A Novel Yagi–Uda Antenna-Based Wireless Power Transmission (WPT) System Using Passive Reflectors

[摘要] This work examines how reflections from various reflective surfaces affect the reception of RF electromagnetic waves and how the latter impacts wireless power transmission. The frequency range used was 469.5 MHz to 773.5 MHz, and three reflective materials of almost 20% variation in the reflection coefficient were tested with a Yagi–Uda antenna at the receiving end. Additionally, the orientation of the antenna was changed in terms of elevation and azimuthal angles. The results were then assessed, and a conclusion was drawn.

[关键词] signal strength;energy harvesting;wireless power transmission;reflectory media;reflection coefficient