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2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)最新文献

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SUPPRESSING METHOD OF ELECTROMAGNETIC INTERFERENCE FOR MULTI-SPECTRUM SIGNALS 多频谱信号的电磁干扰抑制方法
2020 6th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2020-10-20 DOI: 10.1109/GEMCCON50979.2020.9456736
Xie Penghao
{"title":"SUPPRESSING METHOD OF ELECTROMAGNETIC INTERFERENCE FOR MULTI-SPECTRUM SIGNALS","authors":"Xie Penghao","doi":"10.1109/GEMCCON50979.2020.9456736","DOIUrl":"https://doi.org/10.1109/GEMCCON50979.2020.9456736","url":null,"abstract":"With the rapid development of science and technology, electronic systems are becoming more and more complex and miniaturized. In a narrow space, there are multiple control signals. Aim at interference suppressing problem of multi-spectrum signals, the characteristics of intermodulation and crossmodulation interference has been studied, working frequency and bandwidth of multi-spectrum signals system are optimally designed for frequency controlling. A high-isolation multi-channel signal selection circulator network is proposed. The comprehensive method of filtering and isolation is used to solve the problem of channel mutual interference.","PeriodicalId":194675,"journal":{"name":"2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123042647","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}
引用次数: 0
Design of Dual-beam Substrate Integrated Waveguide Cavity-backed Slot Antenna 双波束基板集成波导腔背槽天线设计
2020 6th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2020-10-20 DOI: 10.1109/GEMCCON50979.2020.9456671
Li Shuang
{"title":"Design of Dual-beam Substrate Integrated Waveguide Cavity-backed Slot Antenna","authors":"Li Shuang","doi":"10.1109/GEMCCON50979.2020.9456671","DOIUrl":"https://doi.org/10.1109/GEMCCON50979.2020.9456671","url":null,"abstract":"Dual-beam antenna consists of two beams where the electromagnetic radiation from antenna to the air, each beam covers a certain airspace, so as to meet the demand of simultaneous coverage of two directions. Through the excellent coverage characteristics of dual-beam antenna, fine control is achieved in the coverage, reducing the optimization difficulties caused by over covering and overlapping of multiple signals, and improving capacity. A cavity-backed slot antenna based on the substrate integrated waveguide and grounded coplanar waveguide feed technique which working frequency in the frequency range of 13.4GHz-15GHz is designed. With a W-shaped slot etched, dual beam radiation characteristics in the frequency range of 13.4GHz-14GHz is obtained, the maximum gain of the antenna in the main beam is up to 7.5dBi.","PeriodicalId":194675,"journal":{"name":"2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122878162","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}
引用次数: 0
Research on Earth Current Characteristics of Tower Grounding Body under Different Faults in 10kV Distribution Network 10kV配电网不同故障条件下塔接地体接地电流特性研究
2020 6th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2020-10-20 DOI: 10.1109/GEMCCON50979.2020.9456717
Zepeng Chen, Guofeng Zhang, K. Hui, Kongyong Wu, Zhe Chen, Jie Guo
{"title":"Research on Earth Current Characteristics of Tower Grounding Body under Different Faults in 10kV Distribution Network","authors":"Zepeng Chen, Guofeng Zhang, K. Hui, Kongyong Wu, Zhe Chen, Jie Guo","doi":"10.1109/GEMCCON50979.2020.9456717","DOIUrl":"https://doi.org/10.1109/GEMCCON50979.2020.9456717","url":null,"abstract":"In order to study earth current characteristics of the tower grounding body of the 10kV distribution system under different faults, this paper uses EMTP-RV simulation software to establish a 10kV distribution line model. Under different neutral grounding methods and load distribution methods, the earth current characteristics of tower grounding body are studied. The simulation results show that in terms of power frequency short-circuit fault, the magnitude of earth current flowing through the grounding body are largest when single-phase short circuit occurs on 10kV side via transformer shell under low-resistance neutral grounding mehtod. Under different load distribution methods, there is a difference among the earth current of different positions along the line, but the decreasing trend along the line is the same, and the earth current is greater near the power supply. Under lightning fault, the earth current is mainly related to the lightning strike level, and is more severe than short circuit faults. The research results have certain guiding significance for the selection of the tower grounding body and application of new grounding materials such as graphite.","PeriodicalId":194675,"journal":{"name":"2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126192702","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}
引用次数: 0
Fast Evaluation of the Antenna Efficiency by a Determined Reverberation Chamber 用确定混响室快速评估天线效率
2020 6th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2020-10-20 DOI: 10.1109/GEMCCON50979.2020.9456733
Dan Chen, Xiang Zhou, Jingkang Ji, Peng Hu, Shouyang Zhai, Yan Chen
{"title":"Fast Evaluation of the Antenna Efficiency by a Determined Reverberation Chamber","authors":"Dan Chen, Xiang Zhou, Jingkang Ji, Peng Hu, Shouyang Zhai, Yan Chen","doi":"10.1109/GEMCCON50979.2020.9456733","DOIUrl":"https://doi.org/10.1109/GEMCCON50979.2020.9456733","url":null,"abstract":"Recently, reverberation chambers (RCs) have become a hotly discussed research area in electromagnetic compatibility (EMC). Researchers focus on the theoretical or physical explanations and their applications. As a concise method, RC provides another method to determine the efficiency of an antenna using a known chamber. The method is introduced in detail in this paper, including deducing the computational process and finding independent frequency points. Combining the obtained quality factor (Q) and new data, we present the experimental results to illustrate its validity.","PeriodicalId":194675,"journal":{"name":"2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129674937","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}
引用次数: 0
Susceptibility Study of UAV GPS Positioning Module Under Electrostatic Discharge 无人机GPS定位模块静电放电敏感性研究
2020 6th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2020-10-20 DOI: 10.1109/GEMCCON50979.2020.9456739
Baiseng Guo, Daojie Yu, Kai He, Mengjuan Chai, Changlin Zhou, Dongyao Zhang
{"title":"Susceptibility Study of UAV GPS Positioning Module Under Electrostatic Discharge","authors":"Baiseng Guo, Daojie Yu, Kai He, Mengjuan Chai, Changlin Zhou, Dongyao Zhang","doi":"10.1109/GEMCCON50979.2020.9456739","DOIUrl":"https://doi.org/10.1109/GEMCCON50979.2020.9456739","url":null,"abstract":"In order to study the electrostatic discharge (ESD) failure mechanism of the unmanned aerial vehicle(UAV) GPS module under normal working conditions in the shielded room, an equivalent test system is proposed. By using the contact discharge and assess the effect of the UAV under ESD interference, the effectiveness of the equivalent test system was verified. The control test has been used to determine the failure threshold of UAV GPS module. The failure threshold of the UAV GPS module is 3200V, which indicates that the GPS module in the UAV system is sensitive to ESD interference. In case of the lower electrostatic discharge voltage, the positioning error increases and the number of satellites received decreases. ESD interference may even cause the flight control module to malfunction. These results can be referenced in the electromagnetic compatibility design of UAV systems.","PeriodicalId":194675,"journal":{"name":"2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132216276","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}
引用次数: 1
Analysis of VFTO signal characteristics under the operation of isolating switch in GIS GIS中隔离开关作用下VFTO信号特性分析
2020 6th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2020-10-20 DOI: 10.1109/GEMCCON50979.2020.9456686
Lin Cheng, Lang Lei, Xiting Ruan, Haobo Li, Dongxin Hao, Bangjian Wei
{"title":"Analysis of VFTO signal characteristics under the operation of isolating switch in GIS","authors":"Lin Cheng, Lang Lei, Xiting Ruan, Haobo Li, Dongxin Hao, Bangjian Wei","doi":"10.1109/GEMCCON50979.2020.9456686","DOIUrl":"https://doi.org/10.1109/GEMCCON50979.2020.9456686","url":null,"abstract":"During the operation of the isolating switch in the GIS, due to the relatively slow contact movement speed, multiple pre-and heavy breakdowns occur in the gap of the isolating switch fracture, resulting in steep traveling waves, and multiple reflections and superpositions occur at the discontinuity of the GIS wave impedance. And then very fast transient over voltage (VFTO)appears. The core question of this paper is an electromagnetic interference. This paper is about the measurement mechanism of three-dimensional transient electromagnetic field, and realizing three-dimensional magnetic field synthesis of single-point data collected on the spot. Then through the correlation analysis of the signal, it is demonstrated that when studying the frequency characteristics of the VFTO waveform, it can be decomposed into the theory of spectrum analysis of the VFTO pulse waveform of each breakdown, and then the breakdown signal is analyzed for the statistical characteristics and time-frequency spectrum analysis. It characterizes the characteristic analysis of the entire VFTO signal. The transient radiation field of GIS switch operation may cause strong electromagnetic interference to the online monitoring digital terminal. By studying the frequency components of transient voltage, it can play an important role in the protection of electromagnetic compatibility and smart grid EMC.","PeriodicalId":194675,"journal":{"name":"2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132980400","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}
引用次数: 1
Optimizing Antenna Orientation and Positioning in a Radiated Susceptibility Test for Matched Transmission Line System 匹配传输线系统辐射敏感性试验中天线定向与定位优化
2020 6th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2020-10-20 DOI: 10.1109/GEMCCON50979.2020.9456705
Tao Liang, Yan-zhao Xie
{"title":"Optimizing Antenna Orientation and Positioning in a Radiated Susceptibility Test for Matched Transmission Line System","authors":"Tao Liang, Yan-zhao Xie","doi":"10.1109/GEMCCON50979.2020.9456705","DOIUrl":"https://doi.org/10.1109/GEMCCON50979.2020.9456705","url":null,"abstract":"The incidence and polarization directions of the impinging field generated during a radiated susceptibility (RS) test is determined by the orientation and positioning of feeding antenna. In this connection, the optimized way to place the antenna is addressed in this paper, with the objective to maximizing the coupling efficiency on a matched transmission line (TL) system, in particular, the optimized incidence and polarization angles are solved in close-form. This is achieved by tailoring a general reciprocity theorem for modeling the field-coupling to TL problem. The proposed analysis could help increase the testing level without additional investments on the radiation system in a RS test.","PeriodicalId":194675,"journal":{"name":"2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129146021","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}
引用次数: 1
Partial discharge characteristics for Needle-Paper Defect in Oil insulation under the pre-breakdown stage 预击穿阶段油绝缘针纸缺陷局部放电特性研究
2020 6th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2020-10-20 DOI: 10.1109/GEMCCON50979.2020.9456701
Guo Anxiang, Fan Chuang, Ding De, Liu Zhihua
{"title":"Partial discharge characteristics for Needle-Paper Defect in Oil insulation under the pre-breakdown stage","authors":"Guo Anxiang, Fan Chuang, Ding De, Liu Zhihua","doi":"10.1109/GEMCCON50979.2020.9456701","DOIUrl":"https://doi.org/10.1109/GEMCCON50979.2020.9456701","url":null,"abstract":"Converter transformer is one of the core equipment of DC transmission. Its operation safety and reliability is the reliable guarantee for the normal operation of DC transmission system. The large dispersion and randomness of partial discharge in the defect of oil paper insulated needle-board under the AC/DC composite voltage, and the large number of bubbles in the pre-breakdown stage of insulation further increase the complexity of partial discharge characteristics. The paper investigates the partial discharge characteristics for Needle-Paper Defect in Oil insulation under the pre-breakdown stage, which is of great significance. The average discharge amplitude and the average number of periodic discharge generally decrease with the increase of the pressure time. However, the variation rules of each group are not the same, and can be roughly divided into two types: fluctuation type change and monotonic type change. The difference between the two types of pre-breakdown characteristics is mainly related to the accumulation of bubbles on the surface of the board during the discharge process. According to the equivalent time-frequency spectrum, most of the discharge is concentrated in the dome area with the development of pre-breakdown.","PeriodicalId":194675,"journal":{"name":"2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116968959","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}
引用次数: 0
Comparative Analysis of Shielding Effectiveness of Cavity Excited by an Internal Source and an External Source in High Frequency Band 高频内源和外源激励空腔屏蔽效能的比较分析
2020 6th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2020-10-20 DOI: 10.1109/GEMCCON50979.2020.9456752
Jianming Xie, Shenhui Jing, Yixing Gu
{"title":"Comparative Analysis of Shielding Effectiveness of Cavity Excited by an Internal Source and an External Source in High Frequency Band","authors":"Jianming Xie, Shenhui Jing, Yixing Gu","doi":"10.1109/GEMCCON50979.2020.9456752","DOIUrl":"https://doi.org/10.1109/GEMCCON50979.2020.9456752","url":null,"abstract":"Based on the Bethe' small aperture theorem, the analytical models of rectangular cavities excited by internal electric dipole and external electric dipole are established respectively. By comparing the results of the analytical models with CST full-wave simulations in high frequency band, the validity of the analytical models is verified. Finally, by changing the position of the electric dipole and observation point, the difference of shielding effectiveness (SE) of two models is compared. The results show that the SE calculated by the two models is basically the same, but there are still some problems that need to be paid attention to in the actual EMC test so as to fully reflect the shielding effectiveness of the cavity.","PeriodicalId":194675,"journal":{"name":"2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126873390","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}
引用次数: 0
Research On Low Frequency Magnetic Field Test And Equivalent Modeling Method Of Ship Equipment 舰船设备低频磁场试验及等效建模方法研究
2020 6th Global Electromagnetic Compatibility Conference (GEMCCON) Pub Date : 2020-10-20 DOI: 10.1109/gemccon50979.2020.9456684
C. Hua, Chen Huang, Y. Zuo, Wenzhuo Wang, Jingxian Yang
{"title":"Research On Low Frequency Magnetic Field Test And Equivalent Modeling Method Of Ship Equipment","authors":"C. Hua, Chen Huang, Y. Zuo, Wenzhuo Wang, Jingxian Yang","doi":"10.1109/gemccon50979.2020.9456684","DOIUrl":"https://doi.org/10.1109/gemccon50979.2020.9456684","url":null,"abstract":"With the increasing power of ship-borne equipment, the proportion of low-frequency stray magnetic field to ship's magnetic field is increasing, the calculation and simulation method of low-frequency magnetic field has become more and more urgent. In this paper, an equivalent modeling method for typical low-frequency magnetic field sources on ships is proposed. The low-frequency magnetic field distribution of the typical device is obtained by testing, and an equivalent model is then established by the magnetic dipole array. Compared with the test data, the magnetic field calculation data obtained by the equivalent model has a small error, which verifies the accuracy of the equivalent model.","PeriodicalId":194675,"journal":{"name":"2020 6th Global Electromagnetic Compatibility Conference (GEMCCON)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127350600","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}
引用次数: 0
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