一些标准矩形波导管的相关数据，如标准型号，主模频率，面尺寸等，方便计算矩形波导的传输。-Some standard rectangular waveguide relevant data, such as the standard model, the main mode frequency, surface dimensions, etc., to facilitate the calculation of rectangular waveguide transmission.

Design and Fabrication of Substrate-Integrated Waveguide (SIW) Filters Using LTCC: Problem Formulation • Introduce a new methodology of designing waveguide inductive strip filters embedded in Low Temperature Co-fired Ceramic (LTCC) &

the rar files includes the notes about the modal expansion and also the orthogality of eigen vectors which is the modes of a waveguide clearly.