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Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487)最新文献

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Hexad loop (H-loop) antenna in front of 60/spl deg/ corner reflector for EMC measurement 60/声压角反射镜前的六角环(h环)天线用于电磁兼容测量
Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487) Pub Date : 1997-12-03 DOI: 10.1109/ICEMIC.1997.669764
P. K. Saha, N. M. Alam Chowdhury, Z. Alam
{"title":"Hexad loop (H-loop) antenna in front of 60/spl deg/ corner reflector for EMC measurement","authors":"P. K. Saha, N. M. Alam Chowdhury, Z. Alam","doi":"10.1109/ICEMIC.1997.669764","DOIUrl":"https://doi.org/10.1109/ICEMIC.1997.669764","url":null,"abstract":"A newly developed EMC (electromagnetic compatibility) antenna is proposed in this paper which can simulate a highly directive standard EM (electromagnetic) wave. The proposed antenna can be made by placing one-sixth of conducting loop-wire (H-loop) in front of a 60/spl deg/ degree corner reflector. The mathematical model of such a quasi-shield probe called the H-loop is developed. The developed antenna parameters have been compared with those of the existing quarter loop antenna and a complete loop antenna. The designed H-loop antenna has been constructed and the radiation pattern of the antenna is measured to compare the theoretical radiation pattern. Comparison shows a very good agreement with the theoretical pattern.","PeriodicalId":444507,"journal":{"name":"Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121062276","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
EMI modelling of mutual coupling in phased array synthesis 相控阵合成中相互耦合的电磁干扰建模
Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487) Pub Date : 1997-12-03 DOI: 10.1109/ICEMIC.1997.669788
A. Bhattacharya, A. Chakrabarty
{"title":"EMI modelling of mutual coupling in phased array synthesis","authors":"A. Bhattacharya, A. Chakrabarty","doi":"10.1109/ICEMIC.1997.669788","DOIUrl":"https://doi.org/10.1109/ICEMIC.1997.669788","url":null,"abstract":"The element factor of each element in an array is different from the others due to the mutual interaction of the elements. The element factors of each of the elements is evaluated by solving the exact aperture fields of each radiator using the method of moments. By giving different Taylor excitation to the array, the exact radiation pattern is evaluated and compared with the array pattern without taking into account the mutual coupling. The effect of mutual coupling in array synthesis is thus modelled as an EMI problem.","PeriodicalId":444507,"journal":{"name":"Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120948100","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: 2
Measurement of antenna factor-a case study 天线系数的测量——以实例为例
Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487) Pub Date : 1997-12-03 DOI: 10.1109/ICEMIC.1997.669809
N. K. Agarwal, K. Venkataramani
{"title":"Measurement of antenna factor-a case study","authors":"N. K. Agarwal, K. Venkataramani","doi":"10.1109/ICEMIC.1997.669809","DOIUrl":"https://doi.org/10.1109/ICEMIC.1997.669809","url":null,"abstract":"Radiated emission is one of the electromagnetic compatibility (EMC) compliance tests enforced by various regulatory and advisory agencies. The specifications limit for this test are expressed as field intensity in the units of volts per meter or more commonly as dB/spl mu/v/M. The emissions are measured using calibrated antennas and a matched receiver. To compute the field strength from the response of the receiver, \"antenna factor\" is a vital parameter. But the antenna factor used for EMC measurements, generally supplied by the manufacturer, is valid mostly for far-field conditions and many times considerable error occurs when situations other than far-field ranges are encountered. This paper describes, in detail, test set up, procedures and test results for antenna factors w.r.t. various parameters such as distance, polarisation and test area. Discussion on factors responsible for errors and their control are enumerated.","PeriodicalId":444507,"journal":{"name":"Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487)","volume":"104 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116545073","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: 3
On the development of an impulse current generator 脉冲电流发生器的研制
Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487) Pub Date : 1997-12-03 DOI: 10.1109/ICEMIC.1997.669839
N. Kishore, P. Bhakta, R. Sharan
{"title":"On the development of an impulse current generator","authors":"N. Kishore, P. Bhakta, R. Sharan","doi":"10.1109/ICEMIC.1997.669839","DOIUrl":"https://doi.org/10.1109/ICEMIC.1997.669839","url":null,"abstract":"Lightning is known to be the single largest cause of outages on power systems. Protection against lightning invariably consists in employing surge arresters. An important performance criterion for an arrester is the residual voltage. The measurement of residual voltage employs an impulse current generator. This work deals with design and development of 10 kA, 50 kV, 5 kJ impulse current generator. The generator consists of a capacitor bank (3.6 /spl mu/F, 50 kV) capable of being charged from a charging set rated 50 kV DC based on a half-wave rectifier, noninductively wound waveshaping resistors and an air cored coil (waveshaping inductor). A triggered hemispherical gap is used as a switch to initiate the current impulse. Triggering is done by distorting the field of the sphere gap using a third electrode to which an electrical pulse is given from a trigger circuit based on ignition coil. Impulse current is monitored using the noninductive resistive shunt of the radial type built using a double sided copper clad PCB. Residual voltage measurements are performed using a high voltage resistive potential divider.","PeriodicalId":444507,"journal":{"name":"Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125207355","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: 7
Anechoic chamber related issues for very large automated planar near field range 消声室的相关问题，适用于非常大的自动化平面近场范围
Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487) Pub Date : 1997-12-03 DOI: 10.1109/ICEMIC.1997.669770
S. Christopher, A. Rao, S. Varughese, M. Easwaran
{"title":"Anechoic chamber related issues for very large automated planar near field range","authors":"S. Christopher, A. Rao, S. Varughese, M. Easwaran","doi":"10.1109/ICEMIC.1997.669770","DOIUrl":"https://doi.org/10.1109/ICEMIC.1997.669770","url":null,"abstract":"LRDE has set up an automated planar near field measurement facility with a size of 18 m/spl times/12 m/spl times/10 m. This paper discusses anechoic chamber related issues, such as the requirement of the absorbers, quiet zone etc. which were faced during the design stage. A novel technique to enhance the quiet zone with commercially available absorbers, with -40 to -50 dB reflectivity is explained.","PeriodicalId":444507,"journal":{"name":"Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132606159","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
Prediction of near field of an aperture antenna having cosine over pedestal type of excitation for EMI estimation 用于电磁干扰估计的具有余弦基座型激励的孔径天线近场预测
Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487) Pub Date : 1997-12-03 DOI: 10.1109/ICEMIC.1997.669787
A. Das, D. R. Poddar, B. K. Sarkar
{"title":"Prediction of near field of an aperture antenna having cosine over pedestal type of excitation for EMI estimation","authors":"A. Das, D. R. Poddar, B. K. Sarkar","doi":"10.1109/ICEMIC.1997.669787","DOIUrl":"https://doi.org/10.1109/ICEMIC.1997.669787","url":null,"abstract":"This paper presents an estimation of the near field of an aperture antenna having a cosine over pedestal type of excitation from the spectral domain approach. The plane wave spectrum at any plane is found from the field distribution at the aperture plane in the spatial domain. The inverse Fourier transform of the spectrum enables an evaluation of the near zone field as well as the reconstruction of the aperture field.","PeriodicalId":444507,"journal":{"name":"Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133368597","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
EMC design and analysis of six port dual polariser 六口双偏振器的电磁兼容设计与分析
Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487) Pub Date : 1997-12-03 DOI: 10.1109/ICEMIC.1997.669798
G. Sahoo, A. Chakrabarty
{"title":"EMC design and analysis of six port dual polariser","authors":"G. Sahoo, A. Chakrabarty","doi":"10.1109/ICEMIC.1997.669798","DOIUrl":"https://doi.org/10.1109/ICEMIC.1997.669798","url":null,"abstract":"A four port slot coupled dual polariser will act as a six port dual polariser electrically because of the number of modes that it supports at the operating frequency. The six port analysis is based on the method of moments. A set of coupled integro differential equations are obtained from the boundary condition of a tangential magnetic field at the slot-aperture interface. The scattering parameters are evaluated from the dominant field scattered into various electrical ports. Mutual coupling in the aperture, is properly accounted for. The finite waveguide wall thickness is considered as a stub waveguide and appropriate cavity Green's function is employed in the analysis.","PeriodicalId":444507,"journal":{"name":"Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130286732","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
Impact of ultra wide band radar (UWBR) systems in EMC scenario 超宽带雷达(UWBR)系统在EMC场景下的影响
Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487) Pub Date : 1997-12-03 DOI: 10.1109/ICEMIC.1997.669802
D. C. Pande, G. Cleetus
{"title":"Impact of ultra wide band radar (UWBR) systems in EMC scenario","authors":"D. C. Pande, G. Cleetus","doi":"10.1109/ICEMIC.1997.669802","DOIUrl":"https://doi.org/10.1109/ICEMIC.1997.669802","url":null,"abstract":"The availability of ultra wide band radar (UWBR) systems with their subtle characteristics enhance the complexity of achieving electromagnetic compatibility (EMC). For efficient applications an UWBR system requires a total radiated peak power of the order of a few GW with a transmitted pulse of several hundred picoseconds and a corresponding rise and fall time. The generation and coherent radiation of several hundred picoseconds double exponential pulse, with a spatial extent of several centimeters, requires special EMC considerations to achieve intrasystem EMC. For long range wide area surveillance radar requiring effective radiated power in the GW range makes the intersystem EMI problem effectively insurmountable. This paper highlights the electromagnetic interference (EMI) and compatibility aspects pertaining to UWBR systems. The electromagnetic environment (EME) and its impact in intrasystem and intersystem EMI problems, their control and the applicability of the existing standards are critically analyzed and discussed.","PeriodicalId":444507,"journal":{"name":"Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121635322","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: 2
Microwave front end receiver using supercomponent approach 采用超分量方法的微波前端接收机
Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487) Pub Date : 1997-12-03 DOI: 10.1109/ICEMIC.1997.669854
A. Mangatayaru, B. Rama Krishna Rao, S. Ramasamy
{"title":"Microwave front end receiver using supercomponent approach","authors":"A. Mangatayaru, B. Rama Krishna Rao, S. Ramasamy","doi":"10.1109/ICEMIC.1997.669854","DOIUrl":"https://doi.org/10.1109/ICEMIC.1997.669854","url":null,"abstract":"Modern airborne multimode radars increasingly demand higher performance with small size, low weight and high reliability. In order to address these problems of microwave and RF receiver designers, an attempt has been made by adapting the technique of integrating various microwave subassemblies to form a single unit, known as the \"supercomponent\". This article discusses the design and development of a microwave front end receiver using the supercomponent approach. An account of design of various types of MICs that are used in the integrated receiver is presented along with test results. The results of the integrated receiver and the advantages of this supercomponent approach over the conventional method of developing a receiver by integrating individual discrete components are highlighted.","PeriodicalId":444507,"journal":{"name":"Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123954979","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: 4
Biological effects of EMI from domestic appliance 家用电器电磁干扰的生物效应
Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487) Pub Date : 1997-12-03 DOI: 10.1109/ICEMIC.1997.669815
N. Francis
{"title":"Biological effects of EMI from domestic appliance","authors":"N. Francis","doi":"10.1109/ICEMIC.1997.669815","DOIUrl":"https://doi.org/10.1109/ICEMIC.1997.669815","url":null,"abstract":"Electromagnetic fields have an adverse effect on human health. Low frequency, radio frequency and microwave frequency may cause a flow of current through the human body. This flow of current generates heat and produce thermal injury. Natural low frequency fields are static electric fields between the ionosphere and Earth, and static electromagnetic pulses due to lightning. These fields have been keeping living beings in an invisible cage of EM wave and pulses. The health effects that might originate from EM radiations are almost certainly the most complicated and difficult to understand of all the effects of EM radiations. In domestic appliances a controlled environment is created where the radiated E&H fields are reduced below safe values by different means viz. shields, gaskets. The average specific adsorption rate (SAR), is 0.08 W/kg for a person's entire body and the peak SAR is 1.6 W/kg. This paper analyses and presents the biological effects of EMI on people working within the vicinity of radiation emitted by domestic appliances.","PeriodicalId":444507,"journal":{"name":"Proceedings of the International Conference on Electromagnetic Interference and Compatibility '99 (IEEE Cat. No. 99TH 8487)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-12-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131302307","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: 3
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