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2019 IEEE International Conference on Electron Devices and Solid-State Circuits (EDSSC)最新文献

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Terahertz broadband band-stop filter based on metasurface 基于超表面的太赫兹宽带带阻滤波器
H. Deng, M. Chan, Shaolin Zhou
The metasurface is an ultra-thin two-dimensional array of planar device composed of periodic meta-units to enable multi-functional and extraordinary electromagnetic control, and thus shows great potentials in many scientific and technical applications due to its excellent filtering characteristics when used as filters. For most applications, the filter bandwidth is one of the most important performance metrics. In this paper, we demonstrate a broadband terahertz band-stop filter based on the design principle of metasurface. By superposition of multi-layer metasurfaces and the interactive couplings in-between, the designed filter demonstrates a significantly broadened bandwidth and the stop-band rejection with excellent cut-off in the range of 373-502GHz. The result reveals the mechanism of bandwidth broadening through field distribution in the full-wave analysis by finite element simulation. Further study also reveals absolute polarization independence of the designed metasurface filter, i.e. exactly the same transmission spectra for TE or TM incidence.
超表面是一种由周期性元单元组成的超薄二维平面器件阵列,可实现多功能和非凡的电磁控制,作为滤波器使用时具有优异的滤波特性,在许多科学技术应用中显示出巨大的潜力。对于大多数应用程序,滤波器带宽是最重要的性能指标之一。在本文中,我们展示了一个基于超表面设计原理的宽带太赫兹带阻滤波器。通过多层超表面的叠加和交互耦合,该滤波器在373-502GHz范围内具有明显的宽频带和良好的截止带抑制性能。通过有限元模拟,揭示了全波分析中通过场分布使带宽展宽的机理。进一步的研究还揭示了所设计的超表面滤波器的绝对偏振无关性,即TE或TM入射的透射光谱完全相同。
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引用次数: 2
An Improved Color Attenuation Priori Dehazing Algorithm and Its Hardware Implementation 一种改进的颜色衰减先验去雾算法及其硬件实现
Shijie Qiao, Q. Li, Yuzhuo Wang
An improved color attenuation priori dehazing algorithm is proposed in this paper. The performance of the improved algorithm is tested with MATALAB program. The hardware architecture for the improved algorithm is designed, the RTL codes of the architecture are programed, simulated, and synthesized to Altera’s FPGA. Experiment results show that the improved algorithm is efficient for image dehazing and the hardware architecture designed in this paper is correct.
提出了一种改进的彩色衰减先验去雾算法。用matlab程序对改进算法的性能进行了测试。设计了改进算法的硬件架构,对该架构的RTL代码进行了编程、仿真,并在Altera的FPGA上进行了合成。实验结果表明,改进算法对图像去雾效果良好,所设计的硬件结构是正确的。
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引用次数: 0
A Wide-Band Feedback Amplifier based on A New Operational Current Amplifier in 130nm CMOS 基于新型130nm CMOS运算电流放大器的宽带反馈放大器
Bai Chunfeng, Zhao Heming, Qiao Donghai
Two main topologies of feedback amplifiers are analyzed in detail in this paper. One is based on operational transconductance amplifier, but is limited in bandwidth. The other one is based on operational current amplifier, and can achieve wide bandwidth. In order to implement a wide-band feedback amplifier in a 130 nm CMOS with 1.2 V supply, a novel operational current amplifier with reasonable CMRR and wide output swing is proposed. This feedback amplifier draws 2.1 mA from 1.2 V supply while obtain 160 MHz bandwidth and 20.4 dBm IIP3 at 14-dB gain setting. The CMRR is 79 dB within 100 kHz, and is 20 dB within 2.5 GHz.
本文详细分析了反馈放大器的两种主要拓扑结构。一种是基于运算跨导放大器,但带宽有限。另一种是基于运算电流放大器,可以实现宽带宽。为了在1.2 V供电的130 nm CMOS上实现宽带反馈放大器,提出了一种具有合理CMRR和宽输出摆幅的新型运算电流放大器。该反馈放大器从1.2 V电源吸取2.1 mA,同时在14 db增益设置下获得160 MHz带宽和20.4 dBm IIP3。CMRR在100khz范围内为79db,在2.5 GHz范围内为20db。
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引用次数: 3
Low Power Device Phase Locked Loop with Gm-Boosted Charge Pump and ESD Protection 低功率器件锁相环与gm增压电荷泵和ESD保护
W. Lai, Wei-Te Liu, Yan-Cu Lin, S. Jang
This article presents a low consumption phase locked loop (PLL) with electrostatic discharge (ESD) and use gain-boosted charge pump organization and a divided by 48 pulse swallow dividers. By gain-boosted technique can efficient to reduce the PLL reference spurs. The PLL consume of power is 6mW from 1.8V souring. The phase noise of the PLL is - 86.71 dBc/Hz at 1MHz offset and spurs are -32.64 dB. The PLL fully integrated and processing in UMC 0.18μm and it occupies 698μm×848μm active chipset area.
本文提出了一种低功耗锁相环(PLL),采用静电放电(ESD)和增益增强电荷泵组织,由48个脉冲吞分器分开。增益增强技术可以有效地减小锁相环参考杂散。锁相环在1.8V电压下的功耗为6mW。锁相环在1MHz偏置时相位噪声为- 86.71 dBc/Hz,杂散为-32.64 dB。该锁相环完全集成在联华电子0.18μm芯片中处理,占据698μm×848μm有效芯片组面积。
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引用次数: 1
Capacitor-Less Low Dropout Regulator with High PSR in 0.1–10MHz Range 在0.1-10MHz范围内具有高PSR的无电容低差稳压器
Xitao He, Libo Qian, Da Li, Yinshui Xia
A high power supply rejection (PSR) low dropout (LDO) regulator is presented in the paper for system on chip applications. The small signal models of LDOs are analyzed and a power noise cancellation technique is developed. The PSR performance is improved by introducing a negative capacitor at the gate of power devices. The proposed technique is verified with an LDO that is simulated in a $0.18mu mathrm {m}$ CMOS technology with a power supply of 1. 2V. The entire LDO dissipate $76mu A$ quiescent current. The PSR is better than -30dB for the 0.1MHz-l0MHz frequency range when delivering a current of l0mA.
本文提出了一种适用于片上系统的高电源抑制(PSR)低差(LDO)稳压器。分析了ldo的小信号模型,提出了一种功率噪声消除技术。通过在功率器件栅极处引入负电容,提高了PSR的性能。采用0.18mu mathm {m}$ CMOS技术和电源为1的CMOS技术模拟LDO,验证了所提出的技术。2 v。整个LDO耗散76 μ A静态电流。在0.1 mhz - 10mhz频率范围内,输出电流为10ma时,PSR优于-30dB。
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引用次数: 1
An 8 MHz Boost Converter with Feed-Forward Compensation and Adaptive Dead-Time Control 具有前馈补偿和自适应死区时间控制的8mhz升压变换器
Xufeng Liao, Wenbin Huang, Lianxi Liu
This paper proposes an 8 MHz boost converter with optimized line transient response and adaptive dead time for energy harvest system. The feed-forward compensation technique is proposed to achieve rapid line transient response. A dead-time control circuit is presented to achieve the adaptive dead time, which minimizes the body-diode conduction loss and thus improves the efficiency. The proposed converter is implemented in $0.18,mu mathrm {m}$ standard CMOS process with an active area of $0.80times 0.75 mathrm {m}mathrm {m}^{2}$. According to the simulation results, the line transient response is improved by 86.6%. Less than 1 ns body-diode conduction time has been achieved without bringing in shoot-through current across 10–150 mA load current range. The 1.8 V output voltage is achieved from 0.35–1.5V input voltage, and the peak efficiency is 88.9%.
提出了一种用于能量采集系统的具有优化线路暂态响应和自适应死区时间的8mhz升压变换器。为了实现快速的线路暂态响应,提出了前馈补偿技术。提出了一种死区时间控制电路来实现自适应死区时间,使体二极管的导通损耗最小,从而提高了效率。该转换器采用$0.18,mu mathrm {m}$标准CMOS工艺实现,有效面积为$0.80乘以0.75 mathrm {m}mathrm {m}^{2}$。仿真结果表明,线路暂态响应提高了86.6%。在10 - 150ma负载电流范围内,在不引入穿透电流的情况下,实现了小于1ns的体二极管导通时间。在0.35 ~ 1.5V的输入电压下实现1.8 V的输出电压,峰值效率为88.9%。
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引用次数: 1
A 112Gb/s Low-Noise PAM-4 Linear Optical Receiver in 28nm CMOS 基于28nm CMOS的112Gb/s低噪声PAM-4线性光接收机
Yongjun Shi, Dan Li, Shengwei Gao, Yihua Zhang, Li Geng
A 112Gb/s PAM-4 linear optical receiver with low noise, high linearity in 28nm CMOS is presented. The receiver signal chain consists of a transimpedance amplifier (TIA), a continuous time linear equalizer (CTLE), a variable gain amplifier (VGA), and an output buffer. PMOS CML logic is used based on the device characteristics. The low-noise topology and novel gain control techniques together enable state-of-the-art performance. The receiver achieves 2.72$mu$ Arms input-referred noise current, 71dB $Omega$ transimpedance gain and 37 GHz bandwidth. It is able to provide 18.5dB dynamic range to support maximum input overload current of 1.8mApp. The total harmonica distortion (THD) is below 5% under 660mVpp output swing. This receiver consumes 96.8mW from 1.5V supply.
提出了一种低噪声、高线性度的28nm CMOS 112Gb/s PAM-4线性光接收机。接收机信号链由一个跨阻放大器(TIA)、一个连续时间线性均衡器(CTLE)、一个可变增益放大器(VGA)和一个输出缓冲器组成。PMOS CML逻辑是基于器件特性使用的。低噪声拓扑结构和新颖的增益控制技术共同实现了最先进的性能。接收机的输入参考噪声电流为2.72 $mu$ Arms,跨阻增益为71dB $Omega$,带宽为37 GHz。它能够提供18.5dB动态范围,以支持1.8mApp的最大输入过载电流。口琴总失真(THD)低于5% under 660mVpp output swing. This receiver consumes 96.8mW from 1.5V supply.
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引用次数: 1
Double Vector Attitude Coarse Estimation Method based on Polarization Information of X-ray Pulsar 基于x射线脉冲星偏振信息的双矢量姿态粗估计方法
Lu Wang, Shuang Zhang
This paper proposes a new dual vector attitude coarse alignment method based on polarization information. In this paper, the linear polarization position angle (PPA) is analyzed by using the stability factor, and the optimal linear PPA is selected. On this basis, the initial attitude is estimated by the double vector method. Simulation experiments show that the proposed method is not sensitive to errors. This method can effectively determine the coarse attitude of the spacecraft and provide a better initial attitude angle for other subsequent attitude determination algorithm.
提出了一种基于偏振信息的双矢量姿态粗对准方法。本文利用稳定因子对线偏振位角(PPA)进行了分析,选择了最优的线偏振位角。在此基础上,采用双矢量法估计初始姿态。仿真实验表明,该方法对误差不敏感。该方法可以有效地确定航天器的粗姿态,为后续的姿态确定算法提供较好的初始姿态角。
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引用次数: 0
A Ka-Band Low Noise Amplifier for Phased Array Radar System in 65nm CMOS 65纳米CMOS相控阵雷达系统ka波段低噪声放大器
Mengdi Cao, Luqiang Duan, Guopei Chen, Ruichang Ma, Zhiyuan Chen, B. Chi
An optimized Ka-band low noise amplifier (LNA) for phased array radar system is presented in this paper. Two gain-boosting techniques are quantitatively analyzed and employed on the proposed LNA to achieve high gain and low noise performances. Meanwhile, three switched-capacitor arrays are inserted to prevent the center frequency (35GHz) from shifting with the PVT variations. Implemented in 65nm CMOS, the presented LNA features 26.2dB gain over 7GHz-3dB bandwidth (BW-3dB) while drawing 24.5mA current from one 1V power supply. The noise figure (NF) is lower than 3.4dB at 35GHz. S11 and S22 are below -10dB within the entire operating frequency band (33GHz-37GHz). The input third-order intercept point (IIP3) is higher than -22dBm.
提出了一种用于相控阵雷达系统的优化ka波段低噪声放大器。定量分析了两种增益增强技术,并将其应用于所提出的LNA,以实现高增益和低噪声的性能。同时,为了防止中心频率(35GHz)随PVT变化而漂移,还插入了三个开关电容阵列。该LNA采用65nm CMOS实现,在7GHz-3dB带宽(BW-3dB)上具有26.2dB增益,同时从1V电源获取24.5mA电流。35GHz时噪声系数小于3.4dB。S11和S22在整个工作频段(33GHz-37GHz)内低于-10dB。输入三阶截距点(IIP3)大于-22dBm。
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引用次数: 0
A Background Timing Skew Calibration Technique in Time-Interleaved ADCs 时间交错adc的背景时序偏差校准技术
Zekai Wu, Fule Li, Meng Ni, Yang Ding, Zhihua Wang
This paper presents a background timing skew calibration technique for time-interleaved analog-to-digital converters(ADCs). The timing skew between two adjacent sub- ADCs is detected in the digital domain through slope-based and statistics-based technique. Based on the detection error, the digitally controlled delay line(DCDL) is driven to minimum the timing skew. Using the proposed calibration algorithm in a 14- bit 500MS/s TI ADC model, the MATLAB simulation result shows a convergence time of 346ms under Nyquist frequency input with 1% oTs initial timing mismatch, and the proposed method can effectively reduce hardware consumption in circuit implementation.
提出了一种用于时间交错模数转换器(adc)的背景时序偏差校准技术。通过基于斜率和基于统计的技术,在数字域检测两个相邻子adc之间的时序偏差。基于检测误差,将数字控制延迟线(DCDL)驱动到最小的时序偏差。在14位500MS/s TI ADC模型中使用所提出的校准算法,MATLAB仿真结果表明,在Nyquist频率输入、1% oTs初始时序失配的情况下,所提出的校准算法收敛时间为346ms,可以有效降低电路实现中的硬件消耗。
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引用次数: 0
期刊
2019 IEEE International Conference on Electron Devices and Solid-State Circuits (EDSSC)
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