Attenuation of Several Common Building Materials: <i>Millimeter-Wave Frequency Bands 28, 73, and 91 GHz</i>

Future cellular systems will make use of millimeter wave (mmWave) frequency bands. Many users in these bands are located indoors, i.e., inside buildings, homes, and offices. Typical building material attenuations high ranges interest for link budget calculations. In this paper, we report on a collaborative measurement campaign to find the attenuation several typical materials three potential mmWave (28, 73, 91 GHz). Using directional antennas, took multiple measurements at locations using narrow-band wide-band signals, averaged out residual small-scale fading effects. Materials include clear glass, drywall (plasterboard), plywood, acoustic ceiling tile, cinder blocks. Specific range from approximately 0.5 dB/cm tile 28 GHz 19 glass GHz.