Pub Date : 2003-10-14DOI: 10.1109/ISEMC.2003.1236608
J. C. Chai, E. Dressel, A. Britting, J.L. Montegut
The RF pickups by the long heliax cables at space launch sites in lightning environments were assessed by performing a field-to-cable coupling analysis which were verified via measurement data collected with the online lightning monitoring system (OLMS) installed at the lauch site. It was found that while some pickup amplitudes may be discernable, the action integrals, a measure of energies due to lightning, of these RF pickups seem always indistinguishable from the noise floors.
{"title":"Electromagnetic pickups by long heliax cables in lightning environments","authors":"J. C. Chai, E. Dressel, A. Britting, J.L. Montegut","doi":"10.1109/ISEMC.2003.1236608","DOIUrl":"https://doi.org/10.1109/ISEMC.2003.1236608","url":null,"abstract":"The RF pickups by the long heliax cables at space launch sites in lightning environments were assessed by performing a field-to-cable coupling analysis which were verified via measurement data collected with the online lightning monitoring system (OLMS) installed at the lauch site. It was found that while some pickup amplitudes may be discernable, the action integrals, a measure of energies due to lightning, of these RF pickups seem always indistinguishable from the noise floors.","PeriodicalId":359422,"journal":{"name":"2003 IEEE Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.03CH37446)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133185804","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}
Pub Date : 2003-10-14DOI: 10.1109/ISEMC.2003.1236579
W. Bennett
The electric and magnetic fields of a current element are found without the usual assumptions made to find the fields of the Hertzian dipole. The result is a simpler and more accurate characterization of the current element: five field components, rather than seven, at any distance; and, three field components, at short distances, one approaching zero.
{"title":"The current element is not a Hertzian dipole","authors":"W. Bennett","doi":"10.1109/ISEMC.2003.1236579","DOIUrl":"https://doi.org/10.1109/ISEMC.2003.1236579","url":null,"abstract":"The electric and magnetic fields of a current element are found without the usual assumptions made to find the fields of the Hertzian dipole. The result is a simpler and more accurate characterization of the current element: five field components, rather than seven, at any distance; and, three field components, at short distances, one approaching zero.","PeriodicalId":359422,"journal":{"name":"2003 IEEE Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.03CH37446)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124122269","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}
Pub Date : 2003-10-14DOI: 10.1109/ISEMC.2003.1236705
A.K.M. Mahbub Ar Rashid, N. Kuwabara, M. Maki, Y. Akiyama, H. Yamane
Influence to electromagnetic environment has been studied for power line communication (PLC). Longitudinal conversion loss (LCL) and input impedance are important parameters to evaluate the influence. Indoor AC mains line is modeled considering with typical conditions of Japanese house. The modeled line and electric equipment are presented with 4-port F-matrixes. The parameters of 4-port F-matrix are determined from calculation and measurement. Using this model, the input impedance and the LCL are calculated. The analysis model is examined by a simple network, and the results show that the calculation values almost agree with the measured values. The input impedance and the LCL are investigated for actual AC mains line, and the measured results almost agree with the calculated value.
{"title":"Evaluation of longitudinal conversion loss (LCL) for indoor AC mains line","authors":"A.K.M. Mahbub Ar Rashid, N. Kuwabara, M. Maki, Y. Akiyama, H. Yamane","doi":"10.1109/ISEMC.2003.1236705","DOIUrl":"https://doi.org/10.1109/ISEMC.2003.1236705","url":null,"abstract":"Influence to electromagnetic environment has been studied for power line communication (PLC). Longitudinal conversion loss (LCL) and input impedance are important parameters to evaluate the influence. Indoor AC mains line is modeled considering with typical conditions of Japanese house. The modeled line and electric equipment are presented with 4-port F-matrixes. The parameters of 4-port F-matrix are determined from calculation and measurement. Using this model, the input impedance and the LCL are calculated. The analysis model is examined by a simple network, and the results show that the calculation values almost agree with the measured values. The input impedance and the LCL are investigated for actual AC mains line, and the measured results almost agree with the calculated value.","PeriodicalId":359422,"journal":{"name":"2003 IEEE Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.03CH37446)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121413855","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}
Pub Date : 2003-10-14DOI: 10.1109/ISEMC.2003.1236725
S. Caniggia, F. Maradei
The paper deals with the development of equivalent circuit models of shielded cables suitable to analyze immunity by commercial circuit simulators. Equivalent circuits of coaxial cables based on different assumptions are proposed and validated by comparing the solutions with those derived by other approaches. Different circuit models are derived for the case of lossless and lossy cables.
{"title":"Equivalent circuit models for the analysis of coaxial cables immunity","authors":"S. Caniggia, F. Maradei","doi":"10.1109/ISEMC.2003.1236725","DOIUrl":"https://doi.org/10.1109/ISEMC.2003.1236725","url":null,"abstract":"The paper deals with the development of equivalent circuit models of shielded cables suitable to analyze immunity by commercial circuit simulators. Equivalent circuits of coaxial cables based on different assumptions are proposed and validated by comparing the solutions with those derived by other approaches. Different circuit models are derived for the case of lossless and lossy cables.","PeriodicalId":359422,"journal":{"name":"2003 IEEE Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.03CH37446)","volume":"7 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125148286","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}
Pub Date : 2003-10-14DOI: 10.1109/ISEMC.2003.1236605
C. Zombolas
Regulations limiting human exposure to radio frequency (RF) electromagnetic radiation (EMR) now exist in many countries. To legally market mobile and portable transmitting equipment (MPTE) in Australia, suppliers must comply with the provisions of the Australian Communications Authority (ACA) regulations on EMR and specific absorption rate (SAR). The regulatory arrangements include RF EMR human exposure limits, evaluation criteria, three SAR measurement methods and labeling requirements. This paper will detail the steps necessary for the approval of MPTE to the ACA EMR requirements. The EMR regulations and the SAR measurement methodologies will also be discussed.
{"title":"SAR testing and approval requirement for Australia","authors":"C. Zombolas","doi":"10.1109/ISEMC.2003.1236605","DOIUrl":"https://doi.org/10.1109/ISEMC.2003.1236605","url":null,"abstract":"Regulations limiting human exposure to radio frequency (RF) electromagnetic radiation (EMR) now exist in many countries. To legally market mobile and portable transmitting equipment (MPTE) in Australia, suppliers must comply with the provisions of the Australian Communications Authority (ACA) regulations on EMR and specific absorption rate (SAR). The regulatory arrangements include RF EMR human exposure limits, evaluation criteria, three SAR measurement methods and labeling requirements. This paper will detail the steps necessary for the approval of MPTE to the ACA EMR requirements. The EMR regulations and the SAR measurement methodologies will also be discussed.","PeriodicalId":359422,"journal":{"name":"2003 IEEE Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.03CH37446)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125190695","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}
Pub Date : 2003-10-14DOI: 10.1109/ISEMC.2003.1236601
Q. Zeng, A. Chubukjian
In this paper, we describe the results of a study carried out to evaluate the cumulative effects of devices using ultrawideband (UWB) technology upon the electromagnetic environment, specifically their contributions to the raising of the ambient levels. These effects have been quantified, and an electromagnetic compatibility (EMC) methodology developed to assess the interference potential of UWB devices with respect to conventional radiocommunications systems.
{"title":"Characterization of the cumulative effects of ultrawideband technology on the electromagnetic environment","authors":"Q. Zeng, A. Chubukjian","doi":"10.1109/ISEMC.2003.1236601","DOIUrl":"https://doi.org/10.1109/ISEMC.2003.1236601","url":null,"abstract":"In this paper, we describe the results of a study carried out to evaluate the cumulative effects of devices using ultrawideband (UWB) technology upon the electromagnetic environment, specifically their contributions to the raising of the ambient levels. These effects have been quantified, and an electromagnetic compatibility (EMC) methodology developed to assess the interference potential of UWB devices with respect to conventional radiocommunications systems.","PeriodicalId":359422,"journal":{"name":"2003 IEEE Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.03CH37446)","volume":"284 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126850636","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}
Pub Date : 2003-10-14DOI: 10.1109/ISEMC.2003.1236648
J. G. Kraemer
100BaseTX Ethernet is a popular method of high-speed data transfer using copper wire in the residential, commercial and industrial environments. Through proper circuit design and printed wiring board layout, IEEE 802.3 100BaseTX Ethernet systems can be made to comply with the applicable FCC Part 15 class B radiated emissions requirements and the European Union's radiated and conducted immunity EMI compliance requirements using unshielded twisted pair wiring. Because of the tremendous off-the-shelf availability of hardware and software, there are many advantages to using 100BaseTX Ethernet on defense/aerospace platforms to quickly and cost effectively increase system capability. This paper provides methods of determining expected emissions and immunity with respect to defense/aerospace equipment EMI requirements when 100BaseTX Ethernet is used with various cable/connector systems. Data and analysis are presented for cable/connector system that will allow various defense/aerospace EMI requirements to be met.
100BaseTX以太网是在住宅、商业和工业环境中使用铜线进行高速数据传输的一种流行方法。通过适当的电路设计和印刷布线板布局，可以使IEEE 802.3 100BaseTX以太网系统符合适用的FCC Part 15 B类辐射发射要求和使用非屏蔽双绞线的欧盟辐射和传导抗扰EMI合规要求。由于硬件和软件的大量现成可用性，在国防/航空航天平台上使用100BaseTX以太网有许多优点，可以快速且经济有效地增加系统能力。当100BaseTX以太网与各种电缆/连接器系统一起使用时，本文提供了确定国防/航空航天设备EMI要求的预期发射和抗扰度的方法。提出了电缆/连接器系统的数据和分析，该系统将允许满足各种国防/航空航天EMI要求。
{"title":"Selection of cables and connectors for 100BaseTX Ethernet for defense/aerospace environment EMI compliance","authors":"J. G. Kraemer","doi":"10.1109/ISEMC.2003.1236648","DOIUrl":"https://doi.org/10.1109/ISEMC.2003.1236648","url":null,"abstract":"100BaseTX Ethernet is a popular method of high-speed data transfer using copper wire in the residential, commercial and industrial environments. Through proper circuit design and printed wiring board layout, IEEE 802.3 100BaseTX Ethernet systems can be made to comply with the applicable FCC Part 15 class B radiated emissions requirements and the European Union's radiated and conducted immunity EMI compliance requirements using unshielded twisted pair wiring. Because of the tremendous off-the-shelf availability of hardware and software, there are many advantages to using 100BaseTX Ethernet on defense/aerospace platforms to quickly and cost effectively increase system capability. This paper provides methods of determining expected emissions and immunity with respect to defense/aerospace equipment EMI requirements when 100BaseTX Ethernet is used with various cable/connector systems. Data and analysis are presented for cable/connector system that will allow various defense/aerospace EMI requirements to be met.","PeriodicalId":359422,"journal":{"name":"2003 IEEE Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.03CH37446)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114344337","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}
Pub Date : 2003-10-14DOI: 10.1109/ISEMC.2003.1236671
Patrick K. Harris, Nce, Nathan F. Block
The MIL-STD-462 CS02 conducted susceptibility test setup includes an audio transformer, with the secondary used as an inductor, and a large capacitor. Together, these two components from an L-type low-pass filter to minimize the injected test signal input into the power source. Some flight hardware power input configurations are not compatible with this setup and break into oscillation when powered up. This, in turn, can damage flight hardware. Such as oscillation resulted in the catastrophic failure of an item tested in the Goddard Space Flight Center (GSFC) large electromagnetic compatibility (EMC) test facility.
{"title":"Potential damage to flight hardware from MIL-STD-462 CS02 setup","authors":"Patrick K. Harris, Nce, Nathan F. Block","doi":"10.1109/ISEMC.2003.1236671","DOIUrl":"https://doi.org/10.1109/ISEMC.2003.1236671","url":null,"abstract":"The MIL-STD-462 CS02 conducted susceptibility test setup includes an audio transformer, with the secondary used as an inductor, and a large capacitor. Together, these two components from an L-type low-pass filter to minimize the injected test signal input into the power source. Some flight hardware power input configurations are not compatible with this setup and break into oscillation when powered up. This, in turn, can damage flight hardware. Such as oscillation resulted in the catastrophic failure of an item tested in the Goddard Space Flight Center (GSFC) large electromagnetic compatibility (EMC) test facility.","PeriodicalId":359422,"journal":{"name":"2003 IEEE Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.03CH37446)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125557078","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}
Pub Date : 2003-10-14DOI: 10.1109/ISEMC.2003.1236649
G. Spadacini, D. Bellan, S. Pignari
In this paper, a novel circuit model for low-frequency crosstalk predictions in twisted-wire pairs (TWPs) is developed, that accounts for effects related to twist-pitch non-uniformity in length. It is shown that random fluctuations of the twist length may play a dominant role on crosstalk levels, depending on TWP load configuration. Crosstalk analytical predictions are validated against ad hoc experimental measurements and are confirmed by the outputs of a fully-numerical transmission line model. The proposed model overcomes limitations of previous models, based on the assumption of uniform twist-pitch and/or neglecting the line per-unit-length parameters, and it is valid in a wider frequency range.
{"title":"Impact of twist non-uniformity on crosstalk in twisted-wire pairs","authors":"G. Spadacini, D. Bellan, S. Pignari","doi":"10.1109/ISEMC.2003.1236649","DOIUrl":"https://doi.org/10.1109/ISEMC.2003.1236649","url":null,"abstract":"In this paper, a novel circuit model for low-frequency crosstalk predictions in twisted-wire pairs (TWPs) is developed, that accounts for effects related to twist-pitch non-uniformity in length. It is shown that random fluctuations of the twist length may play a dominant role on crosstalk levels, depending on TWP load configuration. Crosstalk analytical predictions are validated against ad hoc experimental measurements and are confirmed by the outputs of a fully-numerical transmission line model. The proposed model overcomes limitations of previous models, based on the assumption of uniform twist-pitch and/or neglecting the line per-unit-length parameters, and it is valid in a wider frequency range.","PeriodicalId":359422,"journal":{"name":"2003 IEEE Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.03CH37446)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134521640","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}
Pub Date : 2003-10-14DOI: 10.1109/ISEMC.2003.1236636
H. Sanchez, J. Carpio
This paper proposes a simple model, based on partial element equivalent circuit (PEEC) method, for evaluation of current distribution on cylindrical wires in frequency domain. Limitations of the application of the model are studied by comparison the results computed with other numerical techniques.
{"title":"Evaluation of current distribution on wires with a simple model based on PEEC method","authors":"H. Sanchez, J. Carpio","doi":"10.1109/ISEMC.2003.1236636","DOIUrl":"https://doi.org/10.1109/ISEMC.2003.1236636","url":null,"abstract":"This paper proposes a simple model, based on partial element equivalent circuit (PEEC) method, for evaluation of current distribution on cylindrical wires in frequency domain. Limitations of the application of the model are studied by comparison the results computed with other numerical techniques.","PeriodicalId":359422,"journal":{"name":"2003 IEEE Symposium on Electromagnetic Compatibility. Symposium Record (Cat. No.03CH37446)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2003-10-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133497336","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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