4–40 GHz Transmission Measurement of Indoor Building Materials at Normal Incidence

Transmission of common building materials, such as drywall, cinder block, gypsum board, and glass are characterized over the 4-40 GHz range for normal incidence in a compact anechoic chamber. Results indicate that many interior materials only exhibit modest increase in loss compared to UHF (1 to 4 dB), whereas cinder block can increase loss by as much as 20 to 30 dB.