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A novel ultra high speed and low power phase detector using carbon nanotube field effect transistors

机译：使用碳纳米管场效应晶体管的新型超高速低功率鉴相器

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摘要

As the scaling of conventional silicon transistors moves towards its limiting value, designers become interested to exploit novel nanotechnologies. A carbon nanotube field effect transistor (CNFET) is a potential alternative device that avoids most of the physical limitations. In this paper, a high speed, low power, high precision and extensive range CNFET based phase detector (PD) is presented. The sequential circuits and the feedback path are not used in the proposed PD to obtain the best speed. In addition, by employing a new method, the dead zone and missing edge problems are completely solved in the proposed PD without any need to apply extra delay cells. Therefore, the delay time mismatch is omitted in the proposed circuit. Simulation results using HSPICE based on the CNFET model show that the proposed PD consumes only 24.5 μw power and is much faster than the ones proposed in the previous works.
机译：随着常规硅晶体管的规模朝着其极限值发展，设计人员变得对开发新颖的纳米技术感兴趣。碳纳米管场效应晶体管（CNFET）是避免大多数物理限制的潜在替代器件。本文提出了一种基于CNFET的高速，低功耗，高精度和宽范围的相位检测器（PD）。所建议的PD中未使用顺序电路和反馈路径来获得最佳速度。另外，通过采用新方法，在所提出的PD中完全解决了死区和丢失边缘的问题，而无需应用额外的延迟单元。因此，在所提出的电路中省略了延迟时间失配。使用基于CNFET模型的HSPICE进行的仿真结果表明，所提出的PD仅消耗24.5μw的功率，并且比以前的工作中提出的功率要快得多。

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