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Microwave Power Transfer Directivity Control Based on Super-High-Speed Vision Sensing for Fast Moving Target

We implemented a vision sensing-based microwave power transfer experimental system aiming to feed a fast-moving target. In the experiment, retroreflective position markers shot out from the shooting equipment were used as fast-moving targets. A 1000-fps vison sensor successfully detected and tracked the target position marker flying at over 80 km/h and converted its centroid coordinate to the angle observed from the antenna array. A 48-element power-transferring antenna array radiates a narrow microwave beam toward the direction of the flying position marker. Our developed vision-sensing microwave power transfer system demonstrated a high-accuracy microwave beam tracking toward a fast-moving target.