Exposure of Insects to RF EMF from 2 to 120 GHz

Abstract

Overview

In this study, various types of insects were exposed to Radio-Frequency (RF) Electromagnetic Fields (EMF) across a broad range of frequencies from 2 GHz to 120 GHz to understand how different frequencies affect power absorption in their bodies. This research comes at a pivotal time as wireless telecommunication frequencies are expected to rise significantly.

Methodology

• A novel Micro-CT imaging technique was utilized to create accurate models of four different insect types.
• These models were then used in finite-difference time-domain electromagnetic simulations to track how absorbed power changed across frequencies.

Findings

All examined insects showed a frequency-dependent absorption of power. An interesting discovery was that all insects consistently absorbed more RF power above 6 GHz compared to below this threshold.

Key Highlights:

• A shift in 10% of the incident power density to frequencies above 6 GHz could enhance the absorbed RF power by between 3% to 370%.
• Smaller insects show a significant peak in absorption at frequencies currently not commonly used in telecommunication but intended for future use.

Conclusion

The study indicates significant implications for the increase in EMF exposure due to next-generation wireless technologies. Continued research and monitoring are strongly recommended to better understand the potential impacts on insect behavior and ecosystem health.