| 1. |
- De Lauretis, Maria, et al.
(författare)
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On the Decoupling of Integrals in the Surface PEEC Method
- 2022
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Ingår i: Proceedings of the 2022 International Symposium on Electromagnetic Compatibility (EMC Europe 2022). - Danvers : IEEE. - 9781665407885 - 9781665407878 - 9781665407892 ; , s. 355-360
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Konferensbidrag (refereegranskat)abstract
- Electromagnetic problems can be solved by using the integral form of Maxwell equations. The Surface Partial Element Equivalent Circuit (S-PEEC) method is an integral equation-based method that is suitable when high-frequency effects, such as skin and proximity effect, are dominant. However, the computation of interaction quadruple integrals is computationally expensive and numerically unstable due to singularities. In previous work, we proved how to decouple one of the quadruple integrals, and showed the gaining in stability and computational time. In this work, we extend the result to the second integral with the curl of the Green's function. Numerical examples prove the acceleration in terms of computational time achieved with the proposed approach. Future work will focus on integration strategy and further optimization of the proposed algorithm.
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| 2. |
- Kalaran, Hans, et al.
(författare)
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Eigenmodes of a Loaded Reverberation Chamber
- 2022
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Ingår i: IEEE International Symposium on Electromagnetic Compatibility. Volume 2022-September, 2022, Pages 212-215. - : Institute of Electrical and Electronics Engineers Inc.. - 9781665407878 ; , s. 212-215
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Konferensbidrag (refereegranskat)abstract
- The analytical solution for a loaded reverberation chamber has been investigated. In consistence with earlier works, it is shown that adding a dielectric (non-absorbing) into the chamber will reduce the eigenfrequency of the chamber. This can be a step toward lowering usable frequency inside the Reverberation Chamber and representing the modes density similarly to an empty chamber.
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| 3. |
- Karlsson, Kristian, et al.
(författare)
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Electrical Fields in Vehicular Cavities During Reverberation Chamber EMC Immunity Test
- 2022
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Ingår i: IEEE International Symposium on Electromagnetic Compatibility. Volume 2022-September, 2022, Pages 189-194. - : Institute of Electrical and Electronics Engineers Inc.. - 9781665407878 ; , s. 189-194
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Konferensbidrag (refereegranskat)abstract
- In this paper, we elaborate on EMC immunity tests in reverberation chambers of full-sized vehicles as well as these products' corresponding electromagnetic susceptibility. It is described how vehicles have regions or volumes (i.e., cavities), with sometimes installed hardware as well as software, which potentially is susceptible to electromagnetic interference, and how these cavities during test have properties (deterministic to ergodic) implying frequency-dependent properties of the electrical fields. Number of degrees of freedom for the electric fields is used to explain the behaviour of EMC, from deterministic coherent resonances and all the way to ergodic regions.
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| 4. |
- Karlsson, Kristian, et al.
(författare)
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Test Level in Reverberation Chamber EMC Immunity Assessment Based on the Quantile to Average Ratio
- 2022
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Ingår i: IEEE International Symposium on Electromagnetic Compatibility. Volume 2022-September, 2022, Pages 178-182. - : Institute of Electrical and Electronics Engineers Inc.. - 9781665407878 ; , s. 178-182
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Konferensbidrag (refereegranskat)abstract
- As more and more advanced electronics are incorporated into devices and vehicles, there is a need to improve and refine the test methods for performance assessment of electromagnetic compatibility. Traditional standards in reverberation chamber electromagnetic compatibility immunity assessment define the test level according to a calibration based on an average of maximum received electrical field probe readings. In this paper, we propose a converging approach based on the average, in combination with an additional offset to generate a quantile defined test level.
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