Yong Xin Guo joined the Department of Electrical and Computer Engineering, National University of Singapore, as an Assistant Professor in February 2009 and was promoted to an Associate Professor with tenure in January 2013. He received the Ph.D. degree from City University of Hong Kong in electronic engineering in 2001. Now he is also the laboratory supervisor for the MMIC modeling and packaging laboratory of the Department of Electrical and Computer Engineering. From September 2001 to January 2009, he was with the Institute for Infocomm Research, Singapore, as a Research Scientist. He has authored or co-authored 120 international journal papers and 124 international conference papers. Thus far, his publications have been cited by others more than 1040 times (source: Scopus). He holds one Chinese Patent and one U.S. patent. His current research interests include microstrip antennas for wireless communications, implantable/wearable antennas and on-body/in-body channel modeling for medical applications, wireless power and RF energy harvesting, low-temperature co-fired ceramics-based system-on-package technology, microwave circuits, and MMIC modeling and design. Dr Guo is the General Chair for IEEE MTT-S International Microwave Workshop Series 2013 on “RF and Wireless Technologies for biomedical and Healthcare Applications" (IMWS2013-Bio) in Singapore and served as a Technical Program Committee (TPC) co-chair for IEEE International Symposium on Radio Frequency Integration Technology (RFIT2009). He has been a TPC member and session chair for numerous conferences and workshops. He has also been in the Editorial Boards of the International Journal of RF and Microwave Computer-Aided Engineering, and International Journal of Microwave Science and Technology. He was a recipient of the Young Investigator Award 2009, National University of Singapore.