請用此 Handle URI 來引用此文件:
http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/61385
完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 陳士元(Shih-Yuan Chen) | |
dc.contributor.author | Li-Yuan Fang | en |
dc.contributor.author | 方俐媛 | zh_TW |
dc.date.accessioned | 2021-06-16T13:02:00Z | - |
dc.date.available | 2016-08-09 | |
dc.date.copyright | 2013-08-09 | |
dc.date.issued | 2013 | |
dc.date.submitted | 2013-08-06 | |
dc.identifier.citation | [1] C. M. Coleman, E. J. Rothwell, J. E. Ross, and L. L. Nagy, “Self-structuring antennas,” IEEE Antennas Propagat. Mag., vol. 44, no. 3, pp. 11–23, Jun. 2002.
[2] C. M. Coleman, E. J. Rothwell, and J. E. Ross, “Investigation of simulated annealing, ant-colony optimization, and genetic algorithms for self-structuring antennas.” IEEE Trans. Antennas Propagat., vol. 52, no. 4, pp. 1007–1014, Apr. 2004. [3] L. Greetis, R. Ouedraogo, B. Greetis, and E. J. Rothwell, “A self-structuring patch antenna: simulation and prototype,” IEEE Antennas Propagat. Mag., vol. 52, no. 1, pp. 114–123, Feb. 2010. [4] E. J. Rothwell, C.-H. Lee, B. J. Greetis, R. O. Ouedraogo, and S.-Y. Chen, “A self-structuring 2-port network,” in IEEE AP-S Int. Symp and URSI Radio Science Meeting, Charleston, SC, Jun. 2009. [5] R. O. Ouedraogo, E. J. Rothwell, S.-Y. Chen, and A. Temme, “A self-tuning electromagnetic shutter,” IEEE Trans. Antennas Propagat., vol. 59, no. 2, pp. 513–519, Feb. 2011. [6] M. Paquay, J.-C. Iriarte, I. Ederra, R. Gonzalo, and P. D. Maagt, “Thin AMC structure for rad-cross section deduction,” IEEE Trans. Antennas Propagat., vol.55, no. 12, pp. 3630–3638, Dec. 2007. [7] N. Misran, R. Cahill, and V. F. Fusco, “Reduction technique for reflectarray antennas,” Electron. Lett., vol. 39, pp. 1630–1632, 2003. [8] W. Jiang, Y. Liu, S. X. Gong, and T. Hong, “Application of bionics in antenna radar cross section reduction,” IEEE Antennas Wireless Propag. Lett., vol. 8, pp. 1275–1278, 2009. [9] E. Michielssen and R. Mittra, “RCS reduction of dielectric cylinders using the simulated annealing approach,” IEEE Microwave and Guided Wave Letters, vol.2, no. 2, pp. 146–148, Apr. 1992. [10] H. Mosallaei, Y. Rahmat-Samii, “RCS reduction of canonical targets isomg genetic algorithm synthesized RAM,” IEEE Trans. Antennas Propagat., vol.48, no. 10, pp. 1594–1606, Oct. 2000. [11] B. Chaudhury and S. Chaturvedi, “Study and optimization of plasma-based radar cross section reduction using three-dimensional computations,” IEEE Trans.Plasma Sci., vol.37, no. 11, pp. 2116–2127, Nov. 2009. [12] H. C. Strifors and G. C. Gauanurd, “Scattering of electromagnetic pulses by simple-shaped targets with radar cross section modified by a dielectric coating,” IEEE Trans. Antennas Propagat., vol. 46, no. 9, pp. 1252–1262, Sept. 1998. [13] S.-Y. Chen, R. O. Ouedraogo, B. J. Greetis, and E. J. Rothwell, “A reconfigurable electromagnetic scatterer,” in IEEE AP-S Int. Symp and URSI Radio Science Meeting, Charleston, SC, Jun. 2009. [14] Y.-S. Chen, Y.-C. Chan, H.-J. Li, E. J. Rothwell, R. O. Ouedraogo, and S.-Y. Chen, “A self-structuring electromagnetic scatterer,” IEEE Trans. Antennas Propagat., vol. 60, no. 4, pp. 1931–1941, Apr. 2012. [15] E. H. Newman and D. Forrai, “Scattering from microstrip patch,” IEEE Trans. Antennas Propagat., vol. AP-35, no. 3, pp. 254-251, Mar. 1987. [16] J.-M. Jin and J. L. Volakis, “Electromagnetic scattering by a perfectly conducting patch array on a dielectric slab,” IEEE Trans. Antennas Propagat., vol. 38, no. 4, pp. 556-563, Apr. 1990. [17] J. D. Kraus and R. J. Marhefka, Antennas: For All Applications. NY: McGraw-Hill, 2003, ch. 5. [18] J. H. Holland, Adaptation in Natural and Artificial Systems. MA: A Bradford Book, 1992. [19] E. Zitzler, M. Laumanns, and L. Thiele, “SPEA2: Improving the strength pareto evolutionary algorithm for multiobjective optimization,” in Evolutionary Methods for Design, Optimization and Control, Barcelona, Spain, 2002. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/61385 | - |
dc.description.abstract | 本文提出一新型具金屬背板之自組式散射體。自組式散射體係藉由金屬線段長度之改變,其散射電場相位亦隨之改變,因此運用電腦演算法計算找出最合適之金屬線段組態,調控散射體之散射場型,達到在特定方向之雷達散射截面積之最大化或最小化。此具金屬背板之自組式散射體,因金屬背板之散射電場對金屬線段散射電場造成建設性或破壞性干涉,使金屬線段長度改變時,所能調控之散射電場相位範圍大幅增加。因相位增加,使自組式散射體可控制性提升,此結構除了於單一頻率點單一角度之單目標散射場最佳化,可應用之目標角度範圍增加,本文亦更進一步討論該結構於特定角度下,具頻寬之多目標最佳化、以及於特定頻率下,多角度之散射場多目標最佳化。以上均透過電磁模擬軟體及實作量測進行驗證及討論。 | zh_TW |
dc.description.abstract | A self-structuring electromagnetic scatterer (SSES) based on a novel conductor-backed template is proposed. The SSES with an embedded genetic algorithm can alter its electrical shape to fulfill different scattering objectives, such as radar cross section (RCS) reduction or beam steering of the scattering pattern. Each constituent element in this conductor-backed SSES template has a larger tuning phase range so that it outperforms the previous version without the back conducting plane. The proposed SSES template with the multiple-objective fitness function being used in the search algorithm is capable of RCS reduction or beam steering at not only one single specified direction or frequency point but also within an angular range or a frequency band. The performance of the proposed SSES is verified by both full-wave simulations and experimental measurements. | en |
dc.description.provenance | Made available in DSpace on 2021-06-16T13:02:00Z (GMT). No. of bitstreams: 1 ntu-102-R00942010-1.pdf: 3238202 bytes, checksum: ceb1b142c4a0b2b1377e39ce85247468 (MD5) Previous issue date: 2013 | en |
dc.description.tableofcontents | 口試委員會審定書 i
誌 謝 iii 摘 要 v Abstract vii Contents ix List of Figures xi List of Tables xvii Chapter 1 Introduction 1 1.1 Paper Survey and Motivation 1 1.2 Chapter Outline 3 Chapter 2 SSES Using Conductor-Backed Template 5 2.1 Conductor-Backed SSES Template 5 2.2 Genetic Algorithm 11 2.3 Simulation Setup 13 2.4 Measurement Setup 14 Chapter 3 SSES Performance Based on Single-Objective RCS Optimization 20 3.1 Introduction 20 3.2 Simulation Results 20 3.3 Measurement 34 Chapter 4 SSES Performance Based on Multi-Objective RCS Optimization 43 4.1 Introduction 43 4.2 Simulation 43 4.3 Measurement 70 Chapter 5 Conclusions 83 5.1 Summary 83 5.2 Future Work 84 References 85 | |
dc.language.iso | en | |
dc.title | 具金屬背板之自組式散射體 | zh_TW |
dc.title | Self-Structuring Electromagnetic Scatterer Using a Conductor-Backed Template | en |
dc.type | Thesis | |
dc.date.schoolyear | 101-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 張道治(Dau-Chyrh Chang),許博文(Powen Hsu),李學智(Hsueh-Jyh Li) | |
dc.subject.keyword | 自組式散射體,雷達散射截面積,基因演算法, | zh_TW |
dc.subject.keyword | self-structuring electromagnetic scatterer,radar cross-section,genetic algorithm, | en |
dc.relation.page | 87 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2013-08-07 | |
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 |
文件中的檔案:
檔案 | 大小 | 格式 | |
---|---|---|---|
ntu-102-1.pdf 目前未授權公開取用 | 3.16 MB | Adobe PDF |
系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。