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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 周錫增 | zh_TW |
| dc.contributor.advisor | Hsi-Tseng Chou | en |
| dc.contributor.author | 周晁揚 | zh_TW |
| dc.contributor.author | Chao-Yang Chou | en |
| dc.date.accessioned | 2023-10-03T17:32:28Z | - |
| dc.date.available | 2023-11-10 | - |
| dc.date.copyright | 2023-10-03 | - |
| dc.date.issued | 2022 | - |
| dc.date.submitted | 2023-08-08 | - |
| dc.identifier.citation | Zachariah Peterson. Coax-fed patch antenna design. Altium RF design, 2023.
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/90770 | - |
| dc.description.abstract | 本論文提出一可用於低軌衛星(LEO)通訊之Ku-band圓極化透射陣列(Transmit-array)單元以及透射陣列。其工作頻段為10.5GHz~14.7GHz，可完整涵蓋Ku-band所需之頻率，並使得整體系統能夠提供更高的場型增益以達到低軌衛星通訊高增益的要求。
相較於傳統的透射陣列，本研究使用了Berry Phase 的相位變化機制以及雙焦點(Bifocal)的陣列相位分布方式設計透射陣列，以提供更寬的工作頻率和波束掃描特性。本研究將以應用於LEO的透射陣列單元為出發點，比較各種被動式透射陣列單元的特性與機制，從中排列成陣列並加入8x8天線陣列以及4x4天線陣列激發加以模擬驗證。最後將會用組合式的製作方式製作出透射陣列，以節省製作成本，並透過量測，分析相關的製作誤差影響，並加以分析及驗證特性。 本研究提出的透射陣列，相較於同增益的主動式相位陣列天線，能夠降低成本，但可提供相似的特性，並可廣泛應用於低軌衛星(LEO)通訊基站…等相關研究。 | zh_TW |
| dc.description.abstract | This paper proposes a Ku-band circularly polarized Transmit-array element and Transmit-array for low Earth orbit (LEO) communication. The operating frequency range is 10.5 GHz to 14.7 GHz, covering the required frequencies for Ku-band communication, and providing higher beamforming gain for achieving high-gain communication with LEO satellites.
Compared to traditional Transmit-array, this study designs the Transmit-array using the Berry Phase phase variation mechanism and bifocal array phase distribution to achieve a wider operating frequency range and beam scanning characteristics. Starting from the Transmit-array element for LEO application, this study compares the characteristics and mechanisms of various passive Transmit-array units, arranges them into arrays, and simulates and verifies them with 8x8 and 4x4 antenna arrays. Finally, a hybrid fabrication method will be used to fabricate the Transmit-array to reduce fabrication cost, and the fabrication errors will be analyzed and verified through measurement. The proposed Transmit-array in this study has a lower cost compared to a phased array antenna with similar gain and can be widely applied in LEO communication base stations and other related research. | en |
| dc.description.provenance | Submitted by admin ntu (admin@lib.ntu.edu.tw) on 2023-10-03T17:32:28Z No. of bitstreams: 0 | en |
| dc.description.provenance | Made available in DSpace on 2023-10-03T17:32:28Z (GMT). No. of bitstreams: 0 | en |
| dc.description.tableofcontents | 口試委員審定書 i
摘要 iii Abstract v 目錄 vii 圖目錄 xi 表目錄 xvii 第一章 緒論 1 1.1 研究動機 1 1.2 論文貢獻與架構 2 第二章 文獻回顧 3 2.1 Transmitarray Antenna 文獻回顧 3 2.2 Patch Antenna 文獻回顧 6 第三章 透射陣列單元設計與模擬 9 3.1 Dynamic Phase (DP) 透射陣列單元文獻回顧與設計 9 3.2 Dynamic Phase (DP) 透射陣列單元 17 3.2.1 Dynamic Phase (DP) 透射陣列單元模擬 17 3.2.2 Dynamic Phase (DP) 透射陣列單元參數分析 19 3.2.3 Dynamic Phase (DP) 透射陣列單元模擬結果 24 3.3 Berry Phase (BP) 透射陣列單元文獻回顧與設計 27 3.4 Berry Phase (BP) 透射陣列單元與模擬 31 3.4.1 Berry Phase (BP) 透射陣列單元模擬 31 3.4.2 Berry Phase (BP) 透射陣列單元參數分析 40 3.4.3 Berry Phase (BP) 透射陣列單元模擬結果 46 第四章 透射陣列設計與模擬 53 4.1 透射陣列相位設計 53 4.2 透射陣列模擬 58 4.3 透射陣列及 8x8 天線陣列模擬 62 4.4 透射陣列及 4x4 天線陣列模擬 66 4.5 透射陣列量測前各項誤差及結構模擬 71 第五章 透射陣列量測 77 5.1 實驗量測架設及環境 77 5.2 Ku-band 雙極化激發天線陣列量測 81 5.2.1 Ku-band 雙極化激發天線陣列波束成型及相位校正 82 5.2.1.1 傳統天線陣列波束成型理論回顧 82 5.2.1.2 具相位校正功能之天線陣列波束成型介紹 84 5.2.2 Ku-band 雙極化激發天線陣列量測 (TX 頻段) 94 5.2.3 Ku-band 雙極化激發天線陣列量測 (RX 頻段) 97 5.3 透射陣列天線量測 101 5.3.1 透射陣列天線量測 (TX 頻段) 102 5.3.2 透射陣列天線量測 (RX 頻段) 107 5.4 量測結果與分析 113 第六章 結論 117 參考文獻 121 | - |
| dc.language.iso | zh_TW | - |
| dc.subject | Berry Phase | zh_TW |
| dc.subject | 透射陣列單元 | zh_TW |
| dc.subject | 透射陣列 | zh_TW |
| dc.subject | 低軌衛星 | zh_TW |
| dc.subject | 雙焦點設計(Bifocal) | zh_TW |
| dc.subject | Berry Phase | en |
| dc.subject | low Earth orbit | en |
| dc.subject | Transmit-array | en |
| dc.subject | Transmit-array element | en |
| dc.subject | bifocal design | en |
| dc.title | 用於 LEO 之透射陣列單元與透射陣列設計 | zh_TW |
| dc.title | Design of the Transmit-array element and Transmit-array that apply on LEO | en |
| dc.type | Thesis | - |
| dc.date.schoolyear | 111-2 | - |
| dc.description.degree | 碩士 | - |
| dc.contributor.oralexamcommittee | 盧信嘉;鄭宇翔;林丁丙;段世中 | zh_TW |
| dc.contributor.oralexamcommittee | Hsin-Chia Lu;Yu-Hsiang Cheng;Ding-Bing Lin;Shih-Chung Tuan | en |
| dc.subject.keyword | 透射陣列單元,透射陣列,低軌衛星,Berry Phase,雙焦點設計(Bifocal), | zh_TW |
| dc.subject.keyword | Transmit-array element,Transmit-array,low Earth orbit,Berry Phase,bifocal design, | en |
| dc.relation.page | 126 | - |
| dc.identifier.doi | 10.6342/NTU202302528 | - |
| dc.rights.note | 未授權 | - |
| dc.date.accepted | 2023-08-09 | - |
| dc.contributor.author-college | 電機資訊學院 | - |
| dc.contributor.author-dept | 電信工程學研究所 | - |
| 顯示於系所單位： | 電信工程學研究所 | |
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