Dear readers, Welcome to the 2016 EMC Europe Guide. We welcome you to a new year in EMC and continue, as always, to provide you with the most current EMC information in our eighth annual guide dedicated to Europe. This upcoming year presents quite a few new standards and directives that are important for electronics engineers to be aware of. Below are a few, with additional … [Read more...]
Mains Input Filters – What is Inside the Box and Why?
J M Woodgate BSc(Eng) C.Eng MIET SMIEEE FAES HonFInstSCE J M Woodgate and Associates [email protected] www.jmwa.demon.co.uk These days, it's common practice to buy-in mains input filters in the shape of metal boxes with four or five terminals. The supplier's lists may be consulted, and advice sought, but often the same filter as was used for a previous product is … [Read more...]
CISPR 32 – What is it, Why was it Written and Where is it Going?
Ghery S. Pettit, NCE President, Pettit EMC Consulting LLC Introduction CISPR 32, “Electromagnetic compatibility of multimedia equipment – Emission requirements” was first published in 2012. This standard came about due to a major development in consumer electronics, the digital television receiver. The CISPR is a special committee of the IEC. CISPR stands for … [Read more...]
How do you measure 5G?
By Lars Jacob Foged The development of 5G cellular networks is well underway and requires a new approach to ensure accurate measurement of the antenna components. With flexible radiation patterns which are capable of adapting to the changing situations in mobile networks, the full characterisation of the Active Antenna System (AAS) in 3D space has been the focus of … [Read more...]
Spectrum Supportability Risk Assessments: An Overview
By Brian Farmer Introduction As we ride on the cusp of a new age of electronic warfare, management and use of the electromagnetic spectrum are becoming increasingly important. In fact, the Department of Defense (DoD) has deemed the electromagnetic spectrum a critical resource and has established DoD Instruction 4650.01, which defines policy and procedures for … [Read more...]
EMC War Stories: Letters from Home Part 2: It’s hard for my computer to sleep when I’m doing the laundry
Candace Suriano Suriano Solutions John Suriano Nidec Automotive Motors Americas Dear John, Once again it’s a cold dry winter here and I have found that there is a great way to keep warm— by doing the laundry. I discovered something really strange, though: when I’m taking the laundry out of the dryer it sometimes wakes up the computer on the desk almost ten feet away! I knew … [Read more...]
EMI Across Randomly-Patterned Multiple Traces on a PCB of an Audio/Multimedia Infrastructure: Crosstalk Performance Vis-à-Vis Smart Handheld Devices
PERAMBUR S. NEELAKANTA*, Ph. D., C. Eng., Fellow IEE and AZIZ U. NOORI, M. S. E. E Department of Computer and Electrical Engineering & Computer Science Abstract In the state-of-the-art wireless devices accommodating a dense layout of copper traces on the associated printed-circuit boards (single and/or multi-layered), is inevitable. Relevantly, considering the baseband … [Read more...]
FCC Changes Certification Process
By David A. Case NCE, NCT Senior Technical Leader Regulatory Cisco Systems IncAbstract: The FCC Authorization and Evaluation Branch has been the forefront in regards to reviewing and issuing of FCC certification. With the adoption of the Telecommunications Certified Body (TCB) program, a number of these approvals were done via TCB reviewers with FCC oversight, though the FCC … [Read more...]
Radio Equipment Directive
By Charlie Blackham,Principal Consultant and Director of Sulis Consultants Ltd. This article provides an introduction to the recently published Radio Equipment Directive (RED). It looks briefly at the history of the requirements, the changes in the product and regulatory landscape and looks at what it means to equipment manufacturers. History The current Radio and … [Read more...]
Harmonic Comb Generators Are Useful Tools
By Kenneth Wyatt INTRODUCTION One tool every EMC test lab should own is a harmonic comb generator. A comb generator is simply a device that will produce a set of harmonically related CW signals whose spacing is based on a fundamental oscillator frequency. For example, if we were to start with a 10 MHz clock oscillator and feed the digital output into a coax connector, we’d … [Read more...]