Gustavo Guarin was born in Pensilvania, Colombia, in 1981. From 1998 to 2004 he studied electronics engineering at the Universidad Nacional de Colombia. He received an MS degree in Information Technologies from the University of applied science in Mannheim, Germany. He is currently pursuing his PhD in Electric Engineering at the University of Erlangen-Nuremberg. He works at the Institute for Electronic Engineering with Prof. Dr.-Ing. Dr.-Ing. habil. Robert Weigel and with Prof. Dr.-Ing. Georg Fischer. The focus of his research is on Ultra-Wideband Microwave Sensors for spectroscopy applications in biomedicine.