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2017 International Conference on Nextgen Electronic Technologies: Silicon to Software (ICNETS2)最新文献

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Miniaturized dual band MIMO antennas for wireless application 用于无线应用的小型化双频MIMO天线
P. Das
The objective of this paper is to design a miniaturized and multiband MIMO antenna using slotting technique which can be used for many devices like cell phones, microwave radio relay. The MIMO antenna module consists of four micro strip antennas which are arranged in two MIMO antenna pairs. Reduction in size, multi-broadband, moderation in gain and good efficiency is obtained. The main aim is to reduce mutual coupling while optimizing the antenna size. The present work would be aimed at designing an antenna which is used mainly for wireless applications.
本文的目标是设计一种小型化的多波段MIMO天线,该天线采用开槽技术,可用于手机、微波无线电中继等多种设备。MIMO天线模块由四个微带天线组成,这些微带天线排列在两个MIMO天线对中。具有体积小、多宽带、增益适中、效率高等优点。其主要目的是在优化天线尺寸的同时减少相互耦合。目前的工作将旨在设计一种主要用于无线应用的天线。
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引用次数: 0
FPGA based hand-held high voltage testing equipment 基于FPGA的手持式高压测试设备
S. Raajkumar, S. Muthulakshmi, A. Venkatesh
Electrical appliances that operate at high voltages require customized tests based on the appliance rating and insulation range to ensure the safety and wastage of current. This system will focus on a custom Virtual Instrumentation technique for testing key parameters and validating the machine based on its specifications/name plate details. Hardware section of this instrument will operate in tandem with a user configured Field Programmable Gate Array (FPGA) and provide documented results from LabVIEW about the health of the device under test. The Virtual Instrument used in this system is National Instrument Single-Board RIO (NI sbRIO) which provides real time limelight on unique feature of an application. This system focus on efficient usage of High Voltage for the specified applications, improves the time and reduces the complexity of system using the latest advancement in Virtual Instrumentation.
在高压下工作的电器需要根据电器的额定值和绝缘范围进行定制测试,以确保安全性和电流损耗。该系统将侧重于定制虚拟仪器技术,用于测试关键参数并根据其规格/铭牌细节验证机器。该仪器的硬件部分将与用户配置的现场可编程门阵列(FPGA)串联工作,并提供来自LabVIEW的关于被测设备健康状况的文档结果。本系统采用的虚拟仪器是国家仪器单板RIO (NI sbRIO),可以实时显示应用程序的独特功能。该系统的重点是有效地利用高电压的指定应用,提高了时间,降低了系统的复杂性,使用最新的虚拟仪器。
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引用次数: 0
ALU design using Pseudo Dynamic Buffer based domino logic ALU设计采用基于domino逻辑的伪动态缓冲区
Siva Kumar Akurati, A. Angeline, V. S. K. Bhaaskaran
Background: Domino logic is widely used in modern digital systems because of easy implementation with less number of transistors and high speed. The pre-charge and evaluation phases of the domino logic, leads to enormous transitions at the output. This switching of the output is undesirable as it leads to more dynamic power dissipation. Methods: This achieved by the using the structures such as True Single Phase Clocking (TSPC), Limited Switch Dynamic Logic (LSDL) and Pseudo Dynamic Buffer (PDB). The PDB structure reduces the dynamic power to a greater extent, without increase in the number of transistors. Findings: The design of Arithmetic and logical units using PDB is presented in the paper for validating the claim. Conclusion: This paper details the design of an ALU using PDB based domino methodology. The PDB based domino logic ALU demonstrates an average power 11.86 mw with a delay of 152.75 ps. Simulations are carried using Cadence® Virtuoso with 180nm technology library file.
背景:Domino逻辑因其易于实现、晶体管数量少、速度快而广泛应用于现代数字系统中。domino逻辑的预充和评估阶段会导致大量的输出转换。输出的这种开关是不希望的,因为它会导致更多的动态功耗。方法:采用真单相时钟(TSPC)、有限开关动态逻辑(LSDL)和伪动态缓冲(PDB)等结构实现。PDB结构在不增加晶体管数量的情况下,更大程度地降低了动态功率。结果:本文提出了使用PDB的算术和逻辑单元的设计,以验证该声明。结论:本文详细介绍了基于PDB的多米诺骨牌方法的ALU设计。基于PDB的domino逻辑ALU的平均功率为11.86 mw,延迟为152.75 ps。模拟使用Cadence®Virtuoso与180nm技术库文件进行。
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引用次数: 1
Design of miniaturized dual polarized MIMO antenna 小型化双极化MIMO天线设计
Prakhar D. Vyas, G. Kumar, Abhijit G. Raut, U. K. Kommuri
This Work Presents the design of two different antenna. First, a Microstrip patch antenna with different shapes of cut in slot is designed. In order to increase the bandwidth and to obtain Dual polarization power divider having 50, 70 and 100 Ohm transmission line is fed in vertical and horizontal direction to the designed antenna. Second, a Serpinski Gasket antenna is designed for a working bandwidth of 5.1–5.8 Ghz A comparison is done between a antenna properties like frequency, return loss and gain of the two designed antennas.
本文介绍了两种不同天线的设计。首先,设计了一种具有不同切口形状的微带贴片天线。为了增加带宽和获得具有50、70和100欧姆传输线的双极化分配器,分别在垂直和水平方向馈送到所设计的天线。其次,设计了工作带宽为5.1 ~ 5.8 Ghz的Serpinski衬垫天线,比较了两种天线的频率、回波损耗和增益等天线特性。
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引用次数: 0
Effect of annealing on sol-gel derived TiO2 nanoparticles in acidic medium 酸性介质中退火对溶胶-凝胶法制备TiO2纳米粒子的影响
N. Haider, K. Misra
TiO2 nanoparticles are prepared by sol-gel method. As revealed by X-ray diffraction (XRD) spectra the nanoparticles change their phase from anatase to rutile when the annealing temperature goes beyond 650°C. W-H plot for the powder samples annealed at 450°C and 750°C shows the presence of tensile strain in them which affects the particle size. The difference in particle sizes obtained from Debye-Scherer formula and W-H plot is seen to reduce for lesser strain value. The field emission scanning electron microscope (FESEM) images are observed to depict the agglomerated clusters of the particles whose average size favors the XRD results. The absorption is seen to show a red shift, as annealing temperature is raised.
采用溶胶-凝胶法制备TiO2纳米颗粒。x射线衍射(XRD)表明,当退火温度超过650℃时,纳米颗粒由锐钛矿变为金红石。在450°C和750°C退火的粉末样品的W-H图表明,其中存在拉伸应变,影响颗粒尺寸。由Debye-Scherer公式和W-H图得出的颗粒尺寸差异随着应变值的减小而减小。通过场发射扫描电镜(FESEM)观察到颗粒的聚集团簇,其平均尺寸与XRD结果一致。随着退火温度的升高,吸收出现红移。
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引用次数: 0
Performance optimization of RingFET using LDD implantation 采用LDD植入的RingFET性能优化
V. M. Shobana, R. Srinivasan, V. Vaithianathan, K. K. Nagarajan
Semiconductor industry has explored various novel device structures to extend CMOS scaling. Circular geometry devices have been recently proposed to improve immunity to short channel effects without compromising planarity. In this work, one such circular geometry device called RingFET is considered and its performance enhancement through Lightly Doped Drain (LDD) implantation is sought using 3D TCAD simulations. RingFET has a circular gate geometry, which has better short channel immunity compared to conventional MOSFET structure mainly because of the elimination of side interface regions, that gives rise to trap induced leakages. This reduces the OFF current consequently, making RingFET better in the short channel regime. RingFET structure has a planar geometry but differs only lithographically with respect to MOSFET. This makes RingFET an interesting device to explore. The impact of LDD and its variants are studied with respect to DC and AC analysis using 3D TCAD simulations. The parameters under consideration are ON current, OFF current, Ion/Ioff ratio, sub-threshold swing (SS), transconductance (gm) and unity gain frequency (fT).
半导体工业探索了各种新颖的器件结构来扩展CMOS的缩放。最近提出了圆形几何器件,以提高对短通道效应的免疫力,同时不影响平面性。在这项工作中,考虑了一种称为RingFET的圆形几何器件,并使用3D TCAD模拟寻求通过轻掺杂漏极(LDD)植入来增强其性能。RingFET具有圆形栅极几何结构,与传统的MOSFET结构相比,具有更好的短通道抗扰性,主要是因为消除了引起陷阱诱发泄漏的侧界面区域。这降低了关断电流,从而使RingFET在短通道状态下表现更好。RingFET结构具有平面几何结构,但与MOSFET仅在光刻上有所不同。这使得RingFET成为一个值得探索的有趣器件。利用三维TCAD模拟研究了LDD及其变体对直流和交流分析的影响。考虑的参数有ON电流、OFF电流、Ion/ OFF比、亚阈值摆幅(SS)、跨导(gm)和单位增益频率(fT)。
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引用次数: 1
IoT augmented health monitoring system 物联网增强健康监测系统
A. Reddy, A. M. Marks, S. Prabaharan, S. Muthulakshmi
Objectives: Post hospitalization care of a patient treated for critical illness, for instance cardiac arrest has been regarded as imperative. Nevertheless, it has become inevitable to skip follow-ups by the patients themselves. Method: This paper aims at designing a system which continuously monitors the health of the patient despite the patient being busy with his routine. An application is developed on android platform combined with Internet of Things (IoT) and sensor devices. Health of patient will be monitored by sensors and data from sensors will be sent to cloud which can be accessed anytime by the doctor and/or caretaker both in the cloud and application for necessary follow-ups in real time. Findings: In order to find the health of a patient more parameters are needed. But the main parameter for identifying the health of a patient are heart rate and temperatures. More parameters can be added to the system developed. Improvements/Applications: More sensors can be added to the system and the system has many application scenarios such as family health care.
目的:治疗危重疾病(如心脏骤停)患者的住院后护理被认为是必要的。然而,跳过患者自己的随访已成为不可避免的。方法:设计一种在日常工作繁忙的情况下,仍能持续监测患者健康状况的系统。结合物联网和传感器设备,在android平台上开发了一个应用程序。患者的健康状况将由传感器监测,来自传感器的数据将被发送到云端,医生和/或护理人员可以在云和应用程序中随时访问云端,以便进行必要的实时随访。结果:为了发现患者的健康状况,需要更多的参数。但识别病人健康状况的主要参数是心率和体温。所开发的系统可以添加更多的参数。改进/应用:系统可以增加更多的传感器,具有家庭医疗等多种应用场景。
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引用次数: 10
Compact ‘V’ shaped metamaterial based resonator for wide band rejection 紧凑型的“V”形超材料基谐振器,用于宽带抑制
Murshed Ali Naskar, Maruti Tamrakar, D. Thiripurasundari
This paper represents a new technique to achieve a wideband rejection between 5.15 GHz to 5.85 GHz using a compact metamaterial structure. Metamaterials are narrowband resonator, which has bandwidth of 3% approx., but under this paper the novelty lies in incorporating a ‘V’ shaped metamaterial structure to achieve a fractional bandwidth of 13.17% within nominal space. Single ‘V’ shaped resonator has been simulated in full wave simulator and substantiated for permeability (μ), permittivity (□) and refractive index (n) values using Matlab code. The order of the resonator is increased upto 4 to achieve better rejection bandwidth and rejection level. The resonator and its complementary have been simulated along with a transmission line. The simulation result shows that the proposed 4th order ‘V’ shaped complementary resonator has better response and provides a wideband rejection from 5.15–5.85 GHz (WLAN Band) below −10dB for a dimension of 9×9 mm2.
本文提出了一种利用紧凑的超材料结构实现5.15 GHz ~ 5.85 GHz宽带抑制的新技术。超材料是窄带谐振腔,其带宽约为3%。但在本文中,新颖之处在于结合了“V”形的超材料结构,在标称空间内实现了13.17%的分数带宽。在全波模拟器上对单个“V”型谐振腔进行了仿真,并利用Matlab代码对其磁导率(μ)、介电常数(□)和折射率(n)值进行了验证。谐振器的阶数增加到4,以获得更好的抑制带宽和抑制水平。谐振器及其互补体随传输线进行了仿真。仿真结果表明,所提出的4阶“V”形互补谐振器具有更好的响应性能,并且在- 10dB范围内提供5.15 ~ 5.85 GHz (WLAN频段)的宽带抑制,尺寸为9×9 mm2。
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引用次数: 2
Universal BLDC controller — With IIoT set of features 通用无刷直流控制器-具有IIoT功能集
A. Saxena, R. Prakash
The exponential increase in the utilization of smart devices at consumer level as well as industrial grade level, the need to serve hundreds of sensors for effective computerization is of incredible conspicuousness in the field of M2M. HTTP convention was surely understood for remote checking, examination of information from extensive number of sensing components. There are some disadvantages of HTTP protocol like high consumption of bandwidth, more power requirement and lesser efficiency [1]. The different protocol like MQTT, AMQP and COAP are uses low bandwidth and capable of working in a network constraint situations in order to increase efficiency of embedded devices [2]. In this proposed model MQTT protocol has been used which is an IoT protocols used as a advancement to previous controlling methods. Brushless DC (BLDC) motors are replacing traditional brushed DC motors due to higher reliability, higher efficiency (about 50%) and lower noise. The efficient BLDC control solution for industrial IoT (Internet of Things) is proposed based on the industrial grade requirements, designed for low to high voltage operation. As the era of connecting the devices with the cloud is being increasing gradually, the proposed method uses an IoT protocol for monitoring as well as controlling over the motor. The proposed method provides us the control over motor rotation speed, forward & reverse rotation and failure detection like commutation error, over current and over voltage.
智能设备在消费级和工业级的利用率呈指数级增长,需要为数百个传感器提供有效的计算机化服务,这在M2M领域是非常显著的。HTTP约定当然被理解为远程检查,检查来自大量传感组件的信息。HTTP协议存在带宽消耗大、功耗要求高、效率低等缺点[1]。不同的协议,如MQTT, AMQP和COAP使用低带宽,能够在网络约束的情况下工作,以提高嵌入式设备的效率[2]。在这个提出的模型中,MQTT协议被使用,这是一种物联网协议,被用作以前控制方法的进步。无刷直流电动机(BLDC)正在取代传统的有刷直流电动机,因为它具有更高的可靠性、更高的效率(约50%)和更低的噪音。基于工业级要求,针对低至高压工作环境,提出了高效的工业物联网无刷直流控制解决方案。随着设备与云连接的时代逐渐增加,所提出的方法使用物联网协议对电机进行监控和控制。该方法提供了对电机转速、正反转的控制,以及对换向误差、过电流和过电压等故障的检测。
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引用次数: 2
A novel method for design and implementation of low power, high stable SRAM cell 一种设计与实现低功耗、高稳定SRAM单元的新方法
Ashish K. Sharma, V. Ravi
SRAM is widely used cache memory in the world. Materialization of low power SRAM with highest stability is a need of the hour. As from many years the requirement of fast and low power devices are augmenting. In this paper, in first part described about stability analysis from ADM (extract from N-Curve). After that information about leakage power is given. One 8T SRAM circuit is proposed with low power and highest probable stability. This paper promises reduction in power by 66%. The stability of the cell is also increased, i.e. WNM increased by 15.9%; penalty is in RNM by 7.9 %.
SRAM是目前世界上应用广泛的高速缓存存储器。实现具有最高稳定性的低功耗SRAM是迫切需要的。多年来,对快速低功耗器件的需求不断增加。在本文中,第一部分描述了ADM (extract from N-Curve)的稳定性分析。然后给出泄漏功率的信息。提出了一种低功耗、高稳定性的8T SRAM电路。这篇论文承诺减少66%的电力。细胞的稳定性也有所提高,即WNM提高了15.9%;惩罚是人民币贬值7.9%。
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引用次数: 4
期刊
2017 International Conference on Nextgen Electronic Technologies: Silicon to Software (ICNETS2)
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