Simulation Advice - Katerina Galitskaya
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Katerina is a Senior Antenna Engineer at Radientum, an antenna design and consulting company in Tampere, Finland. She began her career in mm-wave antenna array design in 2014. As a Senior Engineer, she designs antennas for IoT, cellular, and mm-wave applications. Since 2022 the focus of her work is on sub-6GHz base station antenna design.  Katerina is 2022 Simulia Champion, technical blog writer and EM-simulation expert who posts examples here about various simulations so others can learn about various techniques.

Hybrid Solver Approach in Large Scale EM-simulations

February 1, 2023

It is often more efficient to divide large-scale EM simulations into different domains and solve each domain using the appropriate method, rather than trying to solve the entire problem with a single EM simulation method. In this example, a GPS antenna was simulated in Time Domain Solver, while the aircraft in Integral Equation Solver. The two were combined by Hybrid solver, resulting in manageable simulation time and memory consumption. In comparison, the brute force method (one solver for the whole model) would require more than a 20x20 meter boundary box, with billions mesh-cells at 1.575 MHz frequency.

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