[IEEE 2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting (ANTEM/URSI 2009) - Banff, AB, Canada (2009.02.15-2009.02.18)] 2009 13th International Symposium on Antenna Technology and Applied Electromagnetics and the Canadian Radio Science Meeting - Input impedance calculation of vertical wire antennas above lossy ground using matrix pencil method