TY - JOUR A1 - Lozano Guerrero, Antonio José AU - Monzó Cabrera, Juan AU - Clemente Fernández, Francisco Javier AU - Fayos Fernández, José AU - Pedreño Molina, Juan Luis AU - Díaz Morcillo, Alejandro Benedicto T1 - Electromagnetic equivalent models for printed circuit boards inside a metallic enclosure Using a coaxial-to-waveguide transition calibration Y1 - 2012 SN - 0018-9375 UR - http://hdl.handle.net/10317/3150 AB - Equivalent models of printed circuit boards are useful to simplify electromagnetic problems by reducing the computational costs of numerical simulations. In this paper, a new procedure for obtaining a simple equivalent model of printed circuit boards inside metallic enclosures is presented. The equivalent model is obtained in two steps: first we precisely characterize the coaxial to waveguide transitions used during measurements by means of an inverse procedure and then during a second inverse procedure, we carry out simulations by concatenating these transitions and the equivalent model and comparing to measurements. The optimized parameters for the equivalent model are: thickness, dielectric constant and the electric conductivity. Results for a printed circuit board in three scenarios have been obtained by using a sweep and two different optimization techniques. Benefits and drawbacks of the model are discussed. Results indicate that this procedure produces very precise characterization of the equivalent model of PCBs depending on the position and orientation of this device within the enclosure. KW - Calibration KW - Cascade systems KW - Modeling KW - Waveguide transitions KW - Shielding LA - eng PB - IEE ER -