Publication

High-Q Adaptive Matching Network for Remote Powering of UHF RFIDs and Wireless Sensor Systems

Catherine Dehollain, Onur Kazanç, Franco Maloberti
2013
Conference Papers

Abstract

Process and temperature independent RF front-end design is important for remotely powered RFID tags and wireless sensor systems. Run-to-run process variations can impact the remote powering performance and therefore read range of aforementioned systems. We introduce analysis and propose a design methodology for high-Q switched capacitor matching network for remote powering. The method is demonstrated with a differential drive rectifier topology with -14 dBm of input power at 900 MHz UHF band. Simulation results show the improvement on delivered power up to 42% and extension of the read range of the sensor system up to 19% with utilization of the proposed work.

Official source

https://infoscience.epfl.ch/entities/publication/ebb34170-91b8-48bd-a473-1a4a956c48b9

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Catherine Dehollain, Onur Kazanç, Franco Maloberti
2013
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/ebb34170-91b8-48bd-a473-1a4a956c48b9

About this result

Related concepts (27)

Power supply

A power supply is an electrical device that supplies electric power to an electrical load. The main purpose of a power supply is to convert electric current from a source to the correct voltage, current, and frequency to power the load. As a result, power supplies are sometimes referred to as electric power converters. Some power supplies are separate standalone pieces of equipment, while others are built into the load appliances that they power. Examples of the latter include power supplies found in desktop computers and consumer electronics devices.

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Radio-frequency identification (RFID) uses electromagnetic fields to automatically identify and track tags attached to objects. An RFID system consists of a tiny radio transponder, a radio receiver and transmitter. When triggered by an electromagnetic interrogation pulse from a nearby RFID reader device, the tag transmits digital data, usually an identifying inventory number, back to the reader. This number can be used to track inventory goods. Passive tags are powered by energy from the RFID reader's interrogating radio waves.

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