Impact of concrete moisture on radio propagation: Fundamentals and measurements of concrete samples

Ari Asp, Tuomo Hentila, Mikko Valkama, Jussa Pikkuvirta, Arto Hujanen, Ismo Huhtinen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Since 1960's concrete based wall panel systems have become more popular especially in multi-storey residential buildings. The main components of concrete are water, cement and aggregates and especially water-to-cement ratio has a significant influence on the pore structure of the concrete and therefore, on its electrical properties. This paper presents a study where the effect of moisture on the RF attenuation of the outermost concrete sandwich element is examined based on material samples. The frequency range used in the measurements was 7 GHz to 13 GHz, but the results are expandable for other frequencies based on the stable permittivity value. In particular, at higher frequencies, the attenuation of concrete layer increases rapidly and already at lower frequencies of 5th Generation (5G) networks, the wetting of the outermost layer of the concrete element can cause an 6-12 dB additional signal attenuation.

Original languageEnglish
Title of host publicationISWCS 2019
Subtitle of host publication16th International Symposium on Wireless Communication Systems
PublisherVDE Verlag
Pages542-547
ISBN (Electronic)978-1-7281-2527-5
ISBN (Print)978-1-7281-2528-2
DOIs
Publication statusPublished - Aug 2019
MoE publication typeA4 Article in a conference publication
Event16th International Symposium on Wireless Communication Systems, ISWCS 2019 - Oulu, Finland
Duration: 27 Aug 201930 Aug 2019

Publication series

SeriesInternational Symposium on Wireless Communication Systems
Volume16
ISSN2154-0217

Conference

Conference16th International Symposium on Wireless Communication Systems, ISWCS 2019
CountryFinland
CityOulu
Period27/08/1930/08/19

Keywords

  • Outdoor-to-indoor propagation
  • Penetration loss
  • Radiowave propagation
  • RF measurements
  • OtaNano

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    Asp, A., Hentila, T., Valkama, M., Pikkuvirta, J., Hujanen, A., & Huhtinen, I. (2019). Impact of concrete moisture on radio propagation: Fundamentals and measurements of concrete samples. In ISWCS 2019: 16th International Symposium on Wireless Communication Systems (pp. 542-547). [8877182] VDE Verlag. International Symposium on Wireless Communication Systems, Vol.. 16 https://doi.org/10.1109/ISWCS.2019.8877182