A 90nm CMOS UHF/UWB asymmetric transceiver for RFID readers

Jia Mao, M. David Sarmiento, Qin Zhou, Jian Chen, Peng Wang, Zhuo Zou, Fredrik Jonsson, Li Rong Zheng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations


This paper presents an integrated asymmetric transceiver in 90nm CMOS technology for RFID reader. The proposed reader uses UHF transmitter to power up and inventory the tags. In the reverse link, a non-coherent Ultra-wide Band (UWB) receiver is deployed for data reception with high throughput and ranging capability. The transmitter delivers 160 kb/s ASK modulated data by an integrated modulator and a Digital Controlled Oscillator (DCO) in UHF band with 11% tuning range. The DCO consume 6 mW with 0.12 mm2 area. On the other side, adopting two integration channels, the 3-5 GHz energy detection receiver supports maximum 33 Mb/s data rate both in OOK and PPM modulations. The receiver front-end provides 59 dB voltage gain and 8.5 dB noise figure (NF). Measurement results shows that the receiver achieves an input sensitivity of -79 dBm at 10 Mb/s, with power consumption of 15.5 mW.

Original languageEnglish
Title of host publicationESSCIRC 2011 - Proceedings of the 37th European Solid-State Circuits Conference
Number of pages4
StatePublished - 2011
Externally publishedYes
Event37th European Solid-State Circuits Conference, ESSCIRC 2011 - Helsinki, Finland
Duration: 12 Sep 201116 Sep 2011

Publication series

NameEuropean Solid-State Circuits Conference
ISSN (Print)1930-8833


Conference37th European Solid-State Circuits Conference, ESSCIRC 2011


Dive into the research topics of 'A 90nm CMOS UHF/UWB asymmetric transceiver for RFID readers'. Together they form a unique fingerprint.

Cite this