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A 5.8 GHz Integrated CMOS Dedicated Short Range Communication Transceiver for the Korea/Japan Electronic Toll Collection System

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6 Author(s)
Kuduck Kwon ; Samsung Electronics Co. Ltd., Suwon, Republic of Korea ; Jaeyoung Choi ; Jeongki Choi ; Yongseok Hwang
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In this paper, a RF front-end of the 5.8 GHz integrated CMOS dedicated short range communication (DSRC) transceiver for the Korea/Japan electronic toll collection system is presented. The receiver uses low-IF conversion architecture for high sensitivity and low-power consumption while the transmitter uses direct up-conversion architecture for its simple structure and reliability. To solve image problem in the low-IF receiver, 10 MHz IF and 40 MHz IF are chosen for Korean and Japanese DSRC standards, respectively, since they make no image signals exist in image band. A single-quadrature mixer with the proposed transconductor-type quadrature generator in RF signal path is also adopted which has accurate quadrature characteristic in 5.8 GHz frequency. When the RF front-end of the integrated 5.8 GHz DSRC transceiver is implemented using 0.13 μm CMOS technology, the receiver achieves the overall noise figure of less than 5 dB with image rejection ratio of more than 30 dB, and the transmitter carries an output peak power of 10 dBm with the adjacent channel power ratio of -43 dBc. The RF front-end of the 5.8 GHz DSRC transceiver dissipates 45 mA with 1.2 V supply voltage and 142 mA with 1.2/3.3 V dual supply voltage during RXand TX-modes, respectively.

Published in:

IEEE Transactions on Microwave Theory and Techniques  (Volume:58 ,  Issue: 11 )