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。;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
