• 28 SEP 20
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    Microwave News: 5G Waveforms in Dispute

    From Louis Slesin, editor of Microwave News

    September 25, 2020

    Ken Foster & Niels Kuster Disagree on Averaging Times

    Excerpt:

    Very little has been written in the popular media about the waveforms used in 5G signals. Two outstanding questions are: How fast are the pulses? How powerful are they?

    In 2018, Esra Neufeld and Niels Kuster of the IT’IS Foundation in Zurich issued a warning in a paper in Health Physics, urging that existing exposure standards be revised with shorter averaging times to address potential thermal damage from short and strong pulses:

    “Extreme broadband wireless devices operating above 10 GHz may transmit data in bursts of a few milliseconds to seconds. Even though the time- and area-averaged power density values remain within the acceptable safety limits for continuous exposure, these bursts may lead to short temperature spikes in the skin of exposed people. … [Our] results also show that the peak-to-average ratio of 1,000 tolerated by the ICNIRP guidelines may lead to permanent tissue damage after even short exposures, highlighting the importance of revisiting existing exposure guidelines.”

    Read the full article here

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