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# 1997 Proceedings of International Symposium on Electromagnetic Compatibility

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Displaying Results 1 - 25 of 135
• ### Proceedings of International Symposium on Electromagnetic Compatibility

Publication Year: 1997
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• ### Author's index

Publication Year: 1997, Page(s):1 - 3
| PDF (175 KB)
• ### Highly sensitive humidity sensor for dielectric measurement (water absorption) in glass-fiber resins

Publication Year: 1997, Page(s):150 - 153
| | PDF (296 KB)

A humidity sensor using a sensitive capacitive-dependent crystal is described. Presented is the probe sensitivity (dependence of df on the dCx). In addition, the idea of excitation of the entire humidity sensor with stochastic test signals is described and the humidity surface-measuring method is given. It includes the influence of test signals on the weighting function uncertainty and on the A/D-... View full abstract»

• ### Computation and measurement of electrical interference effects in aqueducts due to a nearby parallel transmission line

Publication Year: 1997, Page(s):409 - 412
Cited by:  Papers (3)
| | PDF (376 KB)

A study has been conducted to determine the electromagnetic interference effects in aqueducts which are parallel to a nearby transmission line. A mitigation system has been designed to reduce these interference levels. Field measurements have been carried out to verify the computed electromagnetic interference levels in the aqueducts during steady-state and fault conditions with mitigation install... View full abstract»

• ### The current status of the IEC 1000-4-X Basic EMC Standards

Publication Year: 1997, Page(s):64 - 67
| | PDF (276 KB)

To many manufacturers, the IEC 1000-4-X series of Basic EMC Standards seems to be constantly changing. Manufacturers are concerned about pending changes to test standards which may require the purchase of new simulators, modifications of test facilities, or re-writing test plans and procedures. This paper outlines the operation of the task forces and working groups responsible for developing new 1... View full abstract»

• ### The use of detectors instead power meters: a simple and cheap option in microwave measurements

Publication Year: 1997, Page(s):274 - 276
| | PDF (196 KB)

In this article, the use of microwave detectors (Schottky diodes) instead power meters is suggested. With this simple substitution, microwave measurements may become an easier and cheaper process. The detector specifications are described. In order to exemplify the proposed substitution, experimental results are presented and, when compared to numerical ones, a good agreement is observed. The dete... View full abstract»

• ### Antenna model for EMI evaluation

Publication Year: 1997, Page(s):146 - 149
| | PDF (232 KB)

This paper provides some approximate methods of antenna gain calculation which are often met under several conditions in EMI evaluation. It also tests and verifies these methods, so ensuring their effective properties and operational properties in EMI evaluation View full abstract»

• ### Mathematical model of predicting power frequency electric field round the corner of high voltage transmission lines

Publication Year: 1997, Page(s):405 - 408
| | PDF (224 KB)

The mathematical model of predicting power frequency (PF) electric field round the corner of high voltage transmission lines and the calculating methods of potential and field strength were introduced in this paper. The deduced formulas were symmetrical which were convenient for the calculation. The results of calculation and measurement were identical in the main View full abstract»

• ### Some aspects concerning the international and Russian EMC standardization in the field of radio communication

Publication Year: 1997, Page(s):60 - 63
| | PDF (336 KB)

EMC standards in field of radio communication exist at both the national and international level. Due to the rapid integration process in the world economy, a continuous improvement of these standards in agreement with international requirements is necessary, taking sometimes into account some national specificities. The paper presents some similarities and differences between the existing Russian... View full abstract»

• ### Measurement uncertainty in EMI emission measurements

Publication Year: 1997, Page(s):270 - 273
Cited by:  Papers (2)
| | PDF (380 KB)

The paper describes the present trend in international standardization regarding the EMC measurement uncertainty. It gives a basis for the calculation of an uncertainty budget with an example and some practical guidelines for the reduction of emission measurement uncertainty View full abstract»

• ### Practical guide to large system SE (shielding effectiveness) test

Publication Year: 1997, Page(s):90 - 93
| | PDF (268 KB)

SE testing is rather straight forward when testing one variable at a time, but the complexity multiplies when several variables are involved as a single entity such as the exterior cover system of a large scale computer. This paper describes the processes and problems associated with preparing and performing SE tests on large systems View full abstract»

• ### Fast channel assignment in irregular radio systems

Publication Year: 1997, Page(s):426 - 429
| | PDF (332 KB)

A method is presented for channel assignment in irregular radio systems, based on the notion of spectral blocks'. It combines speed with the potential to produce more spectrally efficient assignments than previously published algorithms. It could also be used for dynamic channel assignment in personal communications networks View full abstract»

• ### Absorbing materials optimization on characteristic parameters

Publication Year: 1997, Page(s):509 - 511
| | PDF (128 KB)

Many mathematical methods have been used in absorbing materials optimization on characteristic parameters, but none is efficient all the time. We believe that before optimization a thorough study of the object function should be done. We analyzed the characteristics of this object function, and drew some useful conclusions for the absorbing materials' parameter optimization. These conclusions are ... View full abstract»

• ### Assessing how safe are the rural tin-shed houses in the vicinity of EM fields of the cross-country power lines

Publication Year: 1997, Page(s):401 - 404
| | PDF (320 KB)

High voltage grid lines are mostly routed through rural areas. In the countries with high population densities it is difficult to keep the rural houses very far from the lines' routes. For low cost the dwelling houses of the rural people in Bangladesh and a number of Asian countries are usually roofed with thin, galvanized and corrugated steel sheets termed tin'. An analysis of the electromagneti... View full abstract»

• ### Electromagnetic scattering from multiple slots in thick conducting screen terminated by a common load

Publication Year: 1997, Page(s):459 - 462
| | PDF (276 KB)

This paper considers a type of problem in which there are multiple slots in a thick conducting screen, and they are terminated with a common microwave network. The theoretical results are given View full abstract»

Publication Year: 1997, Page(s):57 - 59
| | PDF (208 KB)

This paper introduces the interference and immunity characteristics of broadcast receivers as well as test methods of harmonic current emissions injected into the power supply interference by broadcast receivers and associated equipment View full abstract»

• ### The study on electromagnetic noise of satellite ground station

Publication Year: 1997, Page(s):320 - 323
| | PDF (244 KB)

During the design of a satellite ground station, a large number of calculation formulas and complicated procedures may be involved, which causes unreasonable performance and price ratio and great waste. The authors of this paper, having comprehensively studied the link formulas and some engineering experiences on satellite receiving, and through strict mathematic deductions, have set up a new math... View full abstract»

• ### TEM horn antenna for the time domain shielding effectiveness measurement

Publication Year: 1997, Page(s):265 - 269
Cited by:  Papers (3)  |  Patents (5)
| | PDF (276 KB)

The design and construction of a TEM horn antenna to be used for the time domain measurement of the shielding effectiveness of materials is described and measurement results of its characteristics in time domain and frequency domain using the two-antenna method are compared. The constructed TEM horn has the bandwidth of above 2 GHz View full abstract»

• ### Electromagnetic environment of an automobile controlled by computer and raising reliability measure

Publication Year: 1997, Page(s):175 - 178
Cited by:  Papers (1)
| | PDF (248 KB)

Automotive electromagnetic environments are analysed. In view of the reliability designs, for instance, in the entirety, hardware and software, etc., the paper focuses on a description of the reliability measures of automotive microcomputer control systems View full abstract»

• ### EMI shielding-common problems and containment strategies

Publication Year: 1997, Page(s):86 - 89
Cited by:  Patents (2)
| | PDF (344 KB)

This discussion focuses on the sources and containment strategies for EMI. The operation of all electrical and electronic devices involves the changing of voltage or current levels either intermittently or continuously, sometimes at very fast rates. This results in the development of electro-magnetic energy at discrete frequencies as well as over frequency bands. The circuit will radiate this ener... View full abstract»

• ### Spectrum management and electromagnetic compatibility for today's communication

Publication Year: 1997, Page(s):421 - 425
Cited by:  Papers (1)
| | PDF (348 KB)

This paper illustrates the importance of spectrum management which is closely related to the emerging technology. As devices of an electronic and electromagnetic nature grow in complexity, the capability of EMC is already of profound importance and will increase as we rely more and more upon technology. The article introduces some new work carried out in China, points out that CDMA will be the adv... View full abstract»

• ### Analysis of multiband electromagnetic shielding effectiveness

Publication Year: 1997, Page(s):98 - 101
| | PDF (228 KB)

The application of transmission-line modeling (TLM) in electromagnetic shielding effectiveness (SE), which developed the plane-wave shielding theory, was described to single-layered and multilayered media. For application of design, the basic expressions of SE were presented with general parameters, which being use to calculate SE of a multilayered media and even to calculate SE with multiband for... View full abstract»

• ### Large scale computing system EMI test philosophy

Publication Year: 1997, Page(s):1 - 4
| | PDF (284 KB)

The purpose of the paper is to discuss the testing philosophy of large system EMI testing and some of the methods used to reduce the test logistics and complexity; it is also for Regulatory Agents to consider when writing up EMC rules. Actual test data are given to substantiate the rationales behind the test methods View full abstract»

• ### IC models for the simulation of the emission radiated from PCB

Publication Year: 1997, Page(s):352 - 355
Cited by:  Papers (1)
| | PDF (224 KB)

The authors are developing the technology that can simulate normal-mode emission radiated from printed circuit boards. We describe the driver and the receiver IC models which are needed to simulate radiated emission. We have derived the driver and the receiver IC models. The validity of these models was confirmed by comparing measured data with the results of the simulation View full abstract»

• ### Directional antennas standardization

Publication Year: 1997, Page(s):142 - 145
| | PDF (388 KB)

In the literature and internationally accepted standardization procedures the problem of directional antennas standardization in the frequency range below 1 GHz still has not been satisfactorily solved. The applicability of a typical standard receiving antenna method for this purpose is being considered. It is proven that the method can be applied directly or its accuracy could be increased by rel... View full abstract»