@conference {02_APS_Ruiz-CruzMontejo-GaraiRebollar_Characterisationofwaveguide, title = {Characterisation of waveguide discontinuities with finite wall conductivity}, booktitle = {Proc. 2002 IEEE Antennas and Propagation Society International Symposium}, volume = {4}, year = {2002}, month = {June}, pages = {428-431}, abstract = {In this paper, a procedure is proposed to evaluate the generalised scattering matrix of waveguide discontinuities with finite wall conductivity. This approach is applied to evaluate the insertion losses in several waveguide structures of Chebyshev bandpass filters. These numerical results are compared with those obtained with other numerical methods and with measurements, validating the proposed procedure.}, keywords = {band-pass filters, Chebyshev filters, electromagnetic wave scattering, finite wall conductivity, generalised scattering matrix, insertion losses, numerical methods, S-matrix theory, waveguide discontinuities, waveguide filters, waveguide theory Chebyshev bandpass filters}, issn = {0-7803-7330-8}, doi = {10.1109/APS.2002.1017013}, url = {http://ieeexplore.ieee.org/iel5/7931/21884/01017013.pdf?tp=\&isnumber=\&arnumber=1017013}, author = {J A Ruiz-Cruz and Montejo-Garai, J R and Rebollar, J M} }