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EMC Chapter Technical Meeting

Electromagnetic Compatibility SocietyThe IEEE Electromagnetic Compatibility Society UK and Ireland Chapter invites you to attend open technical meeting on various EMC and Radio topics.

Meeting Agenda

10:40 – 10:45 Welcome. Roy Ediss
10:45 – 11:15 Update on the RED. Nick Hooper, Compliance Europe Ltd.
11:15 – 12:00 900 MHz band – alignment with the rest of the world. David Donachie, Ofcom.

12:00 – 13:00 Lunch Break. Lunch is not provided but can be purchased in the Limeburners Restaurant which is nearby to meeting room. There are also picnic benches for a packed lunch.

13:00 – 13:45 Radiated Emission Standards and Measurements Below 30 MHz – Large structures and Wireless Power Transfer (WPT). David Lauder, University of Hertfordshire.
13:45 – 14:30 Analysing the effects of the EFT/B immunity test. Tim Williams, Elmac Services.
14:30 Short briefing on the museum and opportunity to look around.

17:00 Site closes.

Information available on topics and speakers:

Update on the RED, Nick Hooper – Nick is a Chartered Engineer CEng, Senior Member of the IEEE, and currently the Technical Secretariat for the REDCA, the Compliance Association for the RED Notified Bodies, with many manufacturers, test labs and independent consultants as members. He regularly attends the EU Commission TCAM Working Group meetings and works with ADCO RED and ETSI. He has presented on the new Radio Equipment Directive (RED) within the EU and occasionally to the USA TCBC meetings.

For the previous 26+ years he worked at RFI, which was taken over by UL some years ago. He was a Notified Body for the EMC Directive and the Radio Equipment Directive as well as the previous Chairman of the RED CA (January 2012 to December 2017, 3 terms of 2 years).  He does not want to count the many years in EMC and RF engineering, covering Avionics, commercial and Military EMC, RF Design, Tempest and International Regulatory aspects.

An experienced ETSI member specialising in Microwave Communications, SRD, 2G, 3G and 4G systems, he has dealt with “low kHz” to 60 GHz+ systems over recent years and is a keen follower of the developing 5G technologies.

Analysing the effects of the EFT/B immunity test, Tim Williams, Elmac Services – The EFT/Burst test of IEC 61000-4-4 is very common, and is a good test of the susceptibility of a product to switching transients. But it is also often found to provoke susceptibilities, particularly in digital equipment, which are sometimes hard to fix. A typical reason for this difficulty is that the actual coupling paths followed by the transient disturbances may not be obvious. This presentation shows how you might analyse such paths, and offers some measurement results on a simple unit which illustrate the analysis.

Tim Williams is EMC consultant with Elmac Services, offering advice and training on all aspects of EMC. He is the author of “EMC for Product Designers”, Newnes 2016, now in its 5th Edition.

Radiated Emission Standards and Measurements Below 30 MHz – Large structures and Wireless Power Transfer (WPT), David Lauder, University of Hertfordshire – This presentations looks at measurements and EMC standards for radiated emission measurements below 30 MHz, in relation to new and emerging technology.  The use of conducted rather than radiated emission tests below 30 MHz is applied where the EUT is ‘electrically small’ compared to a wavelength and therefore the primary coupling mechanism for electromagnetic disturbances is via conducted emissions from power ports and communication ports rather than direct radiation from the enclosure port. The ‘electrically small’ assumption is clearly not applicable to large structures such as wind turbines and electricity substations.

Recent developments such as the use of doubly-fed induction generators for wind turbines and onshore High Voltage DC (HVDC) electricity converter stations have shown the need for new or updated EMC standards. Another recent development that requites radiated emission measurements below 30 MHz is wireless power transfer (WPT). This is already being used for low power applications such as mobile phone charging and much higher power WPT is currently under development for charging electric cars and also electric buses. Electric vehicle chargers are intense H-field sources that are expected to be deployed in residential areas and compatibility with existing LF/MF/HF radio services needs to be achieved.

David Lauder graduated from University of Essex with a BSc Telecommunications Engineering and worked at Marconi Avionics and ITT/STC. He then worked at Hatfield Polytechnic/University of Hertfordshire where he has taught courses in electronics, communications and EMC. He completed a part time PhD in EMC in Wireline Communications and has continued research in this area. He also does voluntary EMC work for the Radio Society of Great Britain EMC Committee and writes a regular EMC Column in the Society’s journal Radio Communication.

900 MHz band alignment with the rest of the world, David Donachie, OFCOM – David is an engineer and technical regulatory specialist is responsible for managing the regulations in the UK that govern the use of SRDs. This involves seeking out new and innovative ways to allow greater sharing of the radio spectrum. David has been with Ofcom since its formation in 2003. Before that he spent 7 years with the UK military as a radio technician and 7 years in the private sector as a radio systems engineer. He has been involved in the work of various regulatory committees at European level, including in the EU, CEPT and ETSI. In 2014 he advised the UK Government’s negotiating team on the Radio Equipment Directive as it went through the EU legislative procedure in the European Council and the Parliament.

The event is an open meeting, with all welcome. There is no charge for attendance. If you plan to attend you need to register by emailing: Roy Ediss

For registration you will need to provide:  Name and Company (if applicable)

View the location details, map and information available at: http://www.amberleymuseum.co.uk/how-to-find-us  There is a free car park.

For travel by rail: Amberley Station is on the Arun Valley line which runs from London Victoria to Arundel and then on to Bognor Regis, Chichester and Portsmouth.