Direction Finding Rectenna Array Based on Amplitude Comparison Method

In this paper, we propose a direction finding rectenna array system based on the amplitude comparison method. Compared to traditional methods, the proposed system eliminates the requirement for intricate down-conversion and signal processing. Furthermore, it enables the direct acquisition of the amplitude information of incoming signals, simplifying the process and enhancing efficiency. The overall direction finding error based on the proposed method is less than 5°, while effectively reducing system complexity and cost. Experimental results confirm the feasibility and performance of the proposed method. The system could find applications in navigation systems, wireless communications, radar systems, etc.