Optimization of Frequency Notched UWB Monopole Antennas by means of Genetic Algorithms with Multipurpose Admittance Matrix Analysis Approach - GIL GIL, JOSE MARIA; RUBIA HERNANDEZ, VALENTIN DE LA; Zapata Ferrer, Juan (Proc. Of The 2008 Usnc/Ursi National Radio Science Meeting, 2008)