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Journal of Microwave Power

Bioeffects Seen

M. de Vecchis, E. Aslan, S. C. Kashyap, J. Y. Wong, J. G. Dunn · 1976

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For continuous waves the sensitivity is | nW/cm* using a differential sensor with two transistors, and for pulsed waves the sensitivity is | pW/cm' using a single transistor.

Plain English Summary

Summary written for general audiences

A simple way to obtain a low-cost high sensitivity detector is to use an active device, especially a transistor oscillator, coupled to an antenna. The detector operates in a frequency-selective mode at low power densities and can switch to a non-selective mode at higher densities by adjusting the antenna coupling.

Exposure Details

Power Density
1 mW/cm2

Exposure Context

This study used 1 mW/cm2 for radio frequency:

Building Biology guidelines are practitioner-based limits from real-world assessments. BioInitiative Report recommendations are based on peer-reviewed science. Check Your Exposure to compare your own measurements.

Where This Falls on the Concern Scale

Study Exposure Level in ContextStudy Exposure Level in ContextThis study: 1 mW/cm2Extreme Concern - 1,000 µW/m²FCC Limit - 10M µW/m²Effects observed in the Extreme Concern range (Building Biology)This level is 1 times the FCC limit
A logarithmic frequency spectrum from 10 Hz to 100 GHz showing where this study's 10 MHz to 300 MHz exposure sits relative to common EMF sources.Where This Frequency Sits on the EMF SpectrumELFVLFLF / MFHF / VHFUHFSHFmm10 Hz100 GHzThis study: 10 MHz to 300 MHzPower lines50/60 HzCell phones~1 GHzWiFi2.4 GHz5G mm28 GHzLogarithmic scale
Cite This Study
M. de Vecchis, E. Aslan, S. C. Kashyap, J. Y. Wong, J. G. Dunn (1976). Journal of Microwave Power.
Show BibTeX
@article{journal_of_microwave_power_g4967,
  author = {M. de Vecchis and E. Aslan and S. C. Kashyap and J. Y. Wong and J. G. Dunn},
  title = {Journal of Microwave Power},
  year = {1976},
  
  
}
No DOI on file for this study.

Quick Questions About This Study

For continuous waves the sensitivity is | nW/cm* using a differential sensor with two transistors.
For pulsed waves the sensitivity is better at about | pW/cm' using a single transistor.
Yes, in frequency-selective mode each tube can have a detector tuned to its exact frequency, allowing discrimination of leakage from individual tubes.