Integrated antenna technologies and wireless power transfer solutions for space and communications systems

This thesis centers on advancing integrated antenna technologies and wireless power transfer (WPT) systems, with a primary emphasis on space applications and additional relevance to communication. The research presents an inventive approach that integrates transparent antennas with photovoltaic (PV) panels, enabling satellites to simultaneously capture solar energy and transmit power wirelessly. This dual-function design optimizes surface utility—an essential factor for small satellites where space and weight constraints are paramount. Transparent antennas are designed using conductive mesh patterns that ensure a high level of optical transparency while maintaining strong electromagnetic performance. By optimizing antenna geometry and adjusting key parameters, such as eliminating horizontal lines to improve transparency, the study achieves a balance between transparency and antenna efficiency. The research also includes a broad investigation into the role of the solar panel’s top metal contacts, which are crucial to the performance of both the solar panel and the antenna. A central focus of this thesis is the exploration of WPT for CubeSats. By assessing power transfer networks between larger satellites and CubeSat swarms, the research demonstrates how coordinated power sharing can extend mission longevity. A key contribution is the design of a highly efficient Class-E amplifier-based inverter, which converts solar-generated power into high-frequency signals for wireless transmission. This efficient system is essential for space applications, where energy resources are limited. The design is carefully optimized to integrate seamlessly with the transparent antenna array, enabling effective wireless energy transfer with minimal losses. The findings have significant implications beyond space, particularly in terrestrial communication systems, where WPT can support the growing demand for energy-efficient solutions. By addressing key challenges in antenna transparency, solar panel integration, and efficient power conversion, this thesis contributes to the advancement of next-generation energy systems for both space-based and terrestrial applications.