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2022 International Symposium on Electromagnetic Compatibility – EMC Europe最新文献

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Time-domain Characterization of Reconfigurable Intelligent Surfaces for Wireless Communications 无线通信中可重构智能曲面的时域表征
Pub Date : 2022-09-05 DOI: 10.1109/EMCEurope51680.2022.9901291
Giuseppe Pettanice, Fabrizio Loreto, Piergiuseppe Di Marco, D. Romano, F. Santucci, R. Alesii, Giulio Antonini
Reconfigurable intelligent surfaces (RISs) are an emerging transmission technology for application to wireless communications. Their accurate modeling is crucial for an effective design. In this work, a time domain modeling is proposed that comprises two steps: first the impulse response of the system is computed using the partial element equivalent circuit method thus including all the couplings among the elements of the RIS, then the communication channel is studied through a convolution-based solver in the time domain.
可重构智能表面(RISs)是一种应用于无线通信的新兴传输技术。它们的精确建模对于有效的设计至关重要。本文提出了一种时域建模方法,该方法包括两个步骤:首先,采用部分元件等效电路方法计算系统的脉冲响应,从而包括RIS元件之间的所有耦合,然后通过基于卷积的时域求解器研究通信信道。
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引用次数: 2
Mitigating Radiated Emissions of Power Feeders On-board Electric Aircraft 减少电动飞机上电源馈线的辐射排放
Pub Date : 2022-09-05 DOI: 10.1109/EMCEurope51680.2022.9901002
Leonardo Malburg, N. Moonen, J. L. Rotgerink, F. Leferink
The implementation of all-electric aircraft (AEA) will face several engineering challenges mainly due to its high power requirements. At its core lies the electric powertrain, consisting of the battery, inverter, and motor. Non-ideal behavior of components, cables, and other structures will act as a propagation path for Electroagnetic Interference (EMI). The analysis of EMI in the design phase is considerably complicated due to structural and geometric design, thus, hard to predict. This paper is a first step towards proposing the attenuation of radiated emissions from power feeders by optimizing the switching behavior of converters. Thus, contributing to the overall attenuation level and reducing the performance requirements of power line filters.
全电动飞机(AEA)的实施将面临一些工程挑战,主要是由于其高功率要求。其核心是由电池、逆变器和电机组成的电力传动系统。组件、电缆和其他结构的非理想行为将成为电磁干扰(EMI)的传播路径。由于结构和几何设计的关系,设计阶段的电磁干扰分析相当复杂,难以预测。本文是提出通过优化变流器的开关行为来衰减电源馈线辐射发射的第一步。因此,有助于整体衰减水平和降低电力线滤波器的性能要求。
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引用次数: 2
Exact-Kernel Thin-Wire MoM with Geometric Representation by Bezier Curves 用Bezier曲线表示的精确核细线MoM
Pub Date : 2022-09-05 DOI: 10.1109/EMCEurope51680.2022.9900954
T. Rylander, M. Botha
Electromagnetic field simulation of wire structures is important to high-frequency electromagnetic engineering applications, including antenna design and electromagnetic compatibility studies. This paper exploits the electric field integral equation to solve for the induced current on a curved thin-wire, which is modelled as a perfect electric conductor (PEC). The singular part of the Green's function is integrated by means of the complete elliptic integral of the first kind. The geometry of the curved wire is described by Bezier-curve segments, where this approach is particularly useful for problems where a smooth wire-geometry requires better representation than the current at (typically) low frequencies. The formulation is tested on the scattering from a closed PEC ring shaped as a circle for three different frequencies. As the number of elements is increased, the induced currents tend toward the reference solution provided by FEKO.
导线结构的电磁场仿真在高频电磁工程应用中具有重要意义,包括天线设计和电磁兼容性研究。本文利用电场积分方程求解了弯曲细导线上的感应电流,细导线被建模为完美电导体。利用第一类完全椭圆积分对格林函数的奇异部分进行积分。弯曲导线的几何形状由bezier曲线段描述,这种方法对于光滑导线几何形状需要比(通常)低频电流更好的表示的问题特别有用。在三种不同频率下,对封闭的环形PEC环的散射进行了测试。随着元件数量的增加,感应电流倾向于FEKO提供的参考溶液。
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引用次数: 0
Shielding Effectiveness of Cabinets using IEEE 299 and IEEE 299.1 and Effect of Loading 采用ieee299和ieee299.1的机柜屏蔽效能及负载效应
Pub Date : 2022-09-05 DOI: 10.1109/EMCEurope51680.2022.9901235
H. Bergsma, Christopher R. Clemens, F. Leferink
One major electromagnetic compatibility technique is shielding. It is the basic technique to create a barrier between different electromagnetic zones. Shielding effectiveness measurement procedures are compared, and applied to a cabinet. Flaws in measurement procedures and some suggestions for improvements are discussed. Loading a cabinet with equipment and the effect on shielding effectiveness is shown.
一个主要的电磁兼容技术是屏蔽。在不同的电磁区之间建立屏障是基本的技术。对屏蔽效能的测量方法进行了比较,并应用于某机柜。讨论了测量程序的缺陷和改进建议。给出了设备在机柜中的装载情况及其对屏蔽效果的影响。
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引用次数: 2
Detailed Investigation of the Vulnerability of an OFDM based WLAN Connection to CW Signal Interference 基于OFDM的WLAN连接对连续波信号干扰脆弱性的详细研究
Pub Date : 2022-09-05 DOI: 10.1109/EMCEurope51680.2022.9900952
Henrik Brech, H. Garbe
A new measurement setup for investigating the interference behaviour of Continuous Wave signals on packet based information transfer of the IEEE 802.11 standard in the 2.4 GHz ISM band is presented in this paper. The main focus of the measurement setup is a low level of complexity to perform reproducible results. A high degree of automation allows very detailed measurements of the Packet Error Rate over a wide range of CW frequencies and magnitudes. The measurement results are divided into depictions of the Packet Error Rate and Frame Check Sequence errors. Two different IEEE 802.11 standards with each using a 64-QAM and a BPSK modulation are presented in order to demonstrate the new measurement setup and investigate the vulnerability behaviour against narrow band interferers. Especially the subcarriers of the OFDM based WLAN signal tend to be the most vulnerable frequencies on higher coding schemes. The Pilot sub carrier frequencies in particular have proven to be even more vulnerable than the Data subcarriers.
本文提出了一种新的测量装置,用于研究2.4 GHz ISM频段IEEE 802.11标准中连续波信号对分组信息传输的干扰行为。测量设置的主要焦点是执行可重复结果的低复杂度。高度自动化允许在广泛的连续波频率和幅度范围内非常详细地测量分组错误率。测量结果分为分组错误率和帧校验序列错误的描述。提出了两个不同的IEEE 802.11标准,每个标准使用64-QAM和BPSK调制,以演示新的测量设置并研究针对窄带干扰的脆弱性行为。特别是基于OFDM的无线局域网信号的子载波在较高的编码方案中往往是最脆弱的频率。特别是导频子载波频率已被证明比数据子载波更容易受到攻击。
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引用次数: 1
Analysis of the PDN Induced Crosstalk Impacts on the High-Speed Signaling in Ultra- Thin and High Permittivity Substrates 超薄高介电常数衬底中PDN诱导串扰对高速信号的影响分析
Pub Date : 2022-09-05 DOI: 10.1109/EMCEurope51680.2022.9900949
Taiki Kitazawa, Y. Hayashi, Y. Fukawa, Yougwoo Kim
In this paper, we conduct analysis of the power delivery network (PDN) induced crosstalk impacts on the high-speed signaling in ultra-thin and high permittivity substrates. When the PDN impedance is high, the return current discontinuity occurs in signal via transition and causes noise through power/ground planes. Therefore, to reduce the PDN impedance, although the decoupling capacitors are used in printed circuit board (PCB) design, the effective bandwidth and design space have limits. Meanwhile, the ultra-thin and high permittivity substrate has capability of reducing the PDN impedance in the wideband. Using electromagnetic (EM) and circuit simulations, we compared the crosstalk impacts by analyzing the insertion loss, PDN impedance, and eye diagram in three substrates. The eye diagrams were simulated under the situation that the clock signal with data rate (DR) that corresponds to the frequency of (1,0) mode of PDN on an aggressor, which is ten times line width away from a victim. We compared the eye-opening voltage and power/ground noise amount among with/without aggressor and each DR of victim. As a result, we found that the ultra-thin and high permittivity substrate can significantly suppress the PDN induced crosstalk impacts compared to the conventional flame-retardant type 4 (FR-4) substrate. In addition, because the PDN impedance is reduced in the wideband, these substrates can provide a good return path for signal vias in any position mounted on the PCBs and are helpful for various issues related to the PDN impedance.
在本文中,我们分析了输电网络(PDN)引起的串扰对超薄和高介电常数衬底中高速信号的影响。当PDN阻抗较高时,信号经过渡产生回电流不连续,通过电源/地平面产生噪声。因此,为了降低PDN阻抗,印制电路板(PCB)设计中虽然采用去耦电容,但其有效带宽和设计空间都有限制。同时,超薄高介电常数衬底具有降低宽带PDN阻抗的能力。利用电磁和电路仿真,我们通过分析三种衬底的插入损耗、PDN阻抗和眼图来比较串扰的影响。在攻击者距离受害者10倍线宽的情况下,模拟了与PDN(1,0)模式频率对应的数据速率(DR)时钟信号的眼图。我们比较了有攻击者/无攻击者和被攻击者的每个DR的开眼电压和功率/地噪声量。结果发现,与传统阻燃型4 (FR-4)衬底相比,超薄高介电常数衬底可以显著抑制PDN诱导的串扰影响。此外,由于PDN阻抗在宽带中降低,这些基板可以为安装在pcb上的任何位置的信号过孔提供良好的返回路径,并有助于解决与PDN阻抗相关的各种问题。
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引用次数: 2
Measurement of steady-state and transient harmonics caused by TVS 由TVS引起的稳态和瞬态谐波的测量
Pub Date : 2022-09-05 DOI: 10.1109/EMCEurope51680.2022.9901243
Leonhard Petzel, D. Pommerenke, S. Holland, Seyed Mostafa Mousavi, Amin Pak
This paper discusses RF harmonic distortion created by ESD protection diodes. Different measurement topologies are analyzed with a focus on measurement error. Two improvements are presented. Besides the steady-state harmonics, measurement data of transient harmonics are presented. They show that after the initial turn-on of an RF signal, the harmonics might be significantly stronger than after they settled to their steady-state value. Finally, the impact of the recovery time is analyzed.
本文讨论了ESD保护二极管产生的射频谐波畸变。分析了不同的测量拓扑,重点分析了测量误差。提出了两项改进。除了稳态谐波外,还给出了暂态谐波的测量数据。他们表明,在射频信号初始开启后,谐波可能比稳定到稳态值后明显更强。最后,分析了恢复时间的影响。
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引用次数: 2
Analytical Method to Estimate Radiated Magnetic Field Emissions in Automotive Electric Drives 估计汽车电传动中辐射磁场发射的分析方法
Pub Date : 2022-09-05 DOI: 10.1109/EMCEurope51680.2022.9901062
Madhavi Dhara, G. A. Rasek
Automotive electric drives operate with high currents. The resulting magnetic field emissions face stringent requirements. High voltage components are usually shielded to reduce the emissions, so are the high voltage cables. Cables and their shields provide coupling paths for both intended operational and unintended parasitic currents which result in radiating loops. The magnetic field emissions depend on the shielding effectiveness, geometrical configuration of the cables and current distribution. This paper presents an analytical method to estimate the radiated magnetic field from an electric drive system. Resulting fields are calculated as the function of inner conductor currents only. The physical and geometrical parameters of the cable shields influence the calculations.
汽车电驱动装置在大电流下工作。由此产生的磁场发射面临着严格的要求。高压元件通常被屏蔽以减少辐射,高压电缆也是如此。电缆及其屏蔽为预期的工作电流和意外的寄生电流提供耦合路径,从而导致辐射回路。磁场发射取决于屏蔽效果、电缆的几何结构和电流分布。本文提出了一种估算电传动系统辐射磁场的解析方法。产生的磁场仅作为内部导体电流的函数来计算。电缆屏蔽层的物理和几何参数对计算有影响。
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引用次数: 0
Vulnerability of Smart Grid-based Protection Systems to Ultra-Wide Band IEMI Sources 基于智能电网的防护系统对超宽带IEMI源的脆弱性研究
Pub Date : 2022-09-05 DOI: 10.1109/EMCEurope51680.2022.9901132
F. Arduini, M. Suhrke, T. Pusch, H. Garbe
The threat of IEMI to power infrastructures has been growing in concern by experts and authorities worldwide. This is due to the increased integration of smart electronic devices (SEDs), whose microprocessor systems may be vulnerable to high-power electromagnetic interference. One possible gateway for such attacks is the digital protection relays employed to protect power substations. The malfunctioning of these devices could lead to equipment damage (e.g., power transformers) and cascading of blackout events. This paper presents a vulnerability study of a protection system with three different cable topologies subjected to a high-power radiated interfering source. The results showed that variations in the wiring topology would affect the protection system's incidence rate of critical failures when exposed to Ultra Wide Band (UWB) pulses.
电磁干扰对电力基础设施的威胁日益受到世界各国专家和当局的关注。这是由于智能电子设备(sed)的集成增加,其微处理器系统可能容易受到高功率电磁干扰。这种攻击的一个可能的网关是用于保护变电站的数字保护继电器。这些设备的故障可能导致设备损坏(例如,电力变压器)和连锁停电事件。本文研究了具有三种不同电缆拓扑结构的保护系统在高功率辐射干扰源作用下的脆弱性。结果表明,在超宽带(UWB)脉冲环境下,布线拓扑结构的变化会影响保护系统的临界故障发生率。
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引用次数: 0
A Study on EMC Test Methods for ESD-Induced Conducted Noise through Space Structures 空间结构中静电诱导传导噪声的电磁兼容测试方法研究
Pub Date : 2022-09-05 DOI: 10.1109/EMCEurope51680.2022.9901009
T. Kasai, Toshio Onigata
In orbiting spacecraft, electrical units may malfunction due to noise caused by electrostatic discharge (ESD) on the surface of the spacecraft. As a noise propagation model that leads to malfunctions, it is well known that there is a mode in which electromagnetic noise emitted from the discharge source propagates through free space and irradiates the electrical unit. In addition to this, there is a mode in which the current originating from the discharge propagates and flows across the surface of the spacecraft structure, is induced in the power supply harness or signal harness, and enters the electrical unit as conducted noise. On-orbit failures due to ESD-induced conductive noise have occurred on Japanese spacecraft, but although EMC test methods for this mode have been standardized by the European Space Agency (ESA), they are not easy to apply elsewhere because they require special test equipment that is difficult to obtain. In order to address this issue, we are investigating an EMC test method using equipment that is expected to be available in standard EMC Test laboratories. In this paper, we will show results of our investigation about new test method for noise propagation through spacecraft structure due to ESD.
在轨道航天器中,由于航天器表面静电放电(ESD)产生的噪声,电气单元可能会发生故障。作为一种导致故障的噪声传播模型,众所周知,放电源发出的电磁噪声存在一种通过自由空间传播并照射到电气单元的模式。除此之外,还有一种模式,即由放电产生的电流传播并流过航天器结构的表面,在电源线束或信号线束中产生感应,并作为传导噪声进入电气单元。在日本航天器上曾发生过由静电放电引起的导电噪声引起的在轨故障,但尽管针对这种模式的电磁兼容测试方法已由欧洲空间局(ESA)标准化,但由于需要特殊的测试设备而难以获得,因此不容易应用于其他地方。为了解决这个问题,我们正在研究一种使用标准EMC测试实验室中可用设备的EMC测试方法。本文将介绍一种新的航天器结构静电放电噪声传播测试方法的研究结果。
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引用次数: 1
期刊
2022 International Symposium on Electromagnetic Compatibility – EMC Europe
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