학술논문
Enhanced Simulation-Augmented OTA Technique Applied to Absorbed Power Density Evaluation
Document Type
Conference
Author
Source
2023 Antenna Measurement Techniques Association Symposium (AMTA) Antenna Measurement Techniques Association Symposium (AMTA), 2023. :1-6 Oct, 2023
Subject
Language
ISSN
2474-2740
Abstract
This paper proposes a fast human exposure Absorbed Power Density assessment approach, based on a combination of over-the-air radiative field measurements and full-wave electromagnetic simulations. This so-called augmented OTA technique relies on the computation of an equivalent source or digital twin, which reproduces the radiation properties of the device under test. At short separation distances, the interaction between the human model and the device is however not negligible. A novel solution to model the influence of multiple reflections is introduced, where the inside of the equivalent source box is filled with a perfect electric conductor, thereby creating a reflective digital twin model. Simulation results demonstrate the relevance of this approach for enabling accurate absorbed power density evaluations.