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Rapid and accurate broadband absorption cross-section measurement of human bodies in a reverberation chamber

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JournalMeasurement Science and Technology
DatePublished - 14 May 2015
Issue number6
Volume26
Number of pages9
Original languageEnglish

Abstract

A measurement methodology for polarization and angle of incidence averaged electromagnetic absorption cross-section using a reverberation chamber is presented. The method is optimized for simultaneous rapid and accurate determination of average absorption cross-section over the frequency range 1–15 GHz, making it suitable for use in human absorption and exposure studies. The typical measurement time of the subject is about 8 min with a corresponding statistical uncertainty of about 3% in the measured absorption cross-section. The method is validated by comparing measurements on a spherical phantom with Mie series calculations. The efficacy of the method is demonstrated with measurements of the posture dependence of the absorption cross-section of a human subject and an investigation of the effects of clothing on the measured absorption which are important considerations for the practical design of experiments for studies on human subjects.

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© 2015 IOP Publishing. This is an author produced version of a paper published in Measurement Science and Technology. Uploaded in accordance with the publisher's self-archiving policy.

    Research areas

  • ABSORPTION CROSS-SECTION, reverberation chamber, specific absorption rate

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