Innovative rectenna design for space solar power systems

Abstract

International audienc

Towards net zero: A technological review on the potential of space-based solar power and wireless power transmission

“…The size of the satellite aerial and Earth's rectenna are connected due to diffraction physics. Tests have demonstrated that the concept is theoretically feasible [98] , [99] , [100] , [101] , [102] . Transforming electricity into a form suitable for feeding the grid requires, grid operability techniques such as power conditioning and reactive power control.…”

Europe and the Future for WPT : European Contributions to Wireless Power Transfer Technology

“…The activities on receiving antennas for long-range WPT have been focused on the study and definition of innovative rectenna arrays for SBSP systems to be used in the ground station. Starting from the key observation that the DC currents at the output of the rectifying circuitry used for each individual element or cluster of elements have no phase term and consequently their coherent sum is not needed, the position of the elements have been properly optimized in order to avoid super-positions and shadowing effects that would reduce the end-to-end WPT efficiency [37]. Moreover, because a portion of the microwave power arriving on the rectenna array is unavoidably backscattered, the DoFs of the element positions have been defined such that the re-radiated field is focused towards a mirror which can re-direct the power towards the rectenna array [37].…”

An efficient small size electromagnetic energy harvesting sensor for low‐DC‐power applications

“…Several rectennas have been presented [3–23]. Most of them have the RF‐to‐DC efficiency improvement as a constraint in their design.…”