Wireless Power Transfer through Low-E Glass

Delivering power wirelessly and efficiently through low-e glass window is critical for successful deployment of 5G Fixed Wireless Access services. This research reports the effect of low-emissivity glass on wireless power transfer using magnetic-field resonant coupling technique. The hybrid electromagnetic-circuit method is employed to formulate the input-output relation of the power at transmit- and receive-coils, particularly in the presence of low-emissivity (e) glass. The equivalent circuit model of the low-e glass is developed to integrate the structure/material into circuit analysis.