Romero García, Vicente; García Raffi, Luis Miguel; Sánchez Pérez, Juan Vicente(American Institute of Physics, 2011)
The properties of sonic crystals (SC) are theoretically investigated in this work by solving the inverse problem k(¿) using the extended plane wave expansion (EPWE). The solution of the resulting eigenvalue problem gives ...
Marini, Stephan; Mattes, Michael; Gimeno Martinez, Benito; Boria Esbert, Vicente Enrique(Institute of Electrical and Electronics Engineers (IEEE), 2011-11)
In this letter, a method for the improved consideration of propagation losses in metallic waveguide structures is presented. The method relies on the perturbation of the boundary conditions on the metallic walls of the ...