Multifrequency and Multifunction Metamaterial-loaded Printed Antennas. In: Passive Microwave Components and Antennas - Herraiz Martinez, Francisco Javier; Segovia Vargas, Daniel; Ugarte Muñoz, Eduardo; Garcia Muñoz, Luis Enrique; Gonzalez Posadas, Vicente (Passive Microwave Components and Antennas, 2010)