.2 基本理論 43
4.2.1 蕭特基二極體原理與特性 43
4.2.2 半波倍壓整流電路基本理論 49
4.3 設計2.45 GHz整流電路 53
4.3.1 二極體效率分析和模擬 53
4.3.2 整流電路模擬和量測結果 54
第五章 近場無線傳能系統之量測 60
5.1 概述 60
5.2 整體效率量測 60
第六章 結論與未來展望 63
參考文獻 64

[1]Y. Zou, X. Huang, L. L. Tan, Y. Bai, and J. Zhang, “Current Research Situation and Developing Tendency about Wireless Power Transmission,”in Proc IEEE Int. Conf. Electronics and Control Engineering (ICECW2010), Wuhan, June 2010, pp.3507-3511.
[2]Takashi Komaru, and Hidenori Akita, “Positional Characteristics of Capacitive Power Transfer as a Resonance Coupling System,” in Proc. IEEE Wireless Power Transfer Conf. (WPT), Perugia,May 2013, pp. 218-221.
[3]尤宗旗，應用具諧波抑制與圓極化平面整流天線之無線傳能充電系統設計，博士論文，國立成功大學電機工程學系，台南，2008。
[4]N. Tesla, “The Transmission of Electric Energy Without Wires,” The Thirteenth Anniversary Number of the Electrical World and Engineer, Mar. 1904.
[5]A. S. Marincic, “Nikola Tesla and the wireless transmission of energy,” IEEE Trans. Power Apparatus and Systems, vol. PAS-101, no. 10, pp.4064-4068
[6]W. C. Brown, “The history of power transmission by radio waves,” IEEE Trans. Microwave Theory Tech., vol. 32, no. 9, pp. 1230-1242, Sept. 1984.
[7]P. E. Glaser, “An overview of the solar power satellite option,” IEEE Trans. Microwave Theory Tech., vol. 40, no. 6, pp. 1230-1238, Jun. 1992.
[8]J. O. McSpadden and J. C. Mankins, “Space solar power programs and microwave wireless power transmission technology,” IEEE Microw. Magaz., vol. 3, no. 4, pp. 46-57, Dec. 2002.
[9]T.W. Yoo and K. Chang, “Theoretical and experimental development of 10 and 35 GHz rectennas,” IEEE Trans. Microwave Theory Tech., vol. 40, no. 6, pp. 1259-1266, Jun. 1992.
[10]J.O. McSpadden, L. Fan, and K. Chang, “Design and experiments of a high-conversion-efficiency 5.8-GHz rectenna,” IEEE Trans. Microwave Theory Tech., vol. 46, no. 12, pp. 2053-2059, Dec. 1998.
[11]W.S. Yeoh, W.S.T. Rowe, and K.L. Wong, “Decoupled dual-dipole rectennas on a conducting surface at 2.4GHz for wireless battery charging,” IET Microwave Antennas Propag., vol. 6, Iss. 2, pp. 238-244, Feb. 2012.
[12]F. J. Huang, T. C. Yo C. M. Lee, and C. H. Luo, “Design of Circular Polarization Antenna With Harmonic Suppression for Rectenna Application,” IEEE antenna and wireless propag. Lett., vol. 11, 2012.
[13]J. H. Chou, D. B. Lin, K. L. Weng, and H. J. Li, “All polarization receiving rectenna with harmonic rejection property for wireless power transmission,” IEEE Trans. on Antenna and Propag., vol. 62, no. 10, Oct. 2014.
[14]Qiang Chen, Kazuhiro Ozawa, Qiaowei Yuan, and Kunio Sawaya, “Antenna Characterization for Wireless Power Transmission System Using Near-Field Coupling,” IEEE Antennas and Propag. Magazine, vol. 54, no. 4, Aug. 2012.
[15]J. Guo, H. Zhang, and X. Zhu, “Theoretical analysis of RF-DC conversion efficiency for class-F rectifiers,” IEEE Trans. microwave theory and Tech., vol. 62, no. 4, Apr. 2014.
[16]J. K. Huang, W. T. Hung, T.-H. Cheng, and S. Y. Chen, “A 2.45-GHz high-efficiency loop-shaped PIFA rectenna for portable devices and wireless sensors,” in Proc. IEEE International Sym. Antennas and Propag. & USNC/URSI National Radio Science Meeting, July 2015, pp. 1284-1285.
[17]T. Q. V. Hoang, A. Douyere, J. L. Dubard, and J. D. Lan Sun Luk, “TLM Design of a compact PIFA rectenna,” in Proc. Electromagnetics in Advanced Applications (ICEAA), Torino, Sept. 2011. pp. 508-511.
[18]H. Takhedmit, B. Merabet, L. Cirio, B. Allard, F. Costa, C. Vollaire, and O. Picon, “A 2.45GHz dual-Diode RF to dc rectifier for rectenna Applications,” in Proc. Microwave Conf. (EuMC), 2010 European, Paris,Sep. 2010, pp. 37-40.
[19]Y. J. Ren and K. Chang, “5.8-GHz circularly polarized dual-diode rectenna and rectenna array for microwave power transmission,” IEEE Trans. Microwave Theory Tech., vol. 54, no. 4, pp. 1495-1502, Apr. 2006.
[20]J. Guo and X. Ahu, “An improved analytical model for RF-DC conversion efficiency in microwave rectifiers,” in Proc. IEEE MIT-S Int. Microwave Symp. Dig., Jun. 2012, pp. 1-3.
[21]J.-Y. Park, S.-M. Han, and T. Itoh, “A rectenna design with harmonic-rejecting circular-sector antenna,” IEEE Antennas Wireless Propag. Lett., vol. 3, pp. 52-54, Dec. 2004.
[22]M. Ali, G. Yang, and R. Dougal, “A novel cross-shape DGS applied to design ultra-wide stopband low-pass filters,” IEEE Microwave and Wireless Components. Lett , vol. 16, no. 5, pp. 252-254, May 2006.
[23]David K. Cheng, Field and Wave Electromagnetics, 2nd ed, Pearson College Div, 1989.
[24]David M. Pozar, Microwave Engineering, John Wiley & Sons, Inc., 2005.
[25]C. A. Balanis, Antenna Theory: Analysis and Design, 3nd ed., John Wiley & Sons, Inc. New York, 2005.
[26]Niazul Islam Khan, Anwarul Azim, and Shadli Islam, “Radiation Characteristics of a Quarter-Wave Monopole Antenna above Virtual Ground,” Journal of Clean Energy Technologies, vol. 2, no. 4, Oct. 2014.
[27]W. F. Richards, J. D. OU, and S. A Long, ”A theoretical and experimental investigation of annular, annular sector, and circular sector microstrip antennas,” IEEE Trans. Antenna and Propag., vol. 32, no. 8, Aug. 1984.
[28]V. K. Tiwari, A. Kimothi, D. Bhatnagar, J. S. Saini, V. K. Saxena, and P. Kumar, “Theoretical analysis on circular sector microstrip antennas,” Pro. IJRSP, vol. 35, Apr. 2006.
[29]M. A. Sultan and V. K. Tripathi, “The mode features of an annular sector microstrip antenna,” IEEE Trans. Antenna and Propag., vol. 38, no. 2, Feb. 1990.
[30]J. Heikkinen and M. Kivikoski, “Low-Profile Circularly Polarized Rectifying Antenna for Wireless Power Transmission at 5.8 GHz,” IEEE Microwave and Wireless Components. Lett , vol.14, no. 4, Apr. 2004.