Full-Wave and Multi-GTD Analysis of the Ice Cloud Imager for MetOp-SG

22 Mar 2017

We report an RF study at 50 GHz of the Ice Cloud Imager, consisting of a parabolic reflector inside a semiclosed sun shield, as obtained with full-wave method of moments (MoM) and the asymptotic high-frequency multi-geometrical theory of diffraction (Multi-GTD) method.

The Multi-GTD results accurately reproduce details of the main beam and sidelobes originating from focusing, but fail to predict other parts of the pattern that are due to a large number of scattering events inside the semi-closed sun shield.

MoM results at the half and double frequency (25 and 100 GHz) show that the parts of the pattern that are not well described by Multi-GTD, but still within the dynamic MoM range, remain at the same overall level as the frequency is varied.

Publication: Proc. EuCAP 2017, 11th European Conference on Antenna and Propagation
Place: Paris, France

Jakob Rosenkrantz de Lasson / Per Heighwood Nielsen / Cecilia Cappellin / David Marote Alvarez / Marc Bergada / Raquel Gonzalez / Peter de Maagt /
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