Multi-frequency Measurements of Material and Floor Penetration Losses

In light of the present and future 5G and 6G multi-band communications, achieving seamless indoor wireless coverage appears to be an important challenge. Within this context, continuous wave measurements were conducted in this work to estimate floor-penetration loss in the FR3 band (7-15 GHz) and the penetration loss of other indoor structures, such as walls and doors, at 25, 77 and 153 GHz. In the FR3 band, through-floor losses varied between 44 and 64 dB for frequencies from 7 GHz to 15 GHz, with an increase of about 18-20 dB for each of the considered cases. Similarly, other losses increase with frequency by 22 dB (glass door) and by 33 dB (indoor partition walls) across the three measured frequency bands.