Electromagnetic Field Simulation

In addition to the practical execution of EMC testing, we are also able to perform electromagnetic (EM) field simulations. This allows us to quickly and cost-effectively evaluate different design variants and modifications for electromagnetic effects in the early design phase. We are also able to propose changes and improvements to our customers without the need for real prototypes.

Theoretical background, many years of experience, a daily routine in performing EMC measurements and tests on complex systems enable us to make plausibility assessments and cross-validations of our simulation results.

• Reduction of development costs

• Speed-up of innovative developments

• Risk assessment: identify structural loads early on

• Significant time savings

• Theoretical and numerical analyses of the coupling effects, analysis and simulation of the protection measure, design support and reviews

• Focus applications include HIRF, lightning effects, NEMP and antennas

Numerical simulations concerning the effects of HIRF can be employed in all stages of the aircraft design process. In the early stages it can be used to estimate the levels of the internal electromagnetic environment. Later it can be used to evaluate the impact of design modifications and finally to complement measurement campaigns to achieve HIRF certification. For the last case, EM simulation is employed to investigate the influence of aircraft illumination at incident angles that are not covered by ground testing and to evaluate differences between a ground-level measurement setup and the flight, start and landing scenarios.

Characterisation of antennas over the intended frequency range including the determination of the key parameters such as beamwidth, radiation pattern and sidelobes, antenna factor and antenna gain.

In order to define the proper lightning requirements, EMCC can perform a basic simulation of the aircraft using CAD drawings and other information. Through this we can estimate the lightning current distribution in the aircraft structures and determine the estimated levels of transients appearing at the interfaces of the electronic systems already in the early stages of the design phase, after modifications or as a part of the formal aircraft certification process.