@inproceedings{inproceedings1a9f0621, title = {Modal analysis of quasi guided waveguides by the finite element method with the spatial transformations}, author = {Passaro, Angelo and Franco, Marcos Antonio Ruggieri and Machado, J. M. and Cardoso, José Roberto}, year = {1999}, publisher = {SBMO}, booktitle = {IMOC 99 SBMO/IEE MTT-S and Leos International Microwave and Optoelectronics Conference} }