本論文主要討論三個項目，第一部分根據高速傳輸速率與數據吞吐量的需求，提出QSFP-DD高速連接器設計，此連接器採用了 8 個高速通道，全部傳輸速率可達到 800 Gbps，以高效且快速的傳輸大量資訊，滿足現代人對於高密度、高性能連接解決方案的需求，可成為現代數據中心和雲計算環境中的理想選擇。
第二部分，隨著航空產業的快速發展和無線通信技術的不斷創新，飛機通信系統的可靠性和效率已成為航空運輸安全和效率的關鍵因素。天線作為飛機通信系統中不可或缺的一部分，其性能直接關係到飛機與地面通信、飛行監控以及衛星定位系統的關鍵連接。因此，對於飛機天線的設計和性能要求越來越高。本論文提出可應用於飛機前端的L頻段雷達，此天線應用頻率為1030-1090MHz，其具有高增益與低反射損耗等良好特性，滿足高精度和高穩定性的要求，提高飛機的安全性。
第三部分，隨著技術的不斷進步，地面追蹤技術的安全性能將進一步提升。這項技術的安全性體現在數據的準確性以及對地面和空中潛在威脅的識別，讓地面上的人們能夠精確偵測目標的距離、速度和方位。為了提高地面追蹤技術的可靠性和精確性，本論文研究設計了一款可摺疊收納且具有高增益和高隔離度的追蹤天線，其中採用Yagi天線型式，以提高指向性和增益值，並在有限空間中滿足天線效能需求。

This thesis mainly discusses three topics. The first part proposes the QSFP-DD high speed connector based on the requirements of high-speed transmission rate and data throughput. This connector adopts the design of 8 high-speed channels, and the total transmission rate can reach 800 Gbps to transmit large amounts of information efficiently and quickly, meeting modern needs for high-density and high-performance connection solutions to become an ideal choice in modern data centers and cloud computing environments.
In the second part, with the rapid development of the aviation industry and the continuous innovation of wireless communication technology, the reliability and efficiency of aircraft communication systems have become key factors for the safety and efficiency of air transportation. As an indispensable part of the aircraft communication system, the performance of the antenna is directly related to the key connection between the aircraft and the ground communication, flight monitoring and satellite positioning systems. Therefore, the design and performance requirements for aircraft antennas are getting higher and higher. This study proposes an L-band radar that can be applied to the front end of the aircraft. The application frequency of this antenna is 1030-1090MHz. It has high gain, good characteristics such as high directivity and low reflection loss to meet the requirements of high precision and stability to improve the safety of aircraft.
In the third part, with the continuous advancement of technology, the safety performance of ground tracking technology will be further improved. The safety of this technology is reflected in the accuracy of data and the identification of potential threats on the ground and in the air, allowing people on the ground to accurately measure the distance, speed and orientation of targets. In order to improve the reliability and accuracy of ground tracking technology, this thesis designs a foldable tracking antenna with high gain and high isolation. It uses a Yagi type antenna to improve directivity and gain values to meet antenna needs in limited space.

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