WORKING GROUP 2: COUPLING OF COMPLEX OR DISTRIBUTED SYSTEMS TO INTERFERENCE SOURCES OR VICTIMS

Chair: Prof M Ianoz, Switzerland

PROJECT CENSUS RETURNS

FOR COST 261 MANAGEMENT COMMITTEE





(Main WG2) CH2 : Prof Michel Ianoz, Power Systems Laboratory, Swiss Federal Institute of Technology, EPFL-DE-LRE, CH-1015 Lausanne, Switzerland

PARTNERS

Radio Research & Development Institute (NIIR), Moscow.

TITLE OF THE PROJECT

Field-to-transmission line coupling models

INVESTIGATOR’S NAME

Dr. F. Rachidi, Swiss Federal Institute of Technology, Lausanne, Switzerland

Dr. S. Tkatchenko, Radio Research&Development Institute (NIIR), Moscow, Russia

Prof. M. Ianoz, Swiss Federal Institute of Technology, Lausanne, Switzerland

PROJECT START&END DATES : Start : 28.02.95

TOTAL FUNDING : During 95 – 99 this project was partially supported by a European INTAS program with a funding of 7'000 ECUS. From 01.01.00 : 10% of a senior scientist, i.e. 7.5 kEUROS/year.

BRIEF DESCRIPTION

An iterative approach based on the perturbation theory has been developed to solve the field-to-transmission line coupling equations. Keeping the advantages of the Transmission Line Approximation, i.e. the possibility to calculate the coupling to long lines, the iterative approach permits to obtain very similar results to those given by the more exact scattering theory. The iterative procedure converges rapidly (one or two iterations) to the exact analytical solution for a line of infinite length and to the NEC solution (scattering theory), for a line of finite length. An approach to generalize the method to more complex terminations has been proposed and the feasibility of such an approach, in which the integral equation is to be solved only over a reduced region at the two line extremities has been demonstrated.
 
 

(Main WG2) CH4 : Prof Michel Ianoz, Power Systems Laboratory, Swiss Federal Institute of Technology, EPFL-DE-LRE, CH-1015 Lausanne, Switzerland

PARTNERS

MIRA ; DERA, Ford (UK), Aérospatiale, ONERA, CETIM (France), Hevrox (Belgium), Volvo (Sweden)

TITLE OF THE PROJECT

Guidelines for EMC Modeling for Automotive Requirements (GEMCAR)

INVESTIGATOR’S NAME

Prof. M. Ianoz, Dr. F. Rachidi, Mr. E. Petrache,A. Rubinstein, Ph.D. students, Swiss Federal Institute of Technology, Lausanne, Switzerland

PROJECT START&END DATES : Start : 1.10.00 – End : 31.12.03

TOTAL FUNDING : 250 kEUROS from the Fedral Office for Education&Science (Switzerland) funding the European projects for Switzerland.

BRIEF DESCRIPTION : Development of a comprehensive set of guidelines for practical electromagnetic modeling in automotive applications based on detailed validation of numerical models by comparison of model results and measurements on real vehicles. Three levels of complexity, body shell, body with main components and a complete vehicle will be considered. The same levels will be used to investigate the wiring harness. The modeling will use existing numerical 3D or 2D codes and the measurements will be performed in anechoic chambers or using EMP simulators.

(Main WG2) CH5 Prof Michel Ianoz, Power Systems Laboratory, Swiss Federal Institute of Technology, EPFL-DE-LRE, CH-1015 Lausanne, Switzerland

PARTNERS

Alcatel

TITLE OF THE PROJECT

EM disturbances on dc power supply lines for long distance fiber optic links

INVESTIGATOR’S NAME

Prof. M. Ianoz, Dr. F. Rachidi, Dr. E. Selina, Dr. P. Zweiacker, Swiss Federal Institute of Technology, Lausanne, Switzerland

PROJECT START&END DATES : Start : 1.01.00 – End : 30.11.00

TOTAL FUNDING : 65 kEUROS

BRIEF DESCRIPTION

DC power supply for the repeaters of long distance submarine fiber optic links run very often parallel on the terrestrial part of the supply line to HV power cables in an industrial environment. Disturbances at the network 50 Hz frequency or at higher frequencies are induced on this dc supply due to mutual coupling between the HV power cables in normal or short-circuit fault regime. Another cause of disturbances can be own resonances of the supply line due to the particular circuit of the repeater. The aim of the study is to determine the disturbance causes by comparing modeling results to measurements on real installations and to propose mitigation methods.
 
 
 
 
 
 
 
 
 
 

(Main. WG2 & WG1) D1 : Dr.-Ing. Bernhard Scholl,BMW, Dept.: EE-11, Forschungs- und Ingenieurzentrum, Knorrstrasse 147, 80788 Munchen,

Tel. 089/38244355 Fax. 089/38244563, email: bernhard.scholl@bmw.de

TITLE OF PROJECT

AutoEMC: EMC simulation for automotive applications

INVESTIGATORS’ NAMES

Analogy, BMW, ESI, Fiat, Politecnico Turin, Renault

PROJECT START & END DATES 1. Feb. 98 - 1. Feb. 2000

TOTAL FUNDING 1976 kECU

BRIEF DESCRIPTION

The objective of this project is to develop and validate a complete chain of computer simulation methods and tools for predictive automotive simulation in Electromagnetic Compatibility (EMC).

The expected achievements:

COLLABORATION DETAILS IF ANY (PARTNERS, PROJECT TITLE ETC.)

(Main. WG2) D2 : Prof H Garbe, University of Hannover, GERMANY

TITLE OF PROJECT

High Speed Data Communication on Shielded or Unshielded Twisted Pair Lines

INVESTIGATORS’ NAMES

Prof. Dr. Heyno Garbe, Dipl.-Ing. Axel Knobloch - email knobloch@gem1.uni.hannover.de

University of Hannover

Germany

PROJECT START & END DATES 01.10.1997 - 30.09.2001

TOTAL FUNDING

BRIEF DESCRIPTION

The increasing data transmission rate exceeds the required frequency range. For example ISDN Uk0 needs a frequency range up to 180 kHz. To fulfill the EMC requirements given for example by EN 50 173 it is now necessary to take all electromagnetic field effects into account. Within this project first we want to describe the electromagnetic effects of the different high speed data services, second we want to look for the new coupling paths and at last the immunity of the different coding systems has to be discussed.

COLLABORATION DETAILS IF ANY (PARTNERS, PROJECT TITLE ETC.)
 
 

(Main. WG2) D4 : Leader: H.Haase, Prof. Dr. Juergen Nitsch,University of Magdeburg,

PO Box 4120, D-39016 Magdeburg, Germany e-mail: juergen.nitsch@et.uni-magdeburg.de

TITLE OF PROJECT

Field coupling into nonuniform multiconductor transmission lines (NMTL)

INVESTIGATORS’ NAMES

H. Haase

PROJECT START & END DATES Start: December 1998 - 2001

TOTAL FUNDING Not applicable

BRIEF DESCRIPTION

Transmission lines, as an integral part of electric systems, have a non-negligible influence to the noise immunity and emission of these systems. The objective is to investigate the effects of electromagnetic field coupling into the transmission lines. Especially nonuniform multiconductor transmission lines are under consideration.

Analytical (telegraphers equation) as well as numerical methods (e.g. PEEC) will be used to determine the noise level caused by external electromagnetic fields.

Furthermore the results will be verified with measured data from real systems.

COLLABORATION DETAILS IF ANY (PARTNERS, PROJECT TITLE ETC.)

University of Federal Armed Forces Hamburg, Technical University Hamburg-Harburg, Technical University Braunschweig, University Hannover

(Main. WG2) D7 : Leader: T. Steinmetz, Prof. Dr. Juergen Nitsch,University of Magdeburg, PO Box 4120, D-39016 Magdeburg, Germany e-mail: juergen.nitsch@et.uni-magdeburg.de

TITLE OF PROJECT

Numerical modelling and simulation of complex technical systems by means of electromagnetic topology and emphasis on the theory of multiconductor transmission lines

INVESTIGATORS’ NAMES

T. Steinmetz

PROJECT START & END DATES Start: 01.10.1998 - 2001

TOTAL FUNDING Not applicable

BRIEF DESCRIPTION

Subject of this project is the electromagnetic compatibility of complex technical systems like an aircraft or a car with special focus on the wiring. This is achieved by the choice of privileged paths of energy penetration into the whole system under consideration. The examined system is then transformed to a formal representation as a topological network described by the BLT-equation. Starting from this equation for uniform multiconductor transmission line networks and its numerical implementation in CRIPTE, a new implementation of a general propagation equation for nonuniform transmission lines will be developed. This will include both numerical and analytical ansaetze.

COLLABORATION DETAILS IF ANY (PARTNERS, PROJECT TITLE ETC.)

ONERA, DEMR/CEM, France

ESI Group, France

Technical University of Hamburg-Harburg

(Main. WG2) GR1 : Prof C Capsalis, National Technical University of Athens, GREECE

PARTNER

National Technical University of Athens

PROJECT TITLE

Study of EMC/EMI Problems in Transmission Line Structures

INVESTIGATORS’ NAMES

C.Capsalis, Professor

P.Trakadas, Post-Graduate Student

PROJECT START AND END Start Date: 4/1/99- End Date: 31/12/02

TOTAL FUNDING 11000000 GDR (~33000 ECU)

BRIEF DESCRIPTION

The Multi-Conductor Transmission Line behavior in the presence of an electromagnetic field is one of the most important aspects in EMC/EMI studies. Also, the interference between printed circuit boards is under investigation.

The progress observed in the recent years in the architecture of such systems and the emission and immunity limits put by European Committees in order to protect the smooth operation of electronic and electrical devices, led into a fundamental issue: how close can the transmission lines be in order to make a system faster but simultaneously not affecting its operation?

The aim of this project is to study both in theoretical and practical basis the problems arising in such structures, including near-field approach, experimental results and statistical behavior that can be used for manufacturing purposes.
 
 

(Main. WG 2 & WG1) GR2 : Prof C J Georgopoulos, University of Patras, GREECE

PARTNER University of Patras

PROJECT TITLE

Study of EMC Emission/Immunity Problems in Optoelectronics Systems

INVESTGATORS’ NAME: Dr. Chris Georgopoulos

PROJECT START AND END Start date: 4/1/99—End date: 31/12/2002

TOTAL FUNDING 11000000 GDR (33000 EURO)

BRIEF DESCRIPTION

Current Optoelectronic and Photonic technologies are at the point where their integration into large-scale multistage interconnect architectures is both feasible and beneficial in order to reduce the comlexity and increase the throughput of each switching node.In order to achieve these it is very important to the designer to be familiar with possible interference problems in such installations.

Since an electronic interface is used to modulate the signal carrier in an optoelectroic device, circuit or system, it is possibe for interference phenomena to disrupt the operation.

Intereference phenomena have been observed in optoelectronic, acousto-optic or magneto-optic systems commonly used in industrial commerical or military applications.

The aim of this project is to study such phenomena and analyse their effects on large optoelectronic (photonic) systems.
 
 
 
 

(Main. WG2 & WG1) I2 : Prof. Flavio Canavero, Politecnico di Torino, ITALY

TITLE OF PROJECT

AUTO-EMC: Electromagnetic Compatibility Simulation for Automotive

applications

(Brite Euram)

INVESTIGATORS' NAMES

Prof. Flavio CANAVERO, ing. Stefano SALIO, ing. Riccardo FANTINO

PROJECT START & END DATES 1st February 1998 to 31st January 2000

TOTAL FUNDING 1065700 ECU TOTAL

157200 ECU to Politecnico di Torino

BRIEF DESCRIPTION

The main achievement of the project is the validation and demonstration of an EMC predictive simulation capability:

- on industrially representative full car size problems from several car

manufacturers;

- integrated in the design loop (CAD) allowing concurrent engineering.

Additional achievements include simulation methodologies allowing efficient design without knowing certain information, which are known too late in the design cycle (i.e. details about the harness cable bundle, exact location of the wires, random twisting of the wires, etc.). Finally the project contribute to emerging standards in EMC field.

COLLABORATION DETAILS IF ANY (PARTNERS, PROJECT TITLE ETC.)

- Engineering System International SA (France), - Centro Ricerche FIAT S.p.A. (Italy),

- GIE Renault Recherche et Innovation (France), - Analogy Ltd (United Kingdom)

- Politecnico di Torino (Italy), - BMW (Germany)
 
 

(Main. WG2) I3: Dr. Renato Cicchetti, University of Rome "La Sapienza", ITALY

TITLE OF PROJECT

"Prediction Models for Electromagnetic Interferences in Airport

Environment"

Investigators:

Prof. Paolo Bernardi, Univ. of Rome "La Sapienza", Italy

Prof. Fernando Blasi, Univ. of Rome "La Sapienza", Italy

Prof. Renato Cicchetti, Univ. of Rome "La Sapienza", Italy

Dr. Testa Orlandino, Univ. of Rome "La Sapienza", Italy

Project Start & End Date: 1999-2001

Total Funding: 135.000 EURO

Description

The aim of the research is to develop prediction models useful to

evaluate EMC/EMI problems in airport environment where a multitude

of electromagnetic system is called to operate within a high complexity

area. To this purpose, a preliminary classification of the electromagnetic

sources (location, spatial distribution, spectrum of emission, etc.),

working within the different airport areas, will be performed and the

prediction models useful to evaluate the corresponding field distributions

will be identified. The developed models will be also useful to optimize

the location of the radio sources and to define the exposure conditions

for people working in the environment.

(Main. WG2) PL1 : Mr T Wieckowski, Technical University of Wroclaw, Poland

TITLE OF PROJECT

EMC Analysis between Satellite and Aeronautical Systems

INVESTIGATORS’ NAMES

Daniel J Bem, Maciej J. Grzybkowski, Tadeusz W. Wieckowski,Ryszard J. Zielinski,

Zbigniew Józkiewicz, Jacek SkrzypczyDski

PROJECT START & END DATES Start January 1999. End December 2002

TOTAL FUNDING 405 000 PLN (Polish Zloty)

BRIEF DESCRIPTION

With the ever increasing use of Very Small Aperture Terminals (VSAT) and Satellite News Gathering Transportable Earth Stations (SNG TES) there is an urgent need to define the potential risk of interference to aircraft passing through the main beams of such stations. This problem was raised in ERC during October 1996 meeting and administrations were encouraged to contact their national Civil Aviation Authority to get information on this subject. Except for Denmark no other Administrations have taken measures as to limit the use of SNG and VSAT terminals in close proximity to airports and glide paths.

The aim of the project is to provide an analysis of the risk of interference resulting from aircraft exposure to the main beam of a Satellite Earth Station (SES) and propose procedures to assure safety coexistence between satellite earth stations and aircraft airborne navigation and communication systems..

COLLABORATION DETAILS IF ANY (PARTNERS, PROJECT TITLE ETC.)

National Radiocommunications Agency PAR, Warsaw, Poland

(Main. WG2) ROM9 : Dr. A Marinescu, ICMET, Craiova, ROMANIA

TITLE OF PROJECT

Mitigation of Electromagnetic Pollution generated by HV Electric Power and Traction Equipment

INVESTIGATORS’ NAMES:

A. Marinescu, P. Nicoleanu, G. Mihai, F. Urzica from ICMET Craiova

PROJECT START & END DATES: 1996 - 2000

TOTAL FUNDING: 85,000 USD from which 25,000(1999)

BRIEF DESCRIPTION:

- numerical simulation of disturbance transmission between winding in power and

instrument transformers;

- experiments and numerical model validation;

- technical solutions to reduce the disturbances transmitted in HV and MV

electric power substations;

- implementation of electromagnetic disturbance measuring technique in HV

substations;

- simulation of electric traction equipment drives related to electromagnetic

disturbance. Disturbance coupling paths;

- experiments performed in laboratory and on rolling stock;

- implementation of disturbance mitigation techniques.

COLLABORATION DETAILS:

Electroputere Company Craiova,Romanian Railway Company, CONEL S.A.
 
 
 
 
 
 

(Main. WG2) UK2 : Prof P Excell, University of Bradford, UK

TITLE OF PROJECT

Hybrid MoM/FDTD Field Computation Method

INVESTIGATORS' NAMES

P.S. Excell, R.A. Abd-Alhameed, M.A. Mangoud, J.A. Vaul

PROJECT START & END DATES 1997-2000

TOTAL FUNDING £86k pounds sterling

BRIEF DESCRIPTION

The numerical solution of complex electromagnetic problems via

heterogeneous solution methods is being investigated. This hybrid method

is capable of analysing a system of multiple physically-unconnected

regions by employing the principle of equivalent sources. In particular,

it is possible to model one region (e.g. containing a large amount of

lossy dielectric) with the FDTD method and another (e.g. containing an

antenna and a complex circuit) with the method of moments (time or

frequency domain). This permits the most appropriate method to be used

for each region.

COLLABORATION DETAILS IF ANY (PARTNERS, PROJECT TITLE ETC.)

CSELT, Turin and University of Ancona (parallel work on similar project).
 
 
 
 

(Main. WG2 & WG1) UK4 : Prof P Excell, University of Bradford, UK

TITLE OF PROJECT

Probabilistic Factors in Large-Scale EMC Problems.

INVESTIGATORS' NAMES

P.S. Excell

PROJECT START & END DATES Previous work 1986-89; new phase being planned.

TOTAL FUNDING None at present.

BRIEF DESCRIPTION

As a specific contribution to COST 261, earlier work on probabilistic

factors in complex EM hazards scenarios will be re-worked and expanded

to cover arbitrary circuit configurations that are too complex to be

handled deterministically. This approach treats EMC as a reliability

problem, much like any other.

COLLABORATION DETAILS IF ANY (PARTNERS, PROJECT TITLE ETC.)

None.
 
 
 
 

(Main. WG2) UK8 : Dr A McCowen, University of Swansea, UK

TITLE OF PROJECT

A new efficient integral equation technique for high frequency electromagnetic coupling in EMC

INVESTIGATORS’ NAMES

Dr Andy McCowen

PROJECT START & END DATES Aug 1996 to Aug 1999

TOTAL FUNDING £125,500 pounds sterling

BRIEF DESCRIPTION

The main aim is to establish a new formulation to substantially reduce the significant computational effort presently associated with integral equation techniques (method of moments) for solving high frequency coupling in EMC. The formulation is being embedded within an existing 'in-house' method of moments code which takes in a finite element geometry description to solve for arbitrarily shaped sheet metal,wires, loads, and lossy dielectric/magnetic material over a perfect ground.

Compared to the original formulation the new formulation is showing good results at a fraction of the computational effort, but so far it can only be applied to metal surfaces and wires.Both the original and the new formulations are being applied to EMC

benchmark problems including a TEM-tcell, transients on loaded Tx lines and coupling to partially enclosed wires.

COLLABORATION DETAILS

GEC ALSTHOM, Electromagnetic Research Centre, Stafford

Contact: Dr Tom Preston

Support provided : framework software SLIM, EMC benchmark problems
 
 
 
 
 
 

(Main. WG2) UK11 : Prof A C Marvin, University of York, UK

TITLE OF PROJECT

EMC Aspects of future radio based mobile telecommunication systems

INVESTIGATORS’ NAMES

Prof A.C. Marvin, Dr S.J. Porter, Dr I.D. Flintoft

PROJECT START AND END DATES 1 April ‘96 to 31 May ‘99

TOTAL FUNDING £130k pounds sterling

BRIEF DESCRIPTION

When many radio sources exist within a confined area the wideband voltage induced onto a nearby conductor may contain pulses whose amplitude is many times that due to one radio source alone. This scenario is becoming increasingly prevalent as the density of usage of mobile radio communication systems such as GSM, TETRA and DCS1800 increases. The study aims to investigate the characteristics of the total em field due to such a population of diverse radio systems. The work at York has concentrated on the field coupling and circuit modelling aspects using numerical computational techniques. A related study is being undertaken at the University of Hull. (UK 5)

COLLABORATION

University of Hull; ERA Technology; Cambridge Consultants; Orange; Vodafone; Nokia;

BT Laboratories; University of Hannover
 
 

(Assoc. WG2) B1: Ir. Véronique Beauvois, Université de Liège, Service d'Electricité Appliquée - Professeur Willy Legros, Institut Montefiore B28 - 4000 LIEGE - BELGIQUE

Tél: 32-4-3663746, Fax: 32-4-3662910, http://www.montefiore.ulg.ac.be/services/elap/Welcome.html

TITLE OF PROJECT :

Modelling of electromagnetic fields - from low frequency to microwave applications

INVESTIGATORS’ NAMES : B. Meys and C. Geuzaine from the Prof.W. Legros

Department (University of Liège, Belgium), Alcatel s.a. (Belgium),

C.R.I.F. (Belgium)

PROJECT START AND END DATES : September 1996 - October 2000

TOTAL FUNDING : not applicable

BRIEF DESCRIPTION :

The aim of the research is the numerical computation of electromagnetic fields in a broad bandwidth of frequencies. In low frequency applications, i.e. when the characteristic length of the structure is smaller than the wave length, coupled finite element and integral methods (both using mixed elements) are used for the space discretization, while a time scheme is used for the time discretization. When the characteristic length of the structure becomes of the same order of magnitude as the wavelength, the propagation phenomenon has to be taken into account. While the space discretization methods are similar to those used in low frequency computations, other algorithms are used with

regard to the time or frequency aspects of the propagation: the Newmark algorithm in the time domain, the direct frequency method, the Lanczos algorithm and inverse iterations for the computation of eigen values and eigen solutions in the frequency domain, the Fourier Transform linking both domains. Many applications are conceivable with the tools we have developed:

microwave components, resonant systems (cavity or other), waveguides (eventually nonhomogeneous), dielectric heating (radio-frequency or microwave), open boundarystatic or radiation problems, electromagnetic shields, antennas, electromagnetic compatibility, and so on.

Two Ph.D. theses currently concern this topic in the Department of Electrical Engineering of the University of Liège (Belgium).

(Assoc. WG2 & WG4) ROM1 : Prof. M O Popescu, University "Politehnica" Bucharest, ROMANIA

TITLE OF PROJECT:

CEREZO - Research concerning low voltage high power ZnO transient suppressors

INVESTIGATORS’ NAMES:

Prof. M. O. Popescu, Prof. Claudia Popescu, Ph.D. Stud. Luiza Popescu

PROJECT START & END DATES: Start 1998 End 2000

TOTAL FUNDING: Total 7,500 USD (Romanian research funds)

BRIEF DESCRIPTION:

Research objectives are:

- study of internal switch-off transients in power static converters

- study of field inhomogeneity in the low voltage varistor tablet caused by

little surface irregularities

- equivalent schemas for such tablets in the circuit with transitory

overvoltages

- effects of material ageing for overvoltage protection

- level and breakdown risk, experiments

COLLABORATION DETAILS:

- Research Institute for Electrical Engineering (ICPE)

Ceramic Material Department (Dr. Eng. W. Kappel and

Dipl. Eng. M. Seitan)

- Universit, Paul Sabatier de Toulouse

Laboratoire de Genie Electrique (Prof. Bui Ai)

(Assoc. WG2 & WG4) ROM2 : Prof. M O Popescu, University "Politehnica" Bucharest, ROMANIA

TITLE OF PROJECT:

CECOR - Research concerning EMC characterization of Romanian coaxial cables

INVESTIGATORS’ NAMES:

Prof. M. O. Popescu, Prof. Claudia Popescu, Prof. R. Munteanu,

Ph.D. Stud. D. Ghinea

PROJECT START & END DATES Start 1998 End 2000

TOTAL FUNDING: Total 10,000 USD (Romanian research funds)

BRIEF DESCRIPTION:

The main objectives are:

- design and realization of an experimental setup for determination of Romanian

coaxial cables impedance transfer (triaxial setup and injection method)

- measurements of transfer impedance for Romanian samples of coaxial cables

- statistical data processing in order to verify stability of manufacturing

process

COLLABORATION DETAILS:

- Research Institute for Electrical Engineering (ICPE)

Department of Electrical Materials

- Universit, de Sciences et Technologies de Lille

LRPL - Laboratoire CEM (Prof. B. Demoulin)

(Assoc. WG2 & WG4) ROM4 : Dr. V Vilceanu, AFERRO, Bucharest, ROMANIA

TITLE OF PROJECT:

"Ferrite absorber material for wide spectrum electromagnetic waves"

INVESTIGATORS’ NAMES:

Vilceanu Virgil

Feder Marcel

PROJECT START & END DATES: 1999 - 2000

TOTAL FUNDING: 36,000 USD

BRIEF DESCRIPTION:

Certification of ferrite material having the following characteristics:

- Ferrite type: NiZn

- Initial permeability: mu_i = 1500 +/- 20%

- Resistivity: ro > 105 ohm.cm

- Curie temperature: Tc > 75 deg C

- Sintered cores achievement according to customer specifications.

- Qualification approval procedure fulfillment.

COLLABORATION DETAILS:
 
 

(Assoc. WG2 & WG4) ROM5 : Dr. V Vilceanu, AFERRO, Bucharest, ROMANIA

TITLE OF PROJECT:

"Passive ferrite core filters for electromagnetic disturbance suppression"

INVESTIGATORS’ NAMES:

Vilceanu Virgil

Feder Marcel

PROJECT START & END DATES: 1999

TOTAL FUNDING: 18,000 USD

BRIEF DESCRIPTION:

Sintered cores achievement according to specifications of N11 and N12

materials.

Qualification approval procedure fulfillment.

COLLABORATION DETAILS:
 
 
 
 
 
 
 
 

(Assoc. WG2) UK3 : Prof P Excell, University of Bradford, UK

TITLE OF PROJECT

FDTD Electromagnetic Modelling

INVESTIGATORS' NAMES

P.S. Excell, J.A. Vaul

PROJECT START & END DATES 1997-2000

TOTAL FUNDING £143k pounds sterling(£49k shared with hybrid work, above)

BRIEF DESCRIPTION

A new FDTD program has been written and is being further developed. This

has PML boundaries and it is being used in comparative trials with four

other research groups around Europe, to evaluate accuracy and

consistency in results. It is also being used as the FDTD test bed in

the hybrid field computation project (above).

COLLABORATION DETAILS IF ANY (PARTNERS, PROJECT TITLE ETC.)

National Physical Lab., Univ. of Rome, Nat. Tech. Univ. of Athens, CNET

Paris, CSELT Turin.
 
 
 
 
 
 
 
 
 
 
 
 
 
 

(Assoc. WG2) UK10 : Dr J F Dawson, University of York, UK

TITLE OF PROJECT

Improved Radiated Emissions Prediction\\ for Electromagnetic Compatibility

INVESTIGATORS’ NAMES

M.D.Ganley, J.F.Dawson, S. J. Porter, A.C.Marvin,

PROJECT START & END DATES Jul 1997 - Jul 1999

TOTAL FUNDING (INDICATE CURRENCY) £110k pounds sterling

BRIEF DESCRIPTION

This project aims to improve the performance of CAD tools for the prediction of electromagnetic emissions from electronic PCBs and subsystems, and extend their range of application to larger systems of interconnected subsystems. To achieve this, we will examine and optimise the tradeoff in speed of operation, accuracy of result, and the level of detail or approximation used in the numerical model. The knowledge gained by this first step will then be used to investigate a hierarchical solution model for larger systems. This will allow subsystems to be individually evaluated in some

detail and then combined, using a simpler model for each subsystem. The range of applicability of the tools will be extended from small desktop products to larger systems comprising a number of modules.

COLLABORATION DETAILS IF ANY (PARTNERS, PROJECT TITLE ETC.)

British Aerospace, Quantic EMC