A double-blind exposure system is being developed for two research projects investigating the health effects of 5G exposure. The first project, part of the NextGEM initiative, examines potential impacts on human red blood cells in the millimeter-wave range, while the second, under the 5GINC project, focuses on electrohypersensitivity.

The exposure sessions will occur in a controlled environment designed to minimize external influences (temperature, humidity, and EMF levels). The exposure system is configured to generate a modulated OFDM 5G signal at 26,5 GHz. The modulated signal is realized using a software defined radio (SDR) unit or employing a vector signal generator at an intermediate frequency (IF). The IF signal is moved to the FR2 band, employing a custom designed up-converter and filtered for out of band unwanted signals. The upconverted signal will be amplified using a linear amplification stage. A controllable switch will be placed to allow selection between the two transmitting antennas located just a few centimeters from the left and the right forearms (local exposure). 

The poster informs on the design of the exposure system and simulations of the exposed area.