Dielectric Properties of Common Building Materials for Ultrawideband Propagation Studies [Measurements Corner]

In this issue's "Measurements Corner" column, the authors present a survey of 20 common building materials' complex permittivity across a frequency band from 0.2 to 67 GHz. In the measurement campaign, two probes for low- and high frequency bands with an overlapped bandwidth were used, enabling data validation. After the measurement, the permittivity data were fitted with the Cole -Cole and Debye models, which further extended the usefulness of the database to time -domain modeling and analysis. The survey complements the existing database of building materials that can be found in the public domain. It could be useful to applications such as 5G -network planning and optimization.