Microwave power transmission for multi-targeting antenna using time-reversal technology

Abstract

Time-Reversal (TR) technology is used in a Microwave Power Transmission (MPT) system with multiple unknown-position targets. In the TR-MPT system, the Time-Reversal Mirror (TRM) array receives detecting signals emitted from the targets and re-emits the time-reversed one convoluted with high energy electromagnetic waves, and then the electromagnetic wave energies are focused on the targets. Three cases with different target positions are studied. Compared to the energies received by the targets in a conventional MPT system, more energy can be received by the targets in the TR-MPT system. The results show that the TR technology can be used to improve the performance of a multi-target MPT system.