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Clock generator and OOK modulator for RFID application

Journal of Zhejiang University-Science A(Applied Physics & Engineering) 2005年第10期6卷 1051-1054页

作者：张利王振华李永明张春王志华陈弘毅 Institute of Microelectronics Tsinghua University Beijing 100084 China Department of Electronic Engineering Tsinghua University Beijing 100084 China

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.

关键词： RFID OOK CMOS Current source delay elements

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A New 2-D Digital Filter Using a Locally Broadcast Scheme and Its Cascade Form

A New 2-D Digital Filter Using a Locally Broadcast Scheme an...

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Electronic Communication Systems--The 2000 IEEE Asia-Pacific Conference on Circuits and Systems

作者： Lan-Da Van Shing Tenqchen Chi-Hong Chang Wu-Shiung Feng Lab 331 Department of Electrical EngineeringNational Taiwan University Also with Chunghwa Telecom Telecommunication Labs. Department of Electronics Engineering Chang Gung University

ISBN: (纸本)0780362535

＜正＞In this paper,we propose a new two-dimensional（2-D） systolic-array digital filter using locally broadcast scheme that is the hybrid of a modified reordering and another systolic *** architecture occupies locally broadcast,lower quantization error and zero latency without sacrificing the number of multipliers as well as delay elements under the accepted critical *** addition,the widely used 2-D cascaded systolic digital filter can be described and reconstructed by similar methodology.

关键词： two-dimensional digital filters systolic arrays cascade networks filtering theory IIR filters FIR filters 2D digital filter local broadcast scheme cascade form systolic array architecture modified reordering quantization error zero latency multipliers delay elements

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