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姓名 林承逸(Cheng-Yi Lin) 查詢紙本館藏 畢業系所 電機工程學系 論文名稱 應用於星鏈低軌衛星通訊系統之雙極化 槽孔耦合貼片天線陣列設計
(Design of Dual-Polarization Aperture-Coupled Patch Antenna Array for Starlink Applications)相關論文 檔案 [Endnote RIS 格式]
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至系統瀏覽論文 (2029-7-1以後開放)
摘要(中) 本論文提出應用於星鏈(Starlink)低軌衛星通訊系統之雙極化槽孔耦合貼片天線陣
列設計，可提供 Ku-band 之下行接收(10.7~12.7 GHz)與上行發射(13.75~14.5 GHz)頻段使
用，並且分別設計了針對兩個頻段的單一天線和天線陣列。天線陣列設計為固定波束的
形式，以 2×2 及 4×4 的方式作排列。單一天線及天線陣列是透過槽孔耦合的方式進行饋
入，天線槽孔和饋入結構以 T 型方式排列，以提高天線的隔離度，天線的阻抗頻寬是透
過對接地面的槽孔進行切割設計來實現。
天線實作量測之結果符合星鏈低軌衛星通訊系統頻寬規格，下行接收頻段各天線埠
一及埠二量測的阻抗頻寬：單一天線為 20.9 % (10.5~12.9 GHz)和 21.8 % (10.66~13.28
GHz)，2×2 天線陣列均為 21.2 % (10.5~13 GHz)，4×4 天線陣列為 20.62 % (10.57~13 GHz)
和 20.15 % (10.62~13 GHz)，量測之隔離度以上均大於 23.9 dB。單一天線量測增益在 0
度方向均大於 6 dBi，2×2 天線陣列為 10.4~13.37 dBi，4×4 天線陣列為 13.85~17.69 dBi。
上行發射頻段各天線埠一及埠二量測的阻抗頻寬：單一天線均為 8.5 % (13.5~14.7 GHz)，
2×2 天線陣列為 6.75 % (13.74~14.7 GHz)和 8.5% (13.5~14.7 GHz)，4×4 天線陣列均為
8.5% (13.5~14.7 GHz)，量測之隔離度以上均大於 25 dB。單一天線量測增益在 0 度方向
均大於 6 dBi，2×2 天線陣列為 9.3~11.17 dBi，4×4 天線陣列為 16.51~18.39 dBi。摘要(英) The thesis presents the design of a dual-polarization aperture-coupled patch antenna array
for Starlink applications. The proposed antennas operate in the Ku-band, specifically for
downlink reception at 10.7-12.7 GHz and uplink transmission at 13.75-14.5 GHz. The design
includes fixed beam 2×2 and 4×4 arrays. Both the single antenna and the antenna arrays utilize
aperture coupling, with antenna slots and feed structures arranged in a T-shaped configuration
to enhance isolation. Impedance bandwidth is achieved by slot cutting on the grounding plane.
The measured results of the antenna conform to the bandwidth specifications for the
Starlink applications.The measured impedance bandwidths for the downlink reception
frequencies are as follows: for the single antenna, it is 20.9% (10.5~12.9 GHz) and 21.8%
(10.66~13.28 GHz); for the 2×2 antenna array, it is 21.2% (10.5~13 GHz) for both; and for the
4×4 antenna array, it is 20.62% (10.57~13 GHz) and 20.15% (10.62~13 GHz). The measured
isolation for all configurations is greater than 23.9 dB. The measured gain for the single antenna
is greater than 6 dBi in the 0-degree direction. For the 2×2 antenna array, it ranges from 10.4 to
13.37 dBi, and for the 4×4 antenna array, it ranges from 13.85 to 17.69 dBi. For the uplink
transmission frequencies, the measured impedance bandwidths are as follows: for the single
antenna, it is 8.5% (13.5~14.7 GHz) for both; for the 2×2 antenna array, it is 6.75% (13.74~14.7
GHz) and 8.5% (13.5~14.7 GHz); and for the 4×4 antenna array, it is 8.5% (13.5~14.7 GHz)
資 for both. The measured isolation for all configurations is greater than 25 dB. The measured
gain for the single antenna is greater than 6 dBi in the 0-degree direction. For the 2×2 antenna
array, it ranges from 9.3 to 11.17 dBi, and for the 4×4 antenna array, it ranges from 16.51 to
18.39 dBi關鍵字(中) ★ 天線陣列
★ 星鏈低軌衛星通訊系統
★ 雙極化
★ 槽孔耦合關鍵字(英) 論文目次 摘要................................................................................................................................. ...........i
Abstract............................................................................................................................ ..........ii
誌謝................................................................................................................................. .........iii
目錄................................................................................................................................. .........iv
圖目錄............................................................................................................................. ........vii
表目錄............................................................................................................................. ........xii
第一章 序論................................................................................................................... .......... 1
1-1 研究動機................................................................................................................ .......... 1
1-2 文獻回顧................................................................................................................ .......... 3
1-3 章節介紹................................................................................................................ .......... 8
第二章 天線基礎理論................................................................................................... .......... 9
2-1 簡介........................................................................................................................ .......... 9
2-1-1 基本型貼片天線................................................................................................................ 10
2-1-2 貼片天線饋入方式............................................................................................................ 13
2-1-3 雙極化天線(Dual Polarization Antenna)........................................................................... 15
2-2 天線陣列理論簡介................................................................................................ ........ 16
2-3 天線製程介紹........................................................................................................ ........ 19
第三章 星鏈低軌衛星通訊下行接收頻段之單一雙極化槽孔耦合貼片天線設計... ........ 20
3-1 簡介........................................................................................................................ ........ 20
3-2 下行接收頻段之單一雙極化槽孔耦合天線演進流程........................................ ........ 23
3-2-1 初期設計背板厚度分析.................................................................................................... 32
v
3-3 模擬與量測結果.................................................................................................... ........ 33
3-4 結論........................................................................................................................ ........ 42
第四章 星鏈低軌衛星通訊下行接收頻段之 2×2 雙極化槽孔耦合貼片天線陣列設計.... 43
4-1 簡介........................................................................................................................ ........ 43
4-2 下行接收頻段 2×2 雙極化槽孔耦合貼片天線陣列設計.................................... ........ 43
4-2-1 雙極化槽孔耦合貼片天線陣列之天線間距模擬參數分析 ............................................ 44
4-2-2 應用於 2×2 天線陣列之 T 型(T-junction)功率分配器設計............................................ 54
4-2-3 功率分配器結合 2×2 雙極化槽孔耦合貼片天線陣列.................................................... 59
4-3 模擬與量測結果.................................................................................................... ........ 60
4-4 結論........................................................................................................................ ........ 69
第五章 星鏈低軌衛星通訊下行接收頻段之 4×4 雙極化槽孔耦合貼片天線陣列設計.... 70
5-1 簡介........................................................................................................................ ........ 70
5-2 下行接收頻段 4×4 雙極化槽孔耦合貼片天線陣列設計.................................... ........ 70
5-2-1 下行接收頻段 4×4 雙極化槽孔耦合貼片天線陣列模擬結果........................................ 71
5-2-2 應用於 4×4 天線陣列之 T 型(T-junction)功率分配器設計............................................ 80
5-2-3 功率分配器結合 4×4 雙極化槽孔耦合貼片天線陣列.................................................... 86
5-3 模擬與量測結果.................................................................................................... ........ 87
5-4 結論........................................................................................................................ ........ 96
第六章 星鏈低軌衛星通訊上行發射頻段之單一雙極化槽孔耦合貼片天線設計... ........ 96
6-1 簡介........................................................................................................................ ........ 97
6-2 上行發射頻段單一雙極化槽孔耦合貼片天線設計............................................ ........ 97
6-3 模擬與量測結果.................................................................................................... ...... 100
vi
6-4 結論........................................................................................................................ ...... 105
第七章 星鏈低軌衛星上行發射頻段之 2×2 雙極化槽孔耦合貼片天線陣列設計... ...... 106
7-1 簡介........................................................................................................................ ...... 106
7-2 上行發射頻段 2×2 雙極化槽孔耦合貼片天線陣列設計.................................... ...... 106
7-2-1 應用於 2×2 天線陣列之 T 型(T-junction)功率分配器設計.......................................... 107
7-2-2 功率分配器結合 2×2 雙極化槽孔耦合貼片天線陣列.................................................. 111
7-3 模擬與量測結果.................................................................................................... ...... 112
7-4 結論........................................................................................................................ ...... 117
第八章 星鏈低軌衛星通訊上型發射頻段之 4×4 雙極化槽孔耦合貼片天線陣列設計.. 118
8-1 簡介........................................................................................................................ ...... 118
8-2 上行發射頻段之雙極化貼片 4×4 天線陣列設計................................................ ...... 118
8-2-1 適用於 4×4 天線陣列之 T 型(T-junction)功率分配器設計.......................................... 119
8-2-2 功率分配器結合 4×4 雙極化貼片天線陣列.................................................................. 124
8-3 模擬與量測結果.................................................................................................... ...... 125
8-4 結論........................................................................................................................ ...... 130
第九章 結論................................................................................................................... ...... 131
附錄一 應用於相位差定位系統之 1×2 超寬頻圓極化天線....................................... ...... 132
簡介 ............................................................................................................................... ...... 132
應用於相位差定位系統之 1×2 超寬頻圓極化天線設計........................................... ...... 133
模擬與量測結果 ........................................................................................................... ...... 137
結論………………………………………………………………………………………...132
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