A 90nm CMOS UHF/UWB asymmetric transceiver for RFID readers

Mao, Jia; Sarmiento, Mayra; Zhou, Qin; Chen, Jian; Wang, Peng; Zou, Zhuo; Jönsson, Fredrik; Zheng, Lirong

doi:10.1109/esscirc.2011.6044894

Cited by 8 publications

(2 citation statements)

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“…The transceiver prototype has been fabricated in 90nm CMOS technology with 9 metal layers [23] . It occupies an area of 1800 μm × 900 μm with ESD protected pads.…”

Section: Measurement Resultsmentioning

confidence: 99%

“…In this work, a pulse-wave drain current LC oscillator is proposed as shown in Fig. 9 [23] . By the extra biasing circuit, DC voltage V bias of M1 and M2 is set to be lower than V dd in order to make the devices working in class C. From the simulation, it illustrates that drain current can be more close to a pulse wave by setting lower V bias .…”

Section: Digital Control Oscillatormentioning

confidence: 99%

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A hybrid reader tranceiver design for industrial internet of things

Mao

Zhou

Sarmiento

et al. 2016

Journal of Industrial Information Integration

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“…The transceiver prototype has been fabricated in 90nm CMOS technology with 9 metal layers [23] . It occupies an area of 1800 μm × 900 μm with ESD protected pads.…”

Section: Measurement Resultsmentioning

confidence: 99%

Section: Digital Control Oscillatormentioning

confidence: 99%

A hybrid reader tranceiver design for industrial internet of things

Mao

Zhou

Sarmiento

et al. 2016

Journal of Industrial Information Integration

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Interactive UHF/UWB RFID tag for mass customization

et al. 2016

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Mass customization (MC) under the context of the Internet of Things (IoT) is expected to reform the traditional mass manufacturing. To contribute to MC from information communication and user interaction aspects, this work proposes an Ultra-High Frequency (UHF) RFID tag with an Impulse-Radio Ultra-Wide Band (IR-UWB) transmitter and an inkjet-printed Electrochromic (EC) display. First, compared to the conventional UHF RFID tags, the proposed tag shows the advantage of higher transmission data rate with still low power consumption. The response time in multi-tag accessing scenarios can be reduced to less than 500 ms per 1000 tags by the pipeline of the tag responses in IR-UWB link and the reader acknowledgments in UHF RFID link as well as by reducing the length of empty slots. Second, the tag is integrated with a flexible EC display manufactured by inkjet-printing on the polyimide substrate. It works as an automatically refreshed paper label that offers an intuitive human-to-device interface to improve the efficiency of the offline workers. To conquer the material variations and make use of the long retention time of the printed EC display, its threshold voltage is utilized and a feedback comparator enabling the display driver by the threshold voltage is designed. A System-on-Chip (SoC) is implemented in UMC 0.18 μm CMOS process. According to the experimental results: 1) the IR-UWB transmitter achieves 1.02 V pulse amplitude and 900 ps pulse duration with 18 pJ/pulse energy consumption; 2) the EC display driver automatically refreshes the display when the image fades out, and consumes 1.98 μW per 1 cm 2 display size to retain an image. The UHF/UWB RFID display tag integrated on polyimide substrate is conceptually demonstrated at the end of the paper.

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