Comparison of Coarseness Error Reduction Measures in the Two-Dimensional TLM Method

In this paper the first time a treatment of field singularities using the new boundaries after Chen et. al. will be discussed and compared with other coarseness error reduction methods. The main advantage of the new method is that it is unnecessary to introduce an additional parameter into the simulation. The computational expenditure is not increased. The efficiency and accuracy of this method is demonstrated by tomparison with analytically exact solutions.