A remote-powered RFID tag with 10Mb/s UWB uplink and −18.5dBm sensitivity UHF downlink in 0.18µm CMOS

Wireless sensing and positioning are new added functions, highly demanded, in future and emerging RFID technology [1]. The data rate of existing passive RFID tags is limited to a few hundreds of kb/s causing large latency. On the other hand, the position accuracy is not better than 70cm [2]. In an advanced design, a 3.4Mb/s data rate has been achieved in proximity operation [3]. Active tags with a narrowband radio link overcome these weaknesses, but, they are battery powered and more expensive.