| 1. |
- Baghaei Nejad, Majid, et al.
(author)
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A remote-powered RFID tag with 10Mb/s UWB Uplink and -18.5dBm sensitivity UHF downlink in 0.18μm CMOS
- 2009
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In: Digest of technical papers / IEEE International Solid-State Circuits Conference. - 0193-6530. ; , s. 198-199,199a
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Journal article (peer-reviewed)abstract
- In this work, a 10 Mb/s impulse UWB RFID tag in 0.18 mum CMOS is presented. The tag is remotely powered by a UHF signal with a minimum input RF power as low as 14.1 muW. The primary innovation is to employ two different communication links (UWB and UHF) respectively in the uplink and downlink of the tag. This is because the amount of data or instructions from a reader to a tag is small and as a result a conventional UHF-RFID link at 900MHz can be used as the downlink. The UHF signal also provides remote power to the tag. The uplink requires higher data rates and precise positioning capability therefore an l-UWB transmitter is employed.
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| 2. |
- Baghaei-Nejad, Majid, et al.
(author)
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Fully integrated 1.2 pJ/p UWB transmitter with on-chip antenna for wireless identification
- 2010
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In: Ultra-Wideband (ICUWB), 2010 IEEE International Conference on. - : IEEE Press. - 9781424453061 ; , s. 237-240
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Conference paper (peer-reviewed)abstract
- A fully CMOS integrated impulse ultra wideband transmitter with monolithically on-chipantenna (OCA) for wireless identification is presented. Both OOK and BPSK modulation schemes are supported by the module. The chip is fabricated in standard 0.18μm CMOS technology. Direct measurement verifies the chip operation and wireless transmission measurement shows 7cm operation range with 1.2 pJ/pulse consumption at 10MPps, which is a huge improvement compared with related reported work with OCA.
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| 3. |
- Radiom, S., et al.
(author)
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Far-field RF powering system for RFID and implantable devices with monolithically integrated on-chip antenna
- 2010
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In: 2010 IEEE RADIO FREQUENCY INTEGRATED CIRCUITS RFIC SYMPOSIUM. ; , s. 113-116
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Conference paper (peer-reviewed)abstract
- A fully integrated far-field powering system for RFID and implantable devices with monolithically fully integrated on-chip antenna in 0.18ÎŒm CMOS is presented. The chip receives power, clock and data wirelessly through RF signal at all the three ISM bands of 915 MHz, 2.45 GHz and 5.8 GHz. Measurements show a minimum input power of -19.41 dBm at 900MHz for chip operation, corresponding to 15.7 meter of operation range with an off-chip 0dB gain antenna. On the other hand, with its on-chip antenna at 5.8 GHz, the chip can be powered-up up to 7.5 cm distance. This is a huge improvement in terms of operation distance compared with other reported similar works with on-chip antenna as well as the off-chip antennas.
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