[Giới thiệu Luận án tiến sĩ]

Tên đề tài: CONCEPTION D’ANTENNE RECONFIGURABLE ET INTÉGRÉE POUR CUBESAT (FR)
[DESIGN OF SMART AND INTEGRATED ANTENNA FOR CUBESAT (EN)]

(Thiết kế ăn-ten tái cấu hình và tích hợp cho vệ tinh CubeSat)
- Chuyên ngành: Điện tử -

Tác giả: Nguyễn Mạnh Thảo

 Tóm tắt: The rapid growth of CubeSats has significantly transformed the satellite industry, enabling cost-effective and versatile missions. Antennas are crucial components in CubeSats, particularly for Telemetry, Tracking, and Control (TTC) applications, ensuring reliable communication with ground stations. Traditional CubeSat antennas often involve risky deployable mechanisms, increasing the complexity and potential for mechanical failure. This thesis addresses these challenges by developing innovative antennas integrated directly into the CubeSat chassis and existing satellite structures, such as solar panels. As a proof of concept, a 3-unit (3U) CubeSat antenna operating in the Very High Frequency (VHF) band is fabricated and evaluated in this study, ensuring adherence to CubeSat dimensional constraints and Poly-Picosatellite Orbital Deployer (P-POD) launch vehicle requirements. Advanced beamforming capabilities through innovative active feeding mechanisms are also explored to enhance communication performance. Characteristic Mode Analysis (CMA) is employed extensively to analyze CubeSat structures, identifying dominant current distributions essential for optimizing antenna performance. CMA is systematically investigated across multiple CubeSat configurations and frequencies, with practical demonstrations conducted using a 3U CubeSat prototype. The antenna prototype is fabricated and rigorously tested in an anechoic chamber, validating its radiation characteristics, impedance matching, polarization, and overall performance. Key contributions include the introduction of antennas embedded directly into CubeSat structures, eliminating risks associated with deployable mechanisms. A structured CMA workflow tailored to CubeSat designs is detailed, alongside a validated wide beamwidth, circularly polarized VHF antenna design for 3U CubeSats. Additionally, this approach is extended to propose a reconfigurable antenna for 12U CubeSats, enhancing operational flexibility. Overall, this thesis significantly advances antenna integration methodologies and electromagnetic analyses, providing robust, reliable, and efficient solutions critical for the success and future growth of CubeSat missions.

=> Nguồn tóm tắt: https://theses.fr/2025COAZ4007

 Bạn đọc có quan tâm vui lòng:
- Tìm đọc tại kệ luận án, biểu ghi tài liệu: https://opac.vnulib.edu.vn/record=b1433895~S1*vie
- Hoặc truy cập xem toàn văn từ xa tại địa chỉ sau: https://ir.vnulib.edu.vn/.../efca39d5-ab2f-47d7-8f3d...

 Mọi thắc mắc cần hỗ trợ về tài khoản truy cập, vui lòng liên hệ thông qua mail: thuvien@uit.edu.vn