IEEE Letters on Electromagnetic Compatibility Practice and Applications最新文献

Synopsis of the September 2026 Issue of the IEEE Letters on EMC Practice and Applications 《IEEE电磁兼容实践与应用快报》2026年9月刊摘要

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IEEE Letters on Electromagnetic Compatibility Practice and Applications Pub Date : 2026-09-01 Epub Date: 2026-09-21 DOI: 10.1109/LEMCPA.2026.3725861

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IEEE ELECTROMAGNETIC COMPATIBILITY SOCIETY 电磁兼容学会

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IEEE Letters on Electromagnetic Compatibility Practice and Applications Pub Date : 2026-09-01 Epub Date: 2026-09-21 DOI: 10.1109/LEMCPA.2026.3725816

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Low-Level Radiated Emission Measurements Using the Chamber Gain of a VIRC 利用VIRC的腔室增益进行低水平辐射发射测量

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IEEE Letters on Electromagnetic Compatibility Practice and Applications Pub Date : 2026-09-01 Epub Date: 2026-08-06 DOI: 10.1109/LEMCPA.2026.3721372

Vasiliki Gkatsi;Axel van der Kort;Evelina Tourounoglou;Frank Leferink

{"title":"Low-Level Radiated Emission Measurements Using the Chamber Gain of a VIRC","authors":"Vasiliki Gkatsi;Axel van der Kort;Evelina Tourounoglou;Frank Leferink","doi":"10.1109/LEMCPA.2026.3721372","DOIUrl":"https://doi.org/10.1109/LEMCPA.2026.3721372","url":null,"abstract":"For performing electromagnetic compatibility (EMC) as well as TEMPEST radiated emission (RE) measurements, conventional test sites such as anechoic rooms are used. These sites are location-bound, usually time-consuming, and require low-noise receivers and high-gain antennas along with multiple testing positions of the equipment under test (EUT). To overcome those limitations, the use of a vibrating intrinsic reverberation chamber (VIRC) is investigated as an alternative test environment for RE measurements, and a novel chamber-factor-based conversion method is introduced to enable a comparison with the conventionally applied semi-anechoic chamber (SAC). EUTs with distinct directivities and frequency-dense generated emanations are tested. Good agreement with the respective SAC measurements validates the proposed conversion method. The average difference between the two test sites is shown to be 4 dB with the introduced conversion method. The results expose the capabilities of the VIRC in terms of measurement time, cost, convenience, and efficiency while they also highlight the ability of the VIRC to detect low-amplitude signals close to or below the noise floor of the receiver because of its chamber gain, extending the measurable dynamic range for weak emissions.","PeriodicalId":100625,"journal":{"name":"IEEE Letters on Electromagnetic Compatibility Practice and Applications","volume":"8 3","pages":"82-87"},"PeriodicalIF":1.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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EMI Filter Design Based on Multiobjective Optimization With Messy Genetic Algorithm 基于混沌遗传算法的多目标优化EMI滤波器设计

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IEEE Letters on Electromagnetic Compatibility Practice and Applications Pub Date : 2026-09-01 Epub Date: 2026-06-22 DOI: 10.1109/LEMCPA.2026.3706173

Róbert Orvai;János Hamar;Márk Csörnyei

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Broadband Reconfigurable Asymmetrical Quasi-Balanced Doherty Power Amplifier With Power Back-Off Range Enhancement and Out-of-Band Interference Suppression 具有功率退离范围增强和带外干扰抑制的宽带可重构非对称准平衡多尔蒂功率放大器

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IEEE Letters on Electromagnetic Compatibility Practice and Applications Pub Date : 2026-09-01 Epub Date: 2026-07-01 DOI: 10.1109/LEMCPA.2026.3708833

Zhenghua Wei;Pei Xiao;Gaosheng Li

{"title":"Broadband Reconfigurable Asymmetrical Quasi-Balanced Doherty Power Amplifier With Power Back-Off Range Enhancement and Out-of-Band Interference Suppression","authors":"Zhenghua Wei;Pei Xiao;Gaosheng Li","doi":"10.1109/LEMCPA.2026.3708833","DOIUrl":"https://doi.org/10.1109/LEMCPA.2026.3708833","url":null,"abstract":"This letter presents a novel design strategy for implementing a wideband asymmetrical quasi-balanced Doherty power amplifier (AQBDPA) with an extended power back-off range. It is discovered that the asymmetric transistor currents and drain supply voltages can be exploited in main and auxiliary power amplifiers (PAs) based on series/parallel quasi-balanced Doherty PA (QBDPA) architecture to achieve power back-off extension. Beyond that, though switching loading at the isolation port of the output quadrature coupler and exchanging adaptive biases for two PAs, the bandwidth of the proposed AQBDPA adopting impedance transformation networks (ITNs) with second harmonic manipulation can exceed one octave. To verify the proposed design methodology, the efficient AQBDPA prototype operating at 0.8–1.8 GHz is developed, which provides the measured high efficiency of 50.7%–70.4% at peak power and 42.1%–56.2% at 10-dB power back-off. Meanwhile, the second harmonic interference suppression with the output power of 32.1–34.2 dBm over 1–1.8 GHz is higher than 30.5 dBc.","PeriodicalId":100625,"journal":{"name":"IEEE Letters on Electromagnetic Compatibility Practice and Applications","volume":"8 3","pages":"70-75"},"PeriodicalIF":1.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Layout-Dependent Ringing and EMC Analysis in DC--DC Converters via AC Simulation 基于AC仿真的DC- DC变换器布局相关振铃和电磁兼容分析

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IEEE Letters on Electromagnetic Compatibility Practice and Applications Pub Date : 2026-09-01 Epub Date: 2026-07-24 DOI: 10.1109/LEMCPA.2026.3716886

Bibhu Prasad Nayak;Suman Pradhan;Kaushik Patra;Sayantan Dhar

{"title":"Layout-Dependent Ringing and EMC Analysis in DC--DC Converters via AC Simulation","authors":"Bibhu Prasad Nayak;Suman Pradhan;Kaushik Patra;Sayantan Dhar","doi":"10.1109/LEMCPA.2026.3716886","DOIUrl":"https://doi.org/10.1109/LEMCPA.2026.3716886","url":null,"abstract":"High-frequency ringing in switching DC–DC converters is a major source of electromagnetic emissions and a critical concern for electromagnetic compatibility (EMC) compliance. However, compliance tests typically occur late in the design cycle, making design iterations costly. Simulation-based approaches offer a viable alternative to streamline EMC validation early in the design phase. Time-domain (TD) simulation methods are particularly effective in capturing ringing effects accurately, but they require detailed device models and accurate parasitic extraction. On the other hand, frequency-domain (FD) approaches often depend on measured switching waveforms, limiting their use for early stage design and layout exploration. This letter proposes an AC-domain simulation approach based on approximate switching waveforms and sequential high-side and low-side switching to model ringing in dual-switch topologies. The method enables direct estimation of ringing frequencies and line impedance stabilization network (LISN) voltage levels without TD simulations or measurement-based inputs. Validation on a buck converter shows close agreement with the measurements.","PeriodicalId":100625,"journal":{"name":"IEEE Letters on Electromagnetic Compatibility Practice and Applications","volume":"8 3","pages":"65-69"},"PeriodicalIF":1.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149011255","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Evaluation of Data-Dependent Transmission Errors in Inter-IC Communication With Isolated I/O PDNs Under IEMI IEMI下隔离I/O pdn的ic间通信数据相关传输误差评估

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IEEE Letters on Electromagnetic Compatibility Practice and Applications Pub Date : 2026-06-01 Epub Date: 2026-02-13 DOI: 10.1109/LEMCPA.2026.3664447

Hikaru Nishiyama;Daisuke Fujimoto;Yuichi Hayashi

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Synopsis of the June 2026 Issue of the IEEE Letters on Electromagnetic Compatibility Practice and Applications 《IEEE电磁兼容性实践与应用快报》2026年6月刊摘要

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IEEE Letters on Electromagnetic Compatibility Practice and Applications Pub Date : 2026-06-01 Epub Date: 2026-06-22 DOI: 10.1109/LEMCPA.2026.3698178

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Shielding Integrity Monitoring System 屏蔽完整性监测系统

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IEEE Letters on Electromagnetic Compatibility Practice and Applications Pub Date : 2026-06-01 Epub Date: 2026-02-25 DOI: 10.1109/LEMCPA.2026.3668160

Frank Leferink;Denys Pokotilov

{"title":"Shielding Integrity Monitoring System","authors":"Frank Leferink;Denys Pokotilov","doi":"10.1109/LEMCPA.2026.3668160","DOIUrl":"https://doi.org/10.1109/LEMCPA.2026.3668160","url":null,"abstract":"The integrity of electromagnetic shielding is critical for the protection of high-value facilities, platforms, and equipment against electromagnetic interference (EMI), lightning effects, electromagnetic pulses, and the risk of compromising emanations. Traditionally, shielding effectiveness (SE) is only assessed during commissioning or through periodic inspections, leaving long intervals during which degradation, poor maintenance, unauthorized modifications, or aging effects may go undetected. This letter presents a shielding integrity monitoring system designed to provide continuous surveillance of shielding performance. The system is based on small transmitters, referred to as crickets, and receivers, called watchdogs, operating in license-free frequency bands. By exploiting the linear and wide dynamic range of the already built-in signal strength indicators, the system is able to detect increases in field levels that signal leakage through open doors, damaged gaskets, corroded seams, or improper cable penetrations. The approach leverages multipath reflections within enclosures and rooms, turning complex field distributions into an advantage for monitoring. The system is scalable to hundreds of transmitters and multiple receivers, enabling applications across shielded rooms, cabinets, platforms, and entire facilities. Continuous logging enables detection of both short-term anomalies, such as intrusions, and long-term degradation due to aging or environmental factors. The proposed solution thus provides real-time protection and early warning capability, complementing traditional inspection-based methods and significantly reducing the risk of unobserved shielding failures.","PeriodicalId":100625,"journal":{"name":"IEEE Letters on Electromagnetic Compatibility Practice and Applications","volume":"8 2","pages":"39-44"},"PeriodicalIF":1.4,"publicationDate":"2026-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148442521","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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IEEE ELECTROMAGNETIC COMPATIBILITY SOCIETY 电磁兼容学会

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IEEE Letters on Electromagnetic Compatibility Practice and Applications Pub Date : 2026-06-01 Epub Date: 2026-06-22 DOI: 10.1109/LEMCPA.2026.3698297

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