Technical articles A selection of technical papers and articles, relevant to your industry.
General  | CEM 2004 in the Shakespeare Country: A Royal Treat - As you Like It
Raj Mittra (May 2005)
Review of CEM 2004..."If you were hit by the spring fever last month;you wanted to get away from the rat-race and go somewhere to soak in a little culture, and yet combine the experience with exposure to the latest goings-on in computational electromagnetics (CEM), the place to be was Stratford, in England."
Source: CEM 2004 |  | Not feeling well
A Ditson (February 2004)
This article argues that the distributed management of frequency spectrum in Europe is adversely affecting the region, as decision-making becomes more difficult and time-consuming. This is seriously impeding progress in the area of medical equipment, due to the sharing of allocated spectrum with commercial wireless equipment using e.g. WiFi and Bluetooth standards.
Source: Communications Engineer, February 2004 | | | WEEE & ROHS Directive - Actions you need to take
Produced by Envirowise in support of DTI and DEFRA initiatives on WEEE and ROHS (November 2003)
Directive on waste on electrical and electronic equipment (WEEE) and Directive on the restriction of use of certain hazardous substances (ROHS) in electrical and electronic equipment - A guide giving details on actions you need to take.
Source: | | | Phones and health - the science
C Evans-Pughe (April 2003)
Survey of recent research into the health effects of mobile phone use.
Source: IEE Review May 2003 | | | More IEC Standards to Address High-Power Electromagnetic Transients
Compliance Engineering (September 2002)
A new family of standards has been developed to address the threat of intentional EMI. The standards, which address high-power electromagnetic (HPEM) transients and disturbances caused by high-altitude electromagnetic pulses (HEMP) due to intentionally produced HPEM transients, are designed to help manufacturers and facility owners protect their equipment from the effects of these disturbances.
Source: | | | Critical Factors in ESD Program Management
Compliance Engineering (September 2002)
Developing a successful ESD management program is key to minimizing ESD damage to sensitive devices. Electrostatic discharge (ESD) events can have serious detrimental effects on the manufacture and performance of microelectronic devices, the systems that contain them, and the manufacturing facilities used to produce them.
Source: | | | Dielectric antennas make waves
R Dettmer (February 2003)
Building antennas from dielectrics sounds like a contradiction in terms. But if you get the technology right, then the benefits can be considerable.
Source: IEE Review, February 2003 | | | Considerations on GPS disruption
D A Hayes, UK Radiocommunications Agency (September 2002)
The use of GPS has obvious benefits for the UK economy and should be encouraged. However, there is no doubt that businesses using GPS in critical applications should have backup provisions for providing timing or navigation information. Companies and organisations utilising GPS should consider for themselves the consequences of any disruption to the GPS service and the impact it may have on their business.
Source: IEE Seminar on Location Based Services, 16 September 2002 |
General | | Design Practices Above 1GHz – The Military Experience
Richard Kirby (November 2005)
• Overview of the electromagnetic environment above 1GHz from a design perspective • Coupling Mechanisms • Mitigation techniques • Case study
Source: The IEE Seminar on: EMC Above 1 GHz | | | Solutions Above 1 GHz, Defence and Avionics Experience
Richard Hoad (November 2005)
• Emissions measurement techniques • Immunity/susceptibility methods • Transfer function measurements • Shielding Effectiveness/material characterisation
Source: The IEE Seminar on: EMC Above 1 GHz | | | CISPR Standards for Measurements Above 1 GHz
Martin Alexander (November 2005)
• The formulation of the standard • The limitations of the standard • Some results of applying the standard • Alternative measurement methods
Source: The IEE Seminar on: EMC Above 1 GHz | | | Why broadband PLT is bad for EMC
Tim Williams, Elmac Services (June 2005)
This paper looks at the technology of Power Line Telecommunications (PLT) through the lens of an EMC specialist, and attempts to explain why broadband through PLT is a dangerous and divisive issue.
Source: | | | The latest from CISPR on radiated measurements above 1 GHz.
Martin Alexander, National Physical Laboratory (November 2004)
At the CISPR annual meeting in the 3rd week of September where there was much discussion of the method of EMC compliance testing of products above 1 GHz, and also the method of evaluating fully anechoic rooms for this testing. A radiated test method is urgently required by product committees, especially up to 6 GHz, but is this method sufficiently robust?
Source: Presented at the IEE EMC PN Annual Hot Topics Forum | | | EMC, EMF & Radio Parameters
Alan Dearlove, RADTEL Services Ltd (November 2004)
Alan Dearlove has recently launched on behalf of the Global Standards Collaboration group a project to evaluate all the testing technologies above 1 GHz for radio products including EMC, EMF and radio parameter testing. The objective is to recommend test methods and measurement uncertainties up to 300 GHz as required by ITU-R recommendation SM 329-9 (2001).
Source: Presented at the IEE EMC PN Annual Topics Forum | | | PCB Power Planes, Boon or Curse?
Tim Jarvis, RadioCAD (November 2004)
Power planes (plane-pairs) are the most popular method of powering Integrated Circuits (ICs) in modern multi-layer PCB design. Plane-pairs provide the dual advantages of 'free' power-supply decoupling capacitance and reduced noise coupling between IC power pins. They are however resonant structures that behave like patch antennas and can be the cause of many unwanted radiated emissions.
Source: Presented at the IEE EMC PN Annual Hot Topics Forum | | | The Other Eternal Triangle
Angus Annan (September 2004)
Article featured in the member voices section of September's IEE Review
Source: IEE Review | | | A Practical Guide for EN 61000-3-3 and EN 61000-3-11
Keith Armstrong of Cherry Clough Consultants (August 2004)
The fourth in a series of seventeen guides that have been written to assist design, test, approvals, quality and application engineers to understand the various standards, many called up by the CE Marking Directive, relating to EMC Phenomena and Power Quality. EN 61000-3-3 and EN 61000-3-11 covers limits for voltage changes, voltage fluctuations and flicker in public low-voltage systems.
Source: Printed and published by REO (UK) LTD | | | A Practical Guide for EN 61000-4-11
Keith Armstrong of Cherry Clough Consultants (August 2004)
The second in a series of seventeen guides that have been written to assist design, test, approvals, quality and application engineers to understand the various standards, many called up by the CE Marking Directive, relating to EMC Phenomena and Power Quality. EN 61000-4-11 covers testing and measurement techniques for voltage dips, short interruptions and voltage variations immunity.
Source: Printed and published by REO (UK) LTD | | | A Practical Guide for EN 61000-3-2
Keith Armstrong of Cherry Clough Consultants (August 2004)
The third in a series of seventeen guides that have been written to assist design, test, approvals, quality and application engineers to understand the various standards, many called up by the CE Marking Directive, relating to EMC Phenomena and Power Quality. EN 61000-3-2 covers limits for harmonic current emissions up to and including 16A per phase.
Source: Printed and published by REO (UK) LTD | | | A Practical Guide for EN 61000-4-8
Keith Armstrong of Cherry Clough Consultants (August 2004)
The first in a series of seventeen guides that have been written to assist design, test, approvals, quality and application engineers to understand the various standards, many called up by the CE Marking Directive, relating to EMC Phenomena and Power Quality. EN 61000-4-8 covers power-frequency magnetic field immunity test – testing and measurement techniques.
Source: Printed and published by REO (UK) LTD | | | EMC Filters Guide
(August 2004)
This guide explains the basic principles used in the construction of EMC filters. Starting with the history and theory of electromagnetic fields the guide goes on to explain how filters attenuate common and differential mode noise. There are also brief explanations on testing, standards and installation.
Source: Written by John Symonds of REO UK LTD | | | WEEE & ROHS Directive - Actions you need to take
Produced by Envirowise in support of DTI and DEFRA initiatives on WEEE and ROHS (November 2003)
Directive on waste on electrical and electronic equipment (WEEE) and Directive on the restriction of use of certain hazardous substances (ROHS) in electrical and electronic equipment - A guide giving details on actions you need to take.
Source: | | | EMC - it's nearly all about the cabling
(April 2003)
Anyone working in a systems electromagnetic compatibility environment is usually painfully aware of the fact that, often, the weakest link in the system is the cabling. Whether this is the cable or the connectors themselves, or more likely the interface between the cable and the connectors where there may be a poor connection of the cable screen, the ability of cabling to leak or absorb spurious signals is a cause of much EMC frustration. There are a number of factors working together to increase the relevance of cabling EMC to industry and academia, particularly for communications cabling. These include higher data rates and developments in EMC standards and legislation. The purpose of this seminar was to bring together industry, academia and consultants to discuss EMC issues, including techniques to improve EMC behaviour and to clarify upcoming standards.
Source: IEE Seminar | | | Guidelines for Improving Digital Television and Radio Reception
Radiocommunications Agency (March 2003)
This publication provides guidance to television and radio dealers, service engineers and aerial installers on dealing with interference to digital television and radio reception. Similar guidance has been produced for analogue television and radio interference in information sheet RA 323 'Guidelines for Improving Television and Radio Reception', available from us
Source: | | | EMCTLA Comments on the HOT UK Prosecution
EMC Compliance Journal (January 2003)
Because HOT UK Ltd pleaded guilty, the arguments outlined in this article have not been tested in court. Nevertheless, it is the EMCTLA’s view that any manufacturer defending a similar position who wished to rely on the established precedence of product or product family standards over the generic standards, as now described in CENELEC Guide 25, would also have to construct a rigorous technical case to overwhelm the analysis presented here. However the EMCTLA would prefer to see guidance on the position from either the EU Commission or at least the UK government.
Source: | | | More IEC Standards to Address High-Power Electromagnetic Transients
Compliance Engineering (September 2002)
A new family of standards has been developed to address the threat of intentional EMI. The standards, which address high-power electromagnetic (HPEM) transients and disturbances caused by high-altitude electromagnetic pulses (HEMP) due to intentionally produced HPEM transients, are designed to help manufacturers and facility owners protect their equipment from the effects of these disturbances.
Source: | | | Critical Factors in ESD Program Management
Ted Dangelmayer (September 2002)
Developing a successful ESD management program is key to minimizing ESD damage to sensitive devices. Electrostatic discharge (ESD) events can have serious detrimental effects on the manufacture and performance of microelectronic devices, the systems that contain them, and the manufacturing facilities used to produce them.
Source: Compliance Engineering | | | Achieving EMC for Dc-Dc Convertors
Chris Likely (November 2002)
For dc-dc convertors, selecting suitable parts and designing effective layouts are crucial to meeting electromagnetic compatibility requirements.
Source: Compliance Engineering | | | Considerations on GPS disruption
D A Hayes, UK Radiocommunications Agency (September 2002)
The use of GPS has obvious benefits for the UK economy and should be encouraged. However, there is no doubt that businesses using GPS in critical applications should have backup provisions for providing timing or navigation information. Companies and organisations utilising GPS should consider for themselves the consequences of any disruption to the GPS service and the impact it may have on their business.
Source: IEE Seminar on Location Based Services, 16 September 2002 | | | EMC in the New Millennium
P J Kerry, Radiocommunications Agency (November 2001)
Society is increasingly dependent on radio, telecommunications and electronic products, but their use is only possible if certain EMC criteria are met. However, the criteria of the last century will not necessarily be those required for this new one.
Source: EMC PN Lecture | | | EMC in the new millennium
P J Kerry, Radiocommunications Agency (March 2001)
Society is increasingly dependent on radio, telecommunications and electronic products, but their use is only possible if certain EMC criteria are met. However, the criteria of the last century will not necessarily be those required for this new one.
Source: Engineering Science and Education Journal April 2001 |
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