Title :
A compact RF / analog front-end for microwave RFID transponders
Author :
Gay, Nicolas ; Fischer, Wolf-Joachim
Author_Institution :
Wireless Microsyst. Deptartment, Fraunhofer Inst. for Photonic Microsyst., Dresden, Germany
Abstract :
This paper deals with the design and implementation of a flexible, very compact RF Analog Front-End (AFE) for RFID transponders working in the UHF and microwave frequency ranges. The AFE is part of a complex SOC providing long-range RFID-based communications in combination with on-chip sensors for temperature and humidity as well as other mixed-signal modules like ADCs, DACs and signal conditioning circuitry. The RFID-based AFE is one important piece of a modular platform technology employed in the quick implementation of customized applications. The entire front-end comprises an area of 0.3 sq. mm and delivers over 100 μW of power at a readout distance of 3m with a 3 dBi dipole antenna an a RFID-reader nominally radiating 3W at 868 MHz.
Keywords :
analogue-digital conversion; digital-analogue conversion; dipole antennas; radiofrequency identification; system-on-chip; wireless sensor networks; ADC; DAC; UHF frequency ranges; compact RF/analog front-end; complex SOC; dipole antenna; frequency 868 MHz; front-end comprises; microwave RFID transponders; microwave frequency ranges; mixed-signal modules; on-chip sensors; power 3 W; readout distance; signal conditioning circuitry; Integrated circuits; Monitoring; Radio frequency; Regulators; Temperature sensors; Voltage control;
Conference_Titel :
Semiconductor Conference Dresden (SCD), 2011
Conference_Location :
Dresden
Print_ISBN :
978-1-4577-0431-4
DOI :
10.1109/SCD.2011.6068752
