Institute of Electronics and Telecommunications of Rennes Proposal for PhD Thesis (Cifre-Defense)
Modeling methods for high frequency simulation with CST
Keywords: Wave propagation at high frequencies, antennas, FDTD, FIT, FFT, radio channel
Skills: Electromagnetism, programming (VBA, C + +), signal processing (FFT), CST MW
The purpose of this thesis is to implement a new algorithm based on the FIT calculations of the CST MW tool, in order to perform simulations on a large scale and high frequency. For example, it will be useful to simulate the radio coverage of Rennes (100 km2) at WIFI frequency (2.45 GHz), which is not currently achievable with FIT. The basic idea of this thesis is that CST MW simulations facto contain all information on the rays either in low frequency or high frequency. Thus, it would be possible to simulate a city like Rennes at 30 MHz (wavelength 10 m) and then converting the result to 3 GHz. Indeed, CST provides information on the three components X, Y and Z of the simulated field at any point. Once the rays are obtained by high-resolution methods (SAGE, SVD-CLEAN, ESPRIT ...), it may be possible to determine the channel impulse response, taking into account the high frequency elementary events (reflection, diffraction, transmission).