Power Normalization for Over the Air Augmented Exposure Assessment
- Resource Type
- Conference
- Authors
- Schaefer, David; Derat, Benoit; Lauer, Andreas; Simon, Winfried; Celik, Mert; Liebig, Thorsten
- Source
- 2024 15th German Microwave Conference (GeMiC) German Microwave Conference (GeMiC), 2024 15th. :81-84 Mar, 2024
- Subject
- Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Wireless networks
Phantoms
Microwave theory and techniques
Microwave circuits
Reflection
Digital twins
Time-domain analysis
power normalization
OTAA
exposure
SAR
IPD
APD
power density
digital twin
fieldsource
numerical simulation
FDTD
- Language
This paper concerns the challenges of power normalization for soft excitation equivalent field sources in reflective environments in the context of exposure assessment. At first, the principle of the over-the-air augmented (OTAA) method and the need for adequate power normalization in exposure assessments is explained. By the example of 1D finite difference time domain (FDTD) simulations and equivalent circuit (EC) considerations it is then discussed how the total power radiated by field sources is affected by reflections from its environment, and how this can be considered in power normalization. Finally, two improvement approaches are addressed.