E-Field Strength Measurements of a 5G Base Station in 28 GHz Band for EMF Exposure Assessment

Authors: Sen Liu, Teruo Onishi, Masao Taki, Miwa Ikuyo, Kazuhiro Tobita, Soichi Watanabe, Yukihisa Suzuki

Year: 2021

Category: Electromagnetic Field Studies

Journal: IEEE USNC- URSI Radio Science Meeting (Joint with AP-S Symposium)

Institution: IEEE USNC-URSI Radio Science Meeting

DOI: 10.23919/USNC-URSI51813.2021.9703567

URL: https://ieeexplore.ieee.org/document/9703567

Abstract

Overview

This paper details the preliminary findings on the electric field (E-field) strength measurement from a fifth-generation (5G) base station operating at 28 GHz.

Findings

  • Three distinct measurement scenarios were assessed.
  • The time-averaged (1 min) total E-field strength in all cases did not exceed 91 dBμV/m, significantly lower than the safety limit of 155.76 dBμV/m (61.4 V/m) in the corresponding band.
  • Instances where E-field strength reached 97.74 dBμV/m during heavy data traffic were noted, yet these values are still within safe limits.

Conclusion

The results demonstrate relatively low E-field levels from the 5G station, far below harmful thresholds, suggesting minimal health risks under current operating conditions. However, continuous monitoring and further comprehensive studies are advocated.

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