Simulation of Polarising and Reflector Gratings for High Power mm WavesCarsten Lechte, Walter Kasparek, Burkhard Plaum, Fritz Leuterer, Martin Schubert, Jörg Stober and Dietmar WagnerEPJ Web Conf., 203 (2019) 04010DOI: https://doi.org/10.1051/epjconf/201920304010