Research Article
A Tunable CMOS Continuous-Time Filter Designed for a 5.8 GHz ETC Demodulator
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@INPROCEEDINGS{10.1007/978-3-642-30493-4_53, author={Hang Yu and Lai Jiang and Shengyue Lin and Yan Li and Rongchen Wei and Zhen Ji}, title={A Tunable CMOS Continuous-Time Filter Designed for a 5.8 GHz ETC Demodulator}, proceedings={Wireless Internet. 6th International ICST Conference, WICON 2011, Xi’an, China, October 19-21, 2011, Revised Selected Papers}, proceedings_a={WICON}, year={2012}, month={10}, keywords={ETC receiver Continuous-time filter tunable pass-band operational amplifier}, doi={10.1007/978-3-642-30493-4_53} }- Hang Yu
Lai Jiang
Shengyue Lin
Yan Li
Rongchen Wei
Zhen Ji
Year: 2012
A Tunable CMOS Continuous-Time Filter Designed for a 5.8 GHz ETC Demodulator
WICON
Springer
DOI: 10.1007/978-3-642-30493-4_53
Abstract
5.8 GHz is specified as the operating frequency of the electronic tolling collection (ETC) system in the new national highway network in China. A low power, robust radio frequency receiver is the key design challenge in such a system. A 3 order butterworth low-pass filter with tunable pass-band designed for the ETC receiver was presented in this work. The design is based on a single operational amplifier in order to reduce the overall power consumption. The filter was implemented in standard CMOS 0.18 m technology. Simulation shows that the design achieves a maximum 3-dB bandwidth of 2 MHz with 0 dB insertion loss, while the power consumption is only ~200W.
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