A Novel Statistical Model for the Electromagnetic Coupling to Electronics inside Enclosures

Lin, Shen; Peng, Zhen; Schamiloglu, E.; Drikas, Zachary B.; Antonsen, Thomas M.

doi:10.1109/isemc.2019.8825194

Cited by 4 publications

(1 citation statement)

References 28 publications

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“…A generalization of the PWB-RCM hybrid that can handle arbitrary "bottlenecks" is outlined in Appendix D. The proposed hybrid model is expected to generate statistical mean and fluctuations of the EM fields for systems with moderate cavity losses and large inter-cavity couplings strengths. Expanding the hybrid model to systems with more complex topology and exploring new types of hybrid models by combining RCM with other statistical or deterministic methods has been considered in [69].…”

Section: Vb Weak Inter-cavity Couplingmentioning

confidence: 99%

Efficient Statistical Model for Predicting Electromagnetic Wave Distribution in Coupled Enclosures

Phang

Drikas

et al. 2020

Phys. Rev. Applied

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The Random Coupling Model (RCM) has been successfully applied to predicting the statistics of currents and voltages at ports in complex electromagnetic (EM) enclosures operating in the short wavelength limit [1-4]. Recent studies have extended the RCM to systems of multi-mode aperturecoupled enclosures. However, as the size (as measured in wavelengths) of a coupling aperture grows, the coupling matrix used in the RCM increases as well, and the computation becomes more complex and time consuming. A simple Power Balance Model (PWB) can provide fast predictions for the averaged power density of waves inside electrically-large systems for a wide range of cavity and coupling scenarios. However, the important interference induced fluctuations of the wave field retained in the RCM are absent in PWB. Here we aim to combine the best aspects of each model to create a hybrid treatment and study the EM fields in coupled enclosure systems. The proposed hybrid approach provides both mean and fluctuation information of the EM fields without the full computational complexity of coupled-cavity RCM. We compare the hybrid model predictions with experiments on linear cascades of over-moded cavities. We find good agreement over a set of different loss parameters and for different coupling strengths between cavities. The range of validity and applicability of the hybrid method are tested and discussed.

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Section: Vb Weak Inter-cavity Couplingmentioning

confidence: 99%