Yuichi Nakagawa Masahiro Muraguchi Hideki Kawamura Kyoji Ohashi Kei Sakaguchi Kiyomichi Araki Novel Multi-Stage Transmultiplexing Digital Down Converter for Implementation of RFID (ISO18000-3 MODE 2) Reader/Writer. 2300-2304 2007 conf/vtc/2007s VTC Spring http://dx.doi.org/10.1109/VETECS.2007.475 db/conf/vtc/vtc2007s.html#NakagawaMKOSA07