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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43691完整後設資料紀錄
| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 吳瑞北(Ruey-Beei Wu) | |
| dc.contributor.author | Wei-Hsin Wang | en |
| dc.contributor.author | 王維新 | zh_TW |
| dc.date.accessioned | 2021-06-15T02:26:07Z | - |
| dc.date.available | 2011-08-20 | |
| dc.date.copyright | 2009-08-20 | |
| dc.date.issued | 2009 | |
| dc.date.submitted | 2009-08-17 | |
| dc.identifier.citation | [1] R. K. Settaluri, G. Sundberg, A. Weisshaar, and V. K. Tripathi, “Compact folded line rat-race hybrid couplers,” IEEE Microwave Guided Wave Lett.., vol. 10, pp. 61-63, Feb. 2000.
[2] T. Hirota, A. Minakawa, and M. Muraguchi, “Reduced-size branch-line and rat-race hybrids for uniplanar MMIC’s,” IEEE Trans. Microwave Theory Tech., vol. 38, pp. 270-275, Mar. 1990. [3] M.-L. Chuang, “Miniaturized ring coupler of arbitrary reduced size,” IEEE Microwave Wireless Compon. Lett., vol. 15, pp. 16-18, Jan. 2005. [4] J. Wang, B. Z. Wang, Y. X. Guo, L. C. Ong, and S. Xiao, “Compact slow-wave microstrip rat-race ring coupler,” Electron. Lett., vol. 43, no. 2, pp. 111-113, Jan. 2007 [5] Y. J. Sung, C. S. Ahn, and Y.-S. Kim, “Size reduction and harmonic suppression of rat-race hybrid coupler using defected ground structure,” IEEE Microwave Wireless Compon. Lett., vol. 14, pp. 7-9, Jan. 2004. [6] J. T. Kuo, J. S. Wu, and Y. C. Chiou, “Miniaturized rat race coupler with suppression of spurious passband,” IEEE Microwave Wireless Compon. Lett., vol. 17, no. 1, pp. 46-48, Jan. 2007 [7] J. T. Kuo, Y. C. Chiou, and J. S. Wu, “Miniaturized rat-race coupler with microstrip-to-CPW broadside-coupled structure and stepped-impedance sections,” in IEEE MTT-S Int. Microwave Symp. Dig., Honolulu, HI , Jun. 2007, pp.169-172 [8] S. March, “A wideband stripline hybrid ring,” IEEE Trans. Microwave Theory Tech., vol. 16, no. 6, pp. 361, June. 1968. [9] H. Okabe, C. Caloz ,and T. Itoh, “A compact enhanced-bandwidth hybrid ring using an artificial lumped-element left-handed transmission-line section,” IEEE Trans. Microwave Theory Tech., vol. 52, pp. 798-804, Mar. 2004. [10] C. H. Tseng and H. J. Chen, “Compact rat-race coupler using shunt-stub-based artificial transmission lines,” IEEE Microwave Wireless Compon. Lett., vol. 18, no. 11, pp. 734-736, Nov. 2008 [11] H. Uchida, N. Yoneda, Y. Konishi, and S. Makino, “Bandpass directional couplers with electromagnetically-coupled resonators,” in IEEE MTT-S Int. Microwave Symp. Dig., 2006, pp. 1563-1566. [12] W. L. Chang, T. Y. Huang, T. M. Shen, B. C. Chen, and R. B. Wu, “Design of compact branch-line coupler with coupled resonators,” in Asia-Pacific Microwave Conf., Dec. 2007, pp. 1375-1378. [13] W. H. Wang, T. M. Shen, T. Y. Huang, and R. B. Wu, “Miniaturized rat-race coupler with bandpass response and good stopband rejection,” IEEE MTT-S Int. Microwave Symp. Dig., pp.709-712, Jun. 2009. [14] J. S. Hong and M. J. Lancaster, Microstrip Filters for RF/Microwave Application. New York: Wiley, 2001, Ch.3, Ch.5, and Ch.8. [15] D. M. Pozar, Microwave engineering, 3rd ed. New York: Wiley, 2005, Ch.7. [16] M. Makimoto and S. Yamashita, “Bandpass filters using parallel coupled stripline stepped impedance resonators,” IEEE Trans. Microwave Theory Tech., vol. 28, pp. 1413- 1417, Dec. 1980. [17] M. Sagawa, M. Makimoto, and S. Yamashita, “Geometrical structures and fundamental characteristics of microwave stepped-impedance resonators,” IEEE Trans. Microwave Theory Tech., vol. 45, pp. 1078- 1085, July 1997. [18] C. F. Chen, T. Y. Huang, and R. B. Wu, “A miniaturized net-type microstrip bandpass filter using λ/8 resonators,” IEEE Microwave Wireless Compon. Lett., vol.15, pp. 481-483, July 2005. [19] C. F. Chen, T. Y. Huang, and R. B. Wu, “Novel compact net-type resonators and their applications to microstrip bandpass filters,” IEEE Trans. Microwave Theory Tech., vol. 54, pp. 755-762, Feb. 2006. [20] C. F. Chen, T. Y. Huang, and R. B. Wu, “Design of microstrip bandpass filters with multiorder spurious-mode suppression,” IEEE Trans. Microwave Theory Tech., vol. 53, pp. 3788-3793, Dec. 2005. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/43691 | - |
| dc.description.abstract | 本篇論文提出了數種利用耦合共振網路來實現的微小化環形耦合器。傳統環形耦合器所需的四分之一波長及四分之三波長傳輸線可以利用共振器之間的電耦合及磁耦合來加以取代。因此，傳統的環形耦合器可以轉變成一個耦合共振器網路。由於使用耦合共振器網路的架構，能量傳遞主要發生在共振器的共振頻率，所以使用這種方法合成的環形耦合器會具有帶通的特性。另一方面，耦合器的面積也會隨著共振器的縮小而減少。
為了小型化的需求，本論文提出了一利用彎折的四分之一波長共振器組成的環形耦合器，其面積只佔傳統耦合器的7%。此外，為了加強止帶的阻拒效能，具有控制諧波功能的網狀共振器被引入到耦合器的設計之中。所實現的環形耦合器面積只佔傳統耦合器的16.8%，同時具有30dB的止帶阻拒上至4.3倍的耦合器操作頻率。 | zh_TW |
| dc.description.abstract | This thesis presents several miniaturized rat-race couplers with coupled-resonator network. The -line and -line sections of conventional rat-race coupler can be replaced with electric and magnetic coupling between resonators due to the opposite phase responses of electric and magnetic coupling. Therefore, the conventional rat-race coupler can be transformed into a coupled-resonator network. As a result of the coupled-resonator configuration, power transmission mainly occurs at the common resonant frequencies of the resonators. Therefore, bandpass response can be achieved in this topology. On the other hand, the dimension of coupler can be reduced as the size of resonator becomes smaller.
For miniaturization, a rat-race coupler with meandered quarter-wavelength resonators is proposed in this thesis. The implemented coupler only occupies 7% circuit size of the conventional one. Furthermore, to enhance stopband performance, compact net-type resonator with controllable harmonics is introduced. By utilizing compact net-type resonators, the proposed rat-race coupler occupies 16.8% circuit size of the conventional design, while the rejection level in the stopband is better than 30dB up to 4.3f0. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-15T02:26:07Z (GMT). No. of bitstreams: 1 ntu-98-R96942011-1.pdf: 1281360 bytes, checksum: cf26a24d127d30fecfe75f58721e9a3e (MD5) Previous issue date: 2009 | en |
| dc.description.tableofcontents | Chapter 1 Introduction 1
1.1 Research Motivation 1 1.2 Literature Survey 1 1.3 Contributions 4 1.4 Organization of the Thesis 4 Chapter 2 Basic Theory of Coupled Resonator Circuit 7 2.1 Basic Theory of Coupling 7 2.1.1 Electric Coupling 7 2.1.2 Magnetic Coupling 9 2.1.3 Mixed Coupling 11 2.2 Basic Theory of External Quality Factor 12 2.3 Immittance Inverters 14 2.4 Equivalent Coupled Resonator Circuit of Rat-Race Coupler 16 Chapter 3 Analysis of Stepped-Impedance Resonators 29 3.1 Resonant Conditions 29 3.2 Characteristics of SIRs 31 3.3 Quarter-Wavelength SIRs 34 3.4 Net-Type Resonators 36 Chapter 4 Design of Compact Rat-Race Couplers with Coupled Resonators 39 4.1 Procedures of Designing a Rat-Race Coupler with Coupled Resonators 39 4.2 Coupler Design with Half-Wavelength Resonators 41 4.3 Coupler Design with Quarter-Wavelength Resonators 52 4.4 Coupler Design with Net-Type Resonators-1 63 4.5 Coupler Design with Net-Type Resonators-2 76 4.6 Discussions and Comparisons of the Designed Couplers 87 4.6.1 Discussions 87 4.6.2 Comparisons 92 Chapter 5 Conclusions 95 References 97 | |
| dc.language.iso | en | |
| dc.title | 以耦合共振器實現小型化環形耦合器之設計 | zh_TW |
| dc.title | Design of Compact Rat-Race Couplers with Coupled Resonators | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 97-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 王暉(Huei Wang),郭仁財(Jen-Tsai Kuo),毛紹綱(Shau-Gang Mao),盧信嘉(Hsin-Chia Lu) | |
| dc.subject.keyword | 環形耦合器,共振器,步階式阻抗共振器,小型化, | zh_TW |
| dc.subject.keyword | rat-race coupler,resonator,stepped-impedance resonator,compact, | en |
| dc.relation.page | 98 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2009-08-18 | |
| 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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