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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 陳丕燊 | zh_TW |
| dc.contributor.advisor | Pisin Chen | en |
| dc.contributor.author | 蘇士傑 | zh_TW |
| dc.contributor.author | Shih-Chieh Su | en |
| dc.date.accessioned | 2024-08-08T16:43:37Z | - |
| dc.date.available | 2024-10-17 | - |
| dc.date.copyright | 2024-08-08 | - |
| dc.date.issued | 2024 | - |
| dc.date.submitted | 2024-08-01 | - |
| dc.identifier.citation | D. Michilli, A. Seymour, J. W. T. Hessels, L. G. Spitler, V. Gajjar, A. M. Archibald, G. C. Bower, S. Chatterjee, J. M. Cordes, K. Gourdji, G. H. Heald, V. M. Kaspi, C. J. Law, C. Sobey, E. A. K. Adams, C. G. Bassa, S. Bogdanov, C. Brinkman, P. Demorest, F. Fernandez, G. Hellbourg, T. J. W. Lazio, R. S. Lynch, N. Maddox, B. Marcote, M. A. McLaughlin, Z. Paragi, S. M. Ransom, P. Scholz, A. P. V. Siemion, S. P. Tendulkar, P. Van Rooy, R. S. Wharton, and D. Whitlow. An extreme magneto-ionic environment associated with the fast radio burst source frb 121102. Nature, 553:182–185, jan 2018.
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/93879 | - |
| dc.description.abstract | 本論文介紹了用於快速電波暴（FRB）探測的磁電偶極天線（MED天線）的開發，該天線用於台灣宇宙電波爆廣角監測實驗（BURSTT）。BURSTT 提供約 100°×100° 的視野（FoV）和亞角秒的定位能力，以發現並定位大量高能量通量、近距離的 FRB。作為 BURSTT 的接收天線，MED 天線提供 80°×80° 的寬視角，寬頻帶（300-800 MHz），以及高增益（約 7 dBi），並具有緊湊的尺寸（45×45×17cm³）。我們設計了一個天線罩以罩住整個 MED 天線及其集成的射頻前端設備，形成一個模組化的射頻前端系統。這個模組化的系統為 BURSTT 計劃擴展到 2048 個通道提供了一個具成本效益且易於維護的解決方案，是熱帶地區天線陣列的理想選擇，能夠抵抗暴雨和颱風。該系統已成功部署於 BURSTT 南投外圍站的 64 個通道，並持續運行，驗證了該設計的可靠性。本論文介紹了 FRB 的現象學和 BURSTT 的目標，並討論了 MED 天線的原理、設計、製造、性能以及安裝。 | zh_TW |
| dc.description.abstract | This thesis presents the development of the Magneto-Electric Dipole (MED) antenna for Fast Radio Burst (FRB) detection, used in the Bustling Universe Radio Survey Telescope in Taiwan (BURSTT). BURSTT provides a Field of View (FoV) of approximately 100°×100° and a subarcsecond localization ability to discover and localize a large sample of high-fluence, nearby FRBs. The MED antenna, serving as the receiver antennas for BURSTT, offers a wide FoV of 80°×80°, wide bandwidth (300-800 MHz), and high gain (~7 dBi) within a compact size (45×45×17cm³). A radome is designed to enclose the entire MED antenna with integrated RF front-end electronics, forming a modularized RF front-end system. This modular system provides a cost-effective and easy-to-maintain solution for the planned expansion of BURSTT to 2048 channels, making it an ideal choice for antenna arrays in tropical regions, capable of withstanding heavy rains and typhoons. The system has been successfully deployed with 64 channels at the Nantou outrigger station of BURSTT and is under continuous operation, validating the reliability of this design. This thesis introduces the phenomenology of FRBs and the objectives of BURSTT, followed by discussions on the principles, design, fabrication, performance, and installation of the MED antenna. | en |
| dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2024-08-08T16:43:37Z No. of bitstreams: 0 | en |
| dc.description.provenance | Made available in DSpace on 2024-08-08T16:43:37Z (GMT). No. of bitstreams: 0 | en |
| dc.description.tableofcontents | Verification Letter from the Oral Examination Committee ----- i
Acknowledgements ----- iii 摘要 ----- v Abstract ----- vii Contents ----- ix List of Figures ----- xiii List of Tables ----- xvii Denotation ----- xix Chapter 1 Introduction ----- 1 1.1 Introduction to Fast Radio Bursts (FRBs) ----- 1 1.2 A Brief History of FRBs Observation ----- 2 1.3 FRB Phenomenology ----- 3 1.3.1 Spectral and Temporal Properties ----- 3 1.3.2 Distance and Dispersion Measure ----- 5 1.3.3 Brightness and Energy ----- 8 1.3.4 Repeating FRBs ----- 9 1.4 Detection of FRBs ----- 10 Chapter 2 Bustling Universe Radio Survey Telescope in Taiwan (BURSTT) ----- 13 2.1 Observation Objectives ----- 13 2.2 Telescope Sites ----- 15 2.2.1 Site Surveys ----- 15 2.2.2 Fushan Main Station ----- 16 2.2.3 Nantou Outrigger Station----- 17 2.3 Signal Chain ----- 18 2.3.1 Receivers ----- 18 2.3.2 Front-End ----- 20 2.3.3 Back-End ----- 20 Chapter 3 Magneto-Electric Dipole (MED) Antenna ----- 23 3.1 Complementary Antennas ----- 23 3.2 Variety of MED Antennas ----- 26 3.3 Ultra-Wideband (UWB) MED Antennas ----- 29 Chapter 4 Designs of Magneto-Electric Dipole Antenna for BURSTT ----- 31 4.1 Antenna Requirements for BURSTT ----- 31 4.2 High Frequency Structure Simulator (HFSS) ----- 33 4.3 Antenna Re-Scaling ----- 35 4.4 Parameter Studies for Antenna Optimization ----- 35 Chapter 5 Fabrication of Magneto-Electric Dipole Antenna for BURSTT ----- 41 5.1 Antenna Prototypes ----- 41 5.1.1 Designs of Antennas ----- 41 5.1.2 Designs of Supporting Structures ----- 47 5.1.2.1 Feed Mount ----- 47 5.1.2.2 Feed Spacer ----- 51 5.2 Designs of Radome ----- 54 5.2.1 Concepts and Material -----54 5.2.2 Integration with Front-end-electronics Box ----- 55 5.2.3 Shape and Fabrication of Radome ----- 56 5.2.4 Influence of Radome on Antenna Performance ----- 59 Chapter 6 Measurement ----- 61 6.1 Measurement Setup ----- 61 6.2 Antenna Return Loss ----- 64 6.3 Antenna Phase Center ----- 65 6.4 Antenna Gain ----- 68 6.5 Antenna Radiation Pattern ----- 70 Chapter 7 Deployment of Antenna Array in BURSTT Nantou Site ----- 73 7.1 Deployment of 64 Channels MED Antenna Array ----- 73 7.1.1 Performance of 64 MED Antennas ----- 73 7.1.2 Antenna Array in Nantou Outrigger Station ----- 74 7.2 Spectra Recorded ----- 76 Chapter 8 Conclusion ----- 79 References ----- 81 | - |
| dc.language.iso | en | - |
| dc.title | 應用於BURSTT天線陣列的寬頻磁電偶極天線設計 | zh_TW |
| dc.title | Development of a Wideband Magneto-Electric Dipole Antenna for BURSTT Antenna Array | en |
| dc.type | Thesis | - |
| dc.date.schoolyear | 112-2 | - |
| dc.description.degree | 碩士 | - |
| dc.contributor.coadvisor | 南智祐 | zh_TW |
| dc.contributor.coadvisor | Jiwoo Nam | en |
| dc.contributor.oralexamcommittee | 林凱揚;李昭德;王士豪 | zh_TW |
| dc.contributor.oralexamcommittee | Kai-Yang Lin;Chao-Te Li;Shih-Hao Wang | en |
| dc.subject.keyword | 快速電波爆,磁電偶極天線,超寬頻天線設計,BURSTT, | zh_TW |
| dc.subject.keyword | Fast Radio Burst,Magneto-Electric Dipole Antenna,Design of ultra wideband antenna,BURSTT, | en |
| dc.relation.page | 91 | - |
| dc.identifier.doi | 10.6342/NTU202402165 | - |
| dc.rights.note | 同意授權(全球公開) | - |
| dc.date.accepted | 2024-08-05 | - |
| dc.contributor.author-college | 理學院 | - |
| dc.contributor.author-dept | 物理學系 | - |
| 顯示於系所單位： | 物理學系 | |
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