IEEE Transactions on Electromagnetic Compatibility最新文献_第6页

Design Methods and Characteristics of Active EMI Choke Using a Customized IC for Real 11-kW On-Board Charger 基于定制集成电路的实际11kw车载充电器有源EMI扼流圈设计方法与特性

IF 2.6 3区计算机科学

IEEE Transactions on Electromagnetic Compatibility Pub Date : 2026-08-01 Epub Date: 2026-03-30 DOI: 10.1109/TEMC.2026.3674136

Jeongbin Kwon;Sangyeong Jeong;Heejun Jung;Dongil Shin;Hyunwoo Seo;Jingook Kim

{"title":"Design Methods and Characteristics of Active EMI Choke Using a Customized IC for Real 11-kW On-Board Charger","authors":"Jeongbin Kwon;Sangyeong Jeong;Heejun Jung;Dongil Shin;Hyunwoo Seo;Jingook Kim","doi":"10.1109/TEMC.2026.3674136","DOIUrl":"10.1109/TEMC.2026.3674136","url":null,"abstract":"This article presents a design methodology for an active electromagnetic interference (EMI) choke that enhances common-mode (CM) impedance through complex impedance modeling and loop-gain stability analysis. The feedback impedance is designed based on the measured impedance of the original CM choke and the EMI filter and is optimized to achieve both impedance boosting and stability across the target frequency range. A customized integrated circuit was developed to realize this function, enabling compact implementation within an 18 mm × 20 mm printed circuit board and supporting cost-effective mass production. Experimental validation using an 11-kW on-board charger demonstrated that the proposed active EMI choke increases CM impedance by more than five times near 300 kHz. Conducted emission tests confirmed that a two-stage EMI filter incorporating the active choke achieves comparable or improved suppression performance relative to a three-stage passive filter while reducing the overall weight by 38%. The proposed method was also applied to various magnetic core materials, with nanocrystalline cores providing the most effective impedance enhancement for broadband EMI suppression.","PeriodicalId":55012,"journal":{"name":"IEEE Transactions on Electromagnetic Compatibility","volume":"68 4","pages":"896-909"},"PeriodicalIF":2.6,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147578087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Correlation and Spectral Density Functions in Mode-Stirred Reverberation—IV. Deep Correlation for Stir Efficiency and Diagnostics 模态搅拌混响中的相关函数和谱密度函数[j]。搅拌效率与诊断的深度关联

IF 2.6 3区计算机科学

IEEE Transactions on Electromagnetic Compatibility Pub Date : 2026-08-01 Epub Date: 2026-07-08 DOI: 10.1109/TEMC.2026.3702082

Luk R. Arnaut

引用次数: 0

Analysis of Grounding Structure Effects on Automotive Ethernet Using Unshielded Twisted Pair: Experimental and Simulation Study Under Bulk Current Injection Testing 基于非屏蔽双绞线的汽车以太网接地结构影响分析：大电流注入试验与仿真研究

IF 2.6 3区计算机科学

IEEE Transactions on Electromagnetic Compatibility Pub Date : 2026-08-01 Epub Date: 2026-03-29 DOI: 10.1109/TEMC.2026.3692718

Teppei Ikeda;Yusuke Yano;Koji Ichikawa;Osami Wada;Jianqing Wang

{"title":"Analysis of Grounding Structure Effects on Automotive Ethernet Using Unshielded Twisted Pair: Experimental and Simulation Study Under Bulk Current Injection Testing","authors":"Teppei Ikeda;Yusuke Yano;Koji Ichikawa;Osami Wada;Jianqing Wang","doi":"10.1109/TEMC.2026.3692718","DOIUrl":"10.1109/TEMC.2026.3692718","url":null,"abstract":"In bulk current injection (BCI) testing for an automotive Ethernet system, two electronic control units (ECUs), one as the device under test (DUT) and the other as the link partner (LP), are connected with an unshielded twisted-pair (UTP) cable, and the DUT’s immunity performance is affected by the LP’s grounding condition and system geometry. In this article, experimental evaluations are conducted by altering the enclosure-to-ground-plane grounding of the LP while keeping the DUT constant. The results indicate that differences in common-mode termination (CMT) can cause communication failures, shift failure-frequency ranges, and significantly modify the common-mode current characteristics at the connector. To interpret these phenomena, a “structure-based equivalent circuit model (SB-ECM)” that can reproduce ECUs with variable grounding conditions is developed by discretizing the ECU configuration, achieving qualitative agreement with measurements up to <inline-formula><tex-math>$bm{text{200},text{MHz}}$</tex-math></inline-formula>. Then, a “simplified SB-ECM” is derived to identify dominant elements affecting common-mode impedance (<inline-formula><tex-math>$mathbf {Z}_{text{com}}$</tex-math></inline-formula>) of the CMT and to analyze the influence of the relative magnitude of <inline-formula><tex-math>$mathbf {Z}_{text{com}}$</tex-math></inline-formula> levels between the DUT and LP, resonance, and antiresonance on immunity. The findings demonstrate that the grounding conditions and system geometry of both the DUT and the LP can substantially alter the injected current through the combined effects of cable-length resonance resulting from the CMT conditions. These results provide practical guidance for ECU grounding design, emphasizing the need to consider both DUT and LP conditions, accounting for parasitic capacitance and inductance in the early design stage.","PeriodicalId":55012,"journal":{"name":"IEEE Transactions on Electromagnetic Compatibility","volume":"68 4","pages":"800-812"},"PeriodicalIF":2.6,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148287368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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L-Shaped and PCB Antennas as Practical Alternatives for Shielding Effectiveness Characterization of Physically Small Enclosures l形和PCB天线作为物理小外壳屏蔽效能表征的实用选择

IF 2.6 3区计算机科学

IEEE Transactions on Electromagnetic Compatibility Pub Date : 2026-08-01 Epub Date: 2026-03-11 DOI: 10.1109/TEMC.2026.3683306

Zhao Chen;Johan Catrysse;Tim Claeys;Davy Pissoort

引用次数: 0

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IF 2.6 3区计算机科学

IEEE Transactions on Electromagnetic Compatibility Pub Date : 2026-08-01 Epub Date: 2026-08-17 DOI: 10.1109/TEMC.2026.3717400

引用次数: 0

Improving Macromodeling Accuracy for Power Distribution Networks at Both Low and High Frequencies Using Complex Zref 利用复Z参考提高配电网低高频宏观建模精度

IF 2.6 3区计算机科学

IEEE Transactions on Electromagnetic Compatibility Pub Date : 2026-08-01 Epub Date: 2026-04-20 DOI: 10.1109/TEMC.2026.3678937

Chiu-Chih Chou;Tzu-Yuan Fang

{"title":"Improving Macromodeling Accuracy for Power Distribution Networks at Both Low and High Frequencies Using Complex Zref","authors":"Chiu-Chih Chou;Tzu-Yuan Fang","doi":"10.1109/TEMC.2026.3678937","DOIUrl":"10.1109/TEMC.2026.3678937","url":null,"abstract":"Converting tabulated S-parameters into a rational macromodel is a common practice in signal integrity and power integrity (PI) analysis. For power distribution networks (PDNs), accurate fitting is challenging because the impedance seen from the chip ranges across several decades. One industry solution is to set the reference impedance <italic>Zref = 0.1 Ω for PI ports, which however compromises the accuracy at high frequencies. Other existing methods in the literature have limitations too. In this article, we propose a new approach: use a complex-valued and frequency-dependent <italic>Zref that is O(0.1) at kHz and O(10) at GHz, which thus improves the fitting accuracy at both ends of the spectrum. To ensure causality and facilitate equivalent circuit synthesis, the current-wave definition of <italic>S-parameters is chosen, as opposed to other options like the power waves of Youla, Kurokawa, and Marks. The method is compatible with any macromodeling algorithms such as vector fitting or Loewner matrix. Upon completion of fitting, a new circuit topology is proposed to implement the waves with complex <italic>Zref, which can be directly simulated by circuit solvers. A realistic 70-port package PDN is used as an example to validate the performance of the proposed method. Results show that good fitting accuracy from kHz to GHz can be achieved, and transient responses are accurate under slow and fast inputs.","PeriodicalId":55012,"journal":{"name":"IEEE Transactions on Electromagnetic Compatibility","volume":"68 4","pages":"1012-1024"},"PeriodicalIF":2.6,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147726039","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Prefabricated Programmable Metasurface Reverberation Chamber 预制可编程超表面混响室

IF 2.6 3区计算机科学

IEEE Transactions on Electromagnetic Compatibility Pub Date : 2026-08-01 Epub Date: 2026-06-25 DOI: 10.1109/TEMC.2026.3702193

Ru Wang;Peng Hu;Zhiyi Guo;Qinrong Cui;Zixuan Sun;Chenchen Niu;Liangliang Liu;Xuezhi Zheng;Yu Luo;Zhuo Li

{"title":"A Prefabricated Programmable Metasurface Reverberation Chamber","authors":"Ru Wang;Peng Hu;Zhiyi Guo;Qinrong Cui;Zixuan Sun;Chenchen Niu;Liangliang Liu;Xuezhi Zheng;Yu Luo;Zhuo Li","doi":"10.1109/TEMC.2026.3702193","DOIUrl":"10.1109/TEMC.2026.3702193","url":null,"abstract":"In situ electromagnetic compatibility (EMC) testing is essential for evaluating large, complex, and immobile systems, yet conventional reverberation chambers face significant challenges due to fixed-location constraints. This article presents a prefabricated programmable metasurface reverberation chamber that combines a transportable conductive-fabric enclosure with a programmable Pancharatnam–Berry (PB) phase metasurface stirrer. The core innovation lies in a PB phase metasurface stirrer comprising an array of independently rotatable meta-atoms, each actuated by dedicated microstepper motors to switch between binary orientational states (<inline-formula><tex-math>$0^circ /90^circ $</tex-math></inline-formula>), thereby generating diverse geometric phase distributions. Experimental validation of a 1.8 m × 0.8 m × 0.8 m prototype operating from 0.5 to 18 GHz demonstrates the field uniformity satisfying IEC 61000-4-21 requirements, with a lowest usable frequency of 0.8 GHz and high quality-factor throughout the frequency range. This work provides a portable, rapidly deployable platform with controllable and reproducible solutions for in situ EMC testing.","PeriodicalId":55012,"journal":{"name":"IEEE Transactions on Electromagnetic Compatibility","volume":"68 4","pages":"835-843"},"PeriodicalIF":2.6,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148342222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Phaseless Radiation Source Reconstruction via Adaptive SVD With Accelerated Iteration 基于加速迭代自适应奇异值分解的无相辐射源重构

IF 2.6 3区计算机科学

IEEE Transactions on Electromagnetic Compatibility Pub Date : 2026-08-01 Epub Date: 2026-07-03 DOI: 10.1109/TEMC.2026.3697432

Yan Li;Fang Xu;Guoliang Yu;Yang Qiu;Mingmin Zhu;Haomiao Zhou;Ling Zhang;Song Sun;Er-Ping Li

{"title":"Phaseless Radiation Source Reconstruction via Adaptive SVD With Accelerated Iteration","authors":"Yan Li;Fang Xu;Guoliang Yu;Yang Qiu;Mingmin Zhu;Haomiao Zhou;Ling Zhang;Song Sun;Er-Ping Li","doi":"10.1109/TEMC.2026.3697432","DOIUrl":"10.1109/TEMC.2026.3697432","url":null,"abstract":"To improve the accuracy of equivalent radiation source modeling, this article proposes a phaseless single-plane iterative radiation source reconstruction method based on adaptive singular value decomposition (ASVD) with Tikhonov regularization. Unlike traditional singular value decomposition, which suffers from the limitations of one-time matrix decomposition and high sensitivity to noise, the proposed ASVD approach performs iterative decomposition of the transfer coefficient matrix and dynamically updates the singular values using a threshold determined by the maximum singular value. This strategy effectively suppresses numerical errors and enhances reconstruction stability. Furthermore, five accelerated iterative schemes—Nesterov accelerated gradient, fast iterative shrinkage threshold algorithm, preconditioned conjugate gradient, alternating direction multiplier method, and Barzilai–Borwein—are incorporated to further improve computational efficiency. Both simulation and experimental results verify that the reconstructed sources achieve a relative error below 3% compared with measurements, demonstrating the proposed method’s high accuracy and efficiency.","PeriodicalId":55012,"journal":{"name":"IEEE Transactions on Electromagnetic Compatibility","volume":"68 4","pages":"982-989"},"PeriodicalIF":2.6,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148383823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Passive Shielding Integrity Monitoring Method Using Signals-of-Opportunity and Software-Defined Radios 利用机会信号和软件定义无线电的无源屏蔽完整性监测方法

IF 2.6 3区计算机科学

IEEE Transactions on Electromagnetic Compatibility Pub Date : 2026-08-01 Epub Date: 2026-04-16 DOI: 10.1109/TEMC.2026.3680655

Ridvan Aba;Robert Vogt-Ardatjew;Karol Niewiadomski;Ryan Groot;Hans Schipper;Frank Leferink

{"title":"Passive Shielding Integrity Monitoring Method Using Signals-of-Opportunity and Software-Defined Radios","authors":"Ridvan Aba;Robert Vogt-Ardatjew;Karol Niewiadomski;Ryan Groot;Hans Schipper;Frank Leferink","doi":"10.1109/TEMC.2026.3680655","DOIUrl":"10.1109/TEMC.2026.3680655","url":null,"abstract":"Effective shielding is crucial for a range of applications, such as safeguarding information-sensitive systems and providing protection against the effects of high-altitude, nuclear, or lightning-induced electromagnetic pulses. Since the deterioration of the shield can have serious consequences, real-time monitoring is critical to ensure the continuous shielding integrity. Conventional shielding effectiveness measurement techniques are limited to periodic evaluations, making them unsuitable for real-time monitoring. Furthermore, conventional shielding effectiveness measurements rely on high field strength electromagnetic signals which are not desired for continuous assessment. This article proposes a passive shielding integrity monitoring method particularly designed for on-site conditions, using signals-of-opportunity and software-defined radio-based receivers. Unlike conventional methods, due to its small footprint, the proposed method is able to be applied in operational enclosures with contents. Experimental results have shown the feasibility and adaptability of the proposed method. The proposed method allows the bridging between periodic evaluations and real-time monitoring and helps in mitigating the risks associated with the potential electromagnetic leakage of interfering signals or compromising emanations, thereby significantly enhancing information security for sensitive environments and critical infrastructure.","PeriodicalId":55012,"journal":{"name":"IEEE Transactions on Electromagnetic Compatibility","volume":"68 4","pages":"876-885"},"PeriodicalIF":2.6,"publicationDate":"2026-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147695673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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IF 2.6 3区计算机科学

IEEE Transactions on Electromagnetic Compatibility Pub Date : 2026-08-01 Epub Date: 2026-08-17 DOI: 10.1109/TEMC.2026.3722412

引用次数: 0