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CLC number: TN432

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Received: 2004-12-02

Revision Accepted: 2005-05-10

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Journal of Zhejiang University SCIENCE A 2005 Vol.6 No.10 P.1051~1054

http://doi.org/10.1631/jzus.2005.A1051


Clock generator and OOK modulator for RFID application


Author(s):  ZHANG Li, WANG Zhen-hua, LI Yong-ming, ZHANG Chun, WANG Zhi-hua, CHEN Hong-yi

Affiliation(s):  Institute of Microelectronics, Tsinghua University, Beijing 100084, China; more

Corresponding email(s):   zhangl01@mails.tsinghua.edu.cn

Key Words:  RFID, OOK, CMOS, Current source, Delay elements


ZHANG Li, WANG Zhen-hua, LI Yong-ming, ZHANG Chun, WANG Zhi-hua, CHEN Hong-yi. Clock generator and OOK modulator for RFID application[J]. Journal of Zhejiang University Science A, 2005, 6(10): 1051~1054.

@article{title="Clock generator and OOK modulator for RFID application",
author="ZHANG Li, WANG Zhen-hua, LI Yong-ming, ZHANG Chun, WANG Zhi-hua, CHEN Hong-yi",
journal="Journal of Zhejiang University Science A",
volume="6",
number="10",
pages="1051~1054",
year="2005",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.2005.A1051"
}

%0 Journal Article
%T Clock generator and OOK modulator for RFID application
%A ZHANG Li
%A WANG Zhen-hua
%A LI Yong-ming
%A ZHANG Chun
%A WANG Zhi-hua
%A CHEN Hong-yi
%J Journal of Zhejiang University SCIENCE A
%V 6
%N 10
%P 1051~1054
%@ 1673-565X
%D 2005
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.2005.A1051

TY - JOUR
T1 - Clock generator and OOK modulator for RFID application
A1 - ZHANG Li
A1 - WANG Zhen-hua
A1 - LI Yong-ming
A1 - ZHANG Chun
A1 - WANG Zhi-hua
A1 - CHEN Hong-yi
J0 - Journal of Zhejiang University Science A
VL - 6
IS - 10
SP - 1051
EP - 1054
%@ 1673-565X
Y1 - 2005
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.2005.A1051


Abstract: 
The clock generator and OOK modulator for RFID (Radio Frequency Identification) presented in this paper consist of a current source and delay elements. The simple constant-gm structure is adopted in the current source design and the current consumption of the current source is only about 2 μA. The delay elements, the clock generator and OOK modulator are introduced in detail in the paper. The designed circuits are fabricated by 0.6 μm CMOS process. The area of the core circuit is only about 400 μm×80 μm. The delay time of all three samples is in the range of 9 μs to 21 μs when the supply voltage varies from 2 V to 4 V. As the measured results satisfy the system requirements, these circuit structures are suitable for RFID application.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

[1] Kaiser, U., Steinhagen, W., 1995. A low-power transponder IC for high-performance identification systems. IEEE J. Solid-State Circuits, 30(3):306-310.

[2] Karthaus, U., Fischer, M., 2003. Fully integrated passive UHF RFID transponder IC with 16.7 μW minimum RF input power. IEEE J. Solid-State Circuits, 38(10):1602-1608.

[3] Liu, J.H., Yang, K., Zhang, C., Wang, Z.H., 2003. A Transponder IC for Wireless Auto Identification System. 5th International Conference on ASIC Proceedings. Beijing, China, 2:1114-1116.

[4] Usami, M., 2004. An Ultra Small RFID Chip: U-chip. Proceedings of 2004 IEEE Asia-Pacific Conference on Advanced System Integrated Circuits. Fukuoka, Japan, p.2-5.

[5] Vittoz, E., Fellrath, J., 1977. CMOS analog circuits based on weak inversion operation. IEEE J. Solid-State Circuits, 3(12):224-231.

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