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一种用于北斗导航接收机的全集成差分LNA 被引量:1
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作者 郑瑞沣 陈志铭 刘自成 《微电子学》 CAS CSCD 北大核心 2016年第1期22-24,28,共4页
基于SMIC 180nm CMOS工艺,设计了一款用于北斗导航接收机射频前端的低噪声放大器。在该低噪声放大器中,所有电感均为片上实现,提高了集成度;采用差分结构,提升了共模噪声抑制能力。LNA的输入和输出均为50Ω标准阻抗匹配。测试结果表明,... 基于SMIC 180nm CMOS工艺,设计了一款用于北斗导航接收机射频前端的低噪声放大器。在该低噪声放大器中,所有电感均为片上实现,提高了集成度;采用差分结构,提升了共模噪声抑制能力。LNA的输入和输出均为50Ω标准阻抗匹配。测试结果表明,当频率为1.27GHz时,该LNA的功率增益为15dB,噪声系数(NF)为2.3dB,1dB压缩点(P1dB)为-6dBm。差分电路单路功耗为25mW,芯片面积为1.2mm2。 展开更多
关键词 低噪声放大器 CMOS 片上电感 差分结构 北斗导航接收机
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Design of systolic B^N circuits in Galois fields based on quaternary logic
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作者 吴海霞 屈晓楠 +2 位作者 何易瀚 郑瑞沣 仲顺安 《Journal of Beijing Institute of Technology》 EI CAS 2014年第1期58-62,共5页
The BN operation is known as an efficient basic operation in Galois fields GF (2k), and various algorithms and implementations using binary logic signals have already been proposed. In or- der to reduce the circuit ... The BN operation is known as an efficient basic operation in Galois fields GF (2k), and various algorithms and implementations using binary logic signals have already been proposed. In or- der to reduce the circuit complexity and long latency of BN operations, a novel algorithm and its sys- tolic architecture are proposed based on multiple-value logic (MVL). In the very large scale integra- tion (VLSI) realization, a kind of multiple-valued current-mode (MVCM) circuit structure is presen- ted and in which the combination of dynamic source-coupled logic (SCL) and different-pair circuits (DPCs) is employed to improve the switching speed and reduce the power dissipation. The perform- ance is evaluated by HSPICE simulation with 0.18 μm CMOS technology. The transistor numbers and the delay are superior to corresponding binary CMOS implementation. The combination of MVCM cir- cuits and relevant algorithms based on MVL seems to be potential solution for high performance a- rithmetic operationsin Galois fields GF(2k). 展开更多
关键词 multiple-valued logic BN operation Galois fields
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