A Programmable Gain Amplifier for Load Demodulation Channel in an NFC Reader Chip

Martins, Tarciso A.; Saldana, Julio; Noije, Wilhelmus Van

doi:10.1109/sbcci.2018.8533230

Cited by 3 publications

(1 citation statement)

References 7 publications

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“…The load modulation generates a current variation proportional to the load applied to the tag's coil giving rise to its own small magnetic field which will oppose the reader's field and therefore the reader coil can detect data with a small variation in current. This signal encoded as tiny variation in the magnetic field strength represents the tag's identification (ID) [24]. The reader can then recover this signal by monitoring the change in current through the reader coil.…”

Section: Antenna Characterizationmentioning

confidence: 99%

Hybrid Integration of Screen-Printed RFID Tags and Rigid Microchip on Paper

Chakraborty

Nikbakhtnasrabadi

Dahiya

2022

IEEE Flex. Electron.

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Hybrid or heterogeneous integration of silicon technologies and printed electronics is a promising approach for high-performance flexible electronics. It is essentially the integration of rigid microchips with the printed circuit on a flexible substrate. However, microchips with no-lead and millimeter-size pitch introduce practical challenges in terms of precise electrical bonding onto the printed pattern. The differences in mechanical and thermal requirements also make it challenging to use conventional bonding and interconnect technology to robustly connect the microchips on flexible substrates. The focus of this work is to present these challenges with respect to different substrateadhesive combinations and to provide a facile technique for integrating near-field communication (NFC) microchips on different flexible substrates. Following the successful integration, the smart tags were characterized to demonstrate reliable performance in the NFC reading range. While presenting a hybrid integration for the smart tag, this work also shows a potential solution for several other applications of flexible electronics where high performance cannot be achieved by printed electronics alone.

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Section: Antenna Characterizationmentioning

confidence: 99%