TY - JOUR A1 - Quesada Pereira, Fernando Daniel AU - Cañete Rebenaque, David AU - Gómez Tornero, José Luis AU - Losilla López, Fernando AU - Álvarez Melcón , Alejandro T1 - Análisis de estructuras microtira finitas usando una implementación eficiente de la técnica de ecuación integral Y1 - 2003 UR - http://hdl.handle.net/10317/372 AB - An efficient numerical implementation of the Integral Equation technique (IE) has been developed for the analysis of the electrical characteristics of finite microstrip structures. The technique formulates a volume version of the IE for the finite dielectric objects. The numerical implementation combines rooftop basis and testing functions for the conducting metallic areas, and two different choices for the dielectric objects. The first is based on a classical approach, combining pulse basis functions and deltas for testing. The second is a novel full Galerkin approach which employs rooftop functions defined on brick cells inside the dielectrics. The input impedances of two microstrip antennas have been computed with the new technique, showing good agreement with respect measurements. Also the radiation patterns of the antennas have been evaluated, showing again good agreement with respect measurements. The practical value of the approach is that microstrip circuits can be designed minimizing the volume and size of the dielectric substrates. In addition, it is possible to accurately predict the backward radiation of practical microstrip radiators. KW - Teoría de la Señal y las Comunicaciones KW - Técnica de ecuación integral KW - Estructuras microtira de tamaño finito KW - Funciones de Green KW - Radiación trasera de antenas microtira KW - Integral equation technique KW - Microstrip structures of finite size KW - Back microstrip antenna radiation KW - Green's functions LA - spa ER -