| 应用于OFDM-UWB接收机的CMOS信号强度指示器 |
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| 引用本文： | 李丹,李巍,李宁,任俊彦.应用于OFDM-UWB接收机的CMOS信号强度指示器[J].复旦学报(自然科学版),2012,51(1):57-62. |
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| 作者姓名： | 李丹 李巍 李宁 任俊彦 |
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| 作者单位： | 复旦大学专用集成电路与系统国家重点实验室,上海,201203 |
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| 基金项目： | 国家高技术研究发展计划(“863”计划)，国家科技重大专项 |
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| 摘 要： | 给出一种应用于超宽带零中频接收机的宽带RSSI电路.改进了传统的全波整流器,解决了增大其带宽与减小静态输出电流的矛盾,使其带宽提高到300MHz的同时消除了输出静态电流.采用0.13μm CMOS工艺,芯片面积为1.27mm2.测试结果表明RSSI工作带宽为300MHz,在-64～-4dBm输入范围内,检测误差小于±1.5dB,在1.2V电压下消耗电流10.6mA.
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| 关 键 词： | 接收信号强度指示器 限幅放大器 对数放大器 CMOS |
A CMOS RSSI for OFDM-UWB Receiver |
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| LI Dan,LI Wei,LI Ning,REN Jun-yan.A CMOS RSSI for OFDM-UWB Receiver[J].Journal of Fudan University(Natural Science),2012,51(1):57-62. |
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| Authors: | LI Dan LI Wei LI Ning REN Jun-yan |
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| Institution: | (State Key Laboratory of ASIC and System,Fudan University,Shanghai 201203,China) |
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| Abstract: | A wide band received signal strength indicator for UWB zero-IF receiver is presented.The traditional full wave rectifier circuit is improved to increase the bandwidth and meanwhile reduce the quiescent output current,resulting in 300MHz bandwidth without quiescent output current.The chip is implemented with 0.13 μm CMOS technology and occupies an area of 1.27 mm~2.The measured results show that the RSSI achieves bandwidth of 300 MHz.The detection error is within ±1.5 dB over-64—-4 dBm input range.The whole chip consumes about 10.6 mA under 1.2 V supply. |
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| Keywords: | received signal strength indicator(RSSI) limiting amplifier logarithmic amplifier CMOS |
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