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An Inkjet-Printed Solar-Powered Wireless Beacon on Paper for Identification and Wireless Power Transmission Applications
2012 / IEEE
This item was taken from the IEEE Periodical ' An Inkjet-Printed Solar-Powered Wireless Beacon on Paper for Identification and Wireless Power Transmission Applications ' This paper demonstrates the design of an 800-MHz solar-powered active wireless beacon composed of an antenna and an integrated oscillator on a low-cost paper substrate. Inkjet printing is used to fabricate the conductive circuit traces and the folded slot antenna, while the oscillator circuit is designed using off-the-shelf components mounted on the paper substrate. Flexible, low-cost, amorphous silicon (a-Si) solar cells are placed on top of the slot ground and provide autonomous operation of the active circuit eliminating the use of a battery. A prototype is built and characterized in terms of phase noise, radiation patterns, and the effect of solar irradiance. Such low-cost flexible circuits can find significant applications as beacon generator circuits for real-time identification and position purposes, wearable biomonitoring as well as solar-to-wireless power transfer topologies. The measured phase noise is -116 dBc/Hz at 1-MHz offset, while drain current is 4 mA and supply voltage is 1.8 V.
Inkjet-printed Solar-powered Wireless Beacon
Wireless Power Transmission Applications
Solar-powered Active Wireless Beacon
Low-cost Paper Substrate
Conductive Circuit Traces
Folded Slot Antenna
Amorphous Silicon Solar Cells
Low-cost Flexible Circuits
Beacon Generator Circuits
Solar-to-wireless Power Transfer Topology
Frequency 800 Mhz
Current 4 Ma
Voltage 1.8 V
Wireless Energy Transfer
Ink Jet Printing
Antenna Radiation Patterns
Fields, Waves And Electromagnetics