Dyson conical Quad-Spiral Array for VLBI2010 - Rivera Lavado, Alejandro; Llorente Romano, Sergio; Herraiz Martinez, Francisco Javier; Garcia Muñoz, Luis Enrique; Lopez Fernandez ., Jose Antonio; Lopez Perez, J.a.; Tercero-martinez, F.; Segovia Vargas, Daniel (8th European Conference on Antennas and Propagation (EuCAP 2014), 2014)