| 适于UHF RFID标签芯片的高性能电源恢复电路 |
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| 引用本文： | 冯筱,文光俊,陈健,王耀,刘佳欣.适于UHF RFID标签芯片的高性能电源恢复电路[J].微电子学,2012,42(2):159-163. |
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| 作者姓名： | 冯筱 文光俊 陈健 王耀 刘佳欣 |
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| 作者单位： | 电子科技大学 射频集成电路实验室,成都,611731 |
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| 基金项目： | 广东省重大科技专项基金资助项目 |
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| 摘 要： | 针对ISO 18000-6C标准,提出一种双电压输出稳压电路,有效降低了整体芯片功耗。基于Cadence Spectre设计仿真平台和TSMC 0.18μm CMOS混合信号工艺进行设计并流片。在-20℃～80℃温度范围内,工艺角从ff到ss变化,仿真得到整流电路的能量转换效率(PCE)为29.88%,稳压电路的温度系数为2.4×10-5/℃,电源噪声抑制比(PSRR)为91.4dB@10Hz和34.5dB@10MHz。同时对芯片进行测试,标签可以工作的最低输入射频功率为-9.5dBm,此时整流效率可达23.1%,稳压高低两路电压输出分别稳定在1.8±0.1V和1.0±0.05V,芯片面积约为0.166mm2。
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| 关 键 词： | 电源恢复电路 UHF RFID 标签 整流效率 |
A High Performance Power Recovery Circuit for UHF RFID Tags |
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| FENG Xiao
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WEN Guangjun
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CHEN Jian
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WANG Yao
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LIU Jiaxin.A High Performance Power Recovery Circuit for UHF RFID Tags[J].Microelectronics,2012,42(2):159-163. |
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| Authors: | FENG Xiao WEN Guangjun CHEN Jian WANG Yao LIU Jiaxin |
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| Affiliation: | (RFIC Lab,University of Electronic and Science Technology of China,Chengdu 611731,P.R.China) |
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| Abstract: | A high performance power recovery circuit was designed for ISO 18000-6C standard,which was implemented in TSMC’s 0.18 μm CMOS mixed signal process.Simulation results showed that the circuit had an energy conversion efficiency(PCE) of 29.88%,a temperature coefficient of 2.4×10-5/℃ as temperature changing from-20 ℃ to 80 ℃,and a PSRR of 91.4 dB @ 10 Hz and 34.5 dB @ 10 MHz.Measured results showed that the tag could work at a minimum input RF power of-9.5 dBm,when the rectifying efficiency reached 23.1%,and two regulated output voltages stabilized at 1.8 ± 0.1 V and 1.0 ± 0.05 V,respectively.The circuit occupies a chip area of about 0.166 mm2. |
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| Keywords: | Power recovery circuit UHF RFID Tag Rectifying efficiency |
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