[IEEE 2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO) - Singapore, Singapore (2013.12.9-2013.12.11)] 2013 IEEE MTT-S International Microwave Workshop Series on RF and Wireless Technologies for Biomedical and Healthcare Applications (IMWS-BIO) - Wearable finger ring type antenna made of fabric cloth for BAN use at UHF and ISM bands