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Field characterisation of an aircraft sized TEM cell 飞机大小的TEM单元的场表征
2009 Electromagnetic Compatibility Symposium Adelaide Pub Date : 2009-12-08 DOI: 10.1109/EMCSA.2009.5349777
A. Walters, Tan Doan, C. Denton
{"title":"Field characterisation of an aircraft sized TEM cell","authors":"A. Walters, Tan Doan, C. Denton","doi":"10.1109/EMCSA.2009.5349777","DOIUrl":"https://doi.org/10.1109/EMCSA.2009.5349777","url":null,"abstract":"DSTO conducts research into novel approaches for aircraft HIRF (High Intensity Radiated Fields) testing with recent work focused on testing at frequencies below 30 MHz. A 30 m × 11 m × 6 m reverberation chamber, developed as part of our research program, has been modified to incorporate a TEM (Transverse electromagnetic) mode of operation, with a 20 m × 6 m septum as the major component. The ultimate aim is to provide continuity in the available testing frequencies between the TEM and reverberation modes of operation. A validated computational model of the system has been used to investigate the uniformity of the electric field and the power requirements as a function of frequency. Results indicate that below 15 MHz, where pure TEM modes of operation are achievable, field variations of no more than 6 dB are observed over the volume occupied by a representative EUT (equipment under test). In addition, the power required to achieve a field strength of 200 V/m is of the order of 20 kW. Also discussed in this paper, is that at resonant frequencies within the chamber, the situation becomes uncertain and requires further investigation.","PeriodicalId":129073,"journal":{"name":"2009 Electromagnetic Compatibility Symposium Adelaide","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134516150","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
EMC considerations in deployment of RFID systems RFID系统部署中的EMC考虑
2009 Electromagnetic Compatibility Symposium Adelaide Pub Date : 2009-12-08 DOI: 10.1109/EMCSA.2009.5349778
B. Jamali, B. Bates
{"title":"EMC considerations in deployment of RFID systems","authors":"B. Jamali, B. Bates","doi":"10.1109/EMCSA.2009.5349778","DOIUrl":"https://doi.org/10.1109/EMCSA.2009.5349778","url":null,"abstract":"Radio frequency identification (RFID) systems are part of modern life. They are revolutionizing the way companies run their businesses, cars pay tolls and employees access an office in a building. RFID devices are also making their way quickly into other industries including health care where they are used in remote of monitoring equipment, as tiny chips that identify items in inventory, or are even embedded in surgical sponges for tracking during an operation. Although in many regions RFID regulations are very strict and operators must adhere to the standard, the unpredictable environmental effects on radio propagation can change the way that these devices operate. This paper offers a review of important EMC information relevant to RFID system deployment. It also examines the sources of error in simulations reported in some other publications.","PeriodicalId":129073,"journal":{"name":"2009 Electromagnetic Compatibility Symposium Adelaide","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131722619","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
Evolution of the military munitions RF environment 军用弹药射频环境的演变
2009 Electromagnetic Compatibility Symposium Adelaide Pub Date : 2009-12-08 DOI: 10.1109/EMCSA.2009.5349781
Barry T Lock
{"title":"Evolution of the military munitions RF environment","authors":"Barry T Lock","doi":"10.1109/EMCSA.2009.5349781","DOIUrl":"https://doi.org/10.1109/EMCSA.2009.5349781","url":null,"abstract":"With the increase in joint and combined operations, the decrease in the military spectrum and the increase use of mobile communication, the specified RF environment over the years has evolved especially in respect to the effect on ordnance safety. The presentation identifies these changes and some of the incidents that have triggered reviews since 1964 to the present day with the publication of the NATO AECTP 258 February 2009. It will provide the rationale that nations have used to determine their RF environment and how a worst case approach was formulated.","PeriodicalId":129073,"journal":{"name":"2009 Electromagnetic Compatibility Symposium Adelaide","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123077253","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
Considerations on a hybrid TEM-reverberation chamber 混合tem -混响室的考虑
2009 Electromagnetic Compatibility Symposium Adelaide Pub Date : 2009-12-08 DOI: 10.1109/EMCSA.2009.5349774
P. Kay
{"title":"Considerations on a hybrid TEM-reverberation chamber","authors":"P. Kay","doi":"10.1109/EMCSA.2009.5349774","DOIUrl":"https://doi.org/10.1109/EMCSA.2009.5349774","url":null,"abstract":"The idea of a hybrid TEM-reverberation chamber for electromagnetic immunity testing holds some appeal, because of the potential to make efficient use of RF power in producing the test electromagnetic fields. In this paper, the proposed hybrid chamber consists of an asymmetric TEM cell with a C-section stirrer fitted between the septum and the shell. Method of Moments modelling is applied to determining the field characteristics in the chamber as the stirrer rotates. This demands analysis of many data sets that represent the field parameters of the system for many discrete stirrer positions. A novel technique for analysis and visualisation of the data is described and its application to the system under investigation is demonstrated.","PeriodicalId":129073,"journal":{"name":"2009 Electromagnetic Compatibility Symposium Adelaide","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122418871","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
Upgraded EMC modelling of dual die structure 升级了双模结构的EMC建模
2009 Electromagnetic Compatibility Symposium Adelaide Pub Date : 2009-12-08 DOI: 10.1109/EMCSA.2009.5349765
Boyuan Zhu, Junwei Lu, S. Stegen, E. Li
{"title":"Upgraded EMC modelling of dual die structure","authors":"Boyuan Zhu, Junwei Lu, S. Stegen, E. Li","doi":"10.1109/EMCSA.2009.5349765","DOIUrl":"https://doi.org/10.1109/EMCSA.2009.5349765","url":null,"abstract":"Due to the variety of internal structures applied in different processors, EMC modelling should also be upgraded correspondingly. This paper presents an upgraded EMC simulation model of dual die structure which is originated from the IEEE electromagnetic challenging problem 2000–4 for conventional CPU with heatsink. The simulation results are verified by measurement with a fabricated model. Furthermore, a consequent benchmark will be provided.","PeriodicalId":129073,"journal":{"name":"2009 Electromagnetic Compatibility Symposium Adelaide","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121107395","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 of PC to electromagnetic interference PC机对电磁干扰的敏感性
2009 Electromagnetic Compatibility Symposium Adelaide Pub Date : 2009-12-08 DOI: 10.1109/EMCSA.2009.5349776
Piotrowski
{"title":"Susceptibility of PC to electromagnetic interference","authors":"Piotrowski","doi":"10.1109/EMCSA.2009.5349776","DOIUrl":"https://doi.org/10.1109/EMCSA.2009.5349776","url":null,"abstract":"In this paper a generic susceptibility model of a Personal Computer (PC) was derived using generic coupling characteristics. Coupling of interference through cables, enclosure, apertures, and directly to a circuit board were considered. Using experimental upset data for digital semiconductor components electric field intensities were calculated for an unshielded PC board and a typical PC. The obtained results show the envelope of electric field intensities at which a PC is susceptible with the minimum and maximum margins. A typical PC can be upset with an electric field strength of 48V/m, whereas an unshielded PC board requires about 9V/m. A typical PC is most susceptible at frequency ranges 3–500MHz and 700–1500MHz.","PeriodicalId":129073,"journal":{"name":"2009 Electromagnetic Compatibility Symposium Adelaide","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127873555","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
Efficient voltage/current spike reduction by Active Gate Signaling 通过有源门信号有效降低电压/电流尖峰
2009 Electromagnetic Compatibility Symposium Adelaide Pub Date : 2009-12-08 DOI: 10.1109/EMCSA.2009.5349775
A. A. Boora, Firuz Zare, A. Ghosh
{"title":"Efficient voltage/current spike reduction by Active Gate Signaling","authors":"A. A. Boora, Firuz Zare, A. Ghosh","doi":"10.1109/EMCSA.2009.5349775","DOIUrl":"https://doi.org/10.1109/EMCSA.2009.5349775","url":null,"abstract":"This paper presents an Active Gate Signaling scheme to reduce voltage/current spikes across insulated gate power switches in hard switching power electronic circuits. Voltage and/or current spikes may cause EMI noise. In addition, they increase voltage/current stress on the switch. Traditionally, a higher gate resistance is chosen to reduce voltage/current spikes. Since the switching loss will increase remarkably, an active gate voltage control scheme is developed to improve efficiency of hard switching circuits while the undesirable voltage and/or current spikes are minimized.","PeriodicalId":129073,"journal":{"name":"2009 Electromagnetic Compatibility Symposium Adelaide","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130285782","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: 5
Antenna gain measurements in the V-band: A single-antenna method v波段天线增益测量:单天线方法
2009 Electromagnetic Compatibility Symposium Adelaide Pub Date : 2009-12-08 DOI: 10.1109/EMCSA.2009.5349768
G. Felic
{"title":"Antenna gain measurements in the V-band: A single-antenna method","authors":"G. Felic","doi":"10.1109/EMCSA.2009.5349768","DOIUrl":"https://doi.org/10.1109/EMCSA.2009.5349768","url":null,"abstract":"In this paper, a single-antenna gain measurement technique in the V-band is presented. The technique is simple and inexpensive as it uses standard antenna measurement equipment and it does not require antenna range calibration procedure. To the author's knowledge, this is the first millimeter wave antenna gain measurement presented that uses single-antenna method.","PeriodicalId":129073,"journal":{"name":"2009 Electromagnetic Compatibility Symposium Adelaide","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130440516","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: 5
EMC assessment of lighting systems 照明系统电磁兼容评定
2009 Electromagnetic Compatibility Symposium Adelaide Pub Date : 2009-12-08 DOI: 10.1109/EMCSA.2009.5349773
Z. Žegarac, F. Schlagenhaufer
{"title":"EMC assessment of lighting systems","authors":"Z. Žegarac, F. Schlagenhaufer","doi":"10.1109/EMCSA.2009.5349773","DOIUrl":"https://doi.org/10.1109/EMCSA.2009.5349773","url":null,"abstract":"Lighting systems are omnipresent and their electrical and electronic components become increasingly complex — thus their interference potential also increases and needs to be carefully assessed. This paper looks at a luminaire from a network point of view, describing the wiring and geometry of the gear tray as an N-port network, and critical components as excitation and load for that network. The aim is to find a characterisation that is more suitable to predict the electromagnetic behaviour in an actual installation than is currently possible, when measuring the emission only under defined, but artificial conditions.","PeriodicalId":129073,"journal":{"name":"2009 Electromagnetic Compatibility Symposium Adelaide","volume":"56 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124392052","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
Characterisation of electromagnetic properties of carbon fibre composite materials 碳纤维复合材料电磁性能的表征
2009 Electromagnetic Compatibility Symposium Adelaide Pub Date : 2009-12-08 DOI: 10.1109/EMCSA.2009.5349771
Tan Doan, A. Walters, C. Leat
{"title":"Characterisation of electromagnetic properties of carbon fibre composite materials","authors":"Tan Doan, A. Walters, C. Leat","doi":"10.1109/EMCSA.2009.5349771","DOIUrl":"https://doi.org/10.1109/EMCSA.2009.5349771","url":null,"abstract":"A method for characterising the electromagnetic properties of woven carbon fibre composite (CFC) materials at HF was investigated. The method made use of two loop antennas and a Vector Network Analyser (VNA) to measure the scattering parameters (S21) of varying layers of carbon fibre. Computational Electromagnetic (CEM) modelling of the experimental setup together with a DC surface resistance approximation was then used to match the electromagnetic behaviour. This was achieved by calculating S21 for a range of surface resistance values. A fit between the measured and modelled S21 curves was used to identify the most representative DC surface resistance value for a particular CFC construction which could then be used in models of larger structures. The method showed utility for CFC samples of 2 and 4 layers. However, a 6 layer case demonstrated the technique's limitation at frequencies approaching 30 MHz.","PeriodicalId":129073,"journal":{"name":"2009 Electromagnetic Compatibility Symposium Adelaide","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128226978","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: 5
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