@conference {12_ESA_Montejo-GaraiRuiz-CruzRebollar_RecentResultsFiltersWBand, title = {Recent Results on Waveguide Filters at W-Band}, booktitle = {Proc. 2012 ESA Microwave Technology and Techniques Workshop}, year = {2012}, month = {Nov.}, pages = {1-6}, author = {C A Leal-Sevillano and Montejo-Garai, J R and J A Ruiz-Cruz and Rebollar, J M} }