Study type: Medical/biological study (experimental study)

Insensitivity of cardiovascular function to low power cm-/mm-microwaves med./bio.

Published in: Int J Environ Health Res 2005; 15 (3): 207-215

Aim of study (acc. to author)

To study whether a 15 min exposure to higher level energy microwaves of frequencies varying from 5.8 to 110 GHz influences cardiovascular function.

Background/further details

A previous study (see publication 11424) failed to disclose an effect of short (15 min) exposure to low level energy microwaves (0.003 mW/cm²) emitted by a commercially available automobile radar system (77 GHz) for adaptive cruise control on cardiovascular function.



Exposure Parameters
Exposure 1: 5.8–110 GHz
Exposure duration: 15 min

Exposure 1

Main characteristics
Frequency 5.8–110 GHz
  • unspecified
  • unspecified
Exposure duration 15 min
Modulation type cf. additional info
Additional info

The microwave signal consisted of these 6 frequencies: 5.8 GHz, 12 GHz, 24 GHz, 60 GHz, 77 GHz and 110 GHz; each frequency was active for 5 ms and the entire sequence was repeated every 35 ms

Exposure setup
Exposure source
Sham exposure A sham exposure was conducted.
Measurand Value Type Method Mass Remarks
power density 59.7 µW/cm² unspecified unspecified - -

Reference articles

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Investigated organ system:
Time of investigation:
  • before exposure
  • during exposure
  • after exposure

Main outcome of study (acc. to author)

While significant effects on the measured parameters were revealed depending on time ("calming" effect), no significant difference was found between exposure and sham exposure. The present investigation rules out physiologically relevant effects of moderate energy microwaves varying from 5.8 to 110 GHz on cardiovascular function.

Study character:

Study funded by

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