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Polynomial chaos expansion as a tool to quantify the performance of the GeReLEO-SMART satellite antenna under uncertainty

: Wilke, R.; Slim, J.; Alshrafi, W.; Heberling, D.


Institute of Electrical and Electronics Engineers -IEEE-, Thailand Section; Electrical Engineering, Electronics Computer, Telecommunications and Information Technology Association Corporation -ECTI-:
International Symposium on Antennas and Propagation 2017 : 30th October-2 November 2017, Phuket, Thailand
Piscataway, NJ: IEEE, 2017
ISBN: 978-1-5386-0465-6
ISBN: 978-1-5386-0466-3
ISBN: 978-1-5386-0464-9
2 S.
International Symposium on Antennas and Propagation (ISAP) <22, 2017, Phuket>
Fraunhofer FHR ()

At Ka-band frequencies, small deviations in the antenna production process result in sub-optimal performance. Classically, Monte-Carlo methods are used to quantify the influence of those tolerances. In this application, Monte-Carlo simulations are not feasible due to the high computational effort and the high number of parameters to be considered. As an alternative, we use polynomial chaos expansion to create a surrogate model using very few full-wave simulations. This model predicts the influence of the production tolerances on the performance of the antenna. Measurements confirm the results of the polynomial chaos expansion method.