Emissions measurements of the electrical field strength in the frequency range of 1 GHz to 40 GHz are carried out in an anechoic chamber or at an open area test site. Usually these measurements are very time-consuming as the points of maximum radiation have to be found over all angular positions of the device under test (DUT) as well as over all antenna heights. DUTs with … [Read more...]
Antennas
- Free PDF Download: How to Select an EMC Antenna Type by Test Standard by AH Systems
- Free PDF Download: The 10 Factors You Need to Consider When Selecting an EMC Antennaby AH Systems
- Free PDF Download: AK-571-4 Antenna Kit, Your Inexpensive Solution to Broadband Applications by AH Systemes
- Free PDF Download: RF Conversion Formulas by AH Systems
- Free PDF Download: AH Systems Product Catalog by AH Systems
ESD Effects of Digital ICs
One issue I see fairly often with unshielded consumer or commercial products is CPU resets during periods of immunity testing, such as during electrostatic discharge (ESD) testing. Untreated, this can lead to field failures and associated customer satisfaction issues. The remedy is usually quite simple and IC manufacturers even mention the solution, but it’s usually buried … [Read more...]
New 9kHz to 6GHz Handheld Isotropic Antenna Released
The new IsoLOG 3D Mobile, Aaronia’s latest development, is an ultra light and small isotropic antenna which is compatible to any spectrum analyzer. It just works on the fly and is a perfect plug and play solution for 3D measurements in limited time frames. The antenna requires no software installation, no power connection and no hardware changes. It is connectable via the N … [Read more...]
Assembling A Low Cost EMI Troubleshooting Kit – Part 2 (Immunity)
This article concludes the two-part series, Assembling Your Own EMI Troubleshooting Kit – Part 1, which included a listing of the major components of a complete EMI trouble shooting kit that can be easily transported where needed. Most of the probes and tools listed in Part 1 were useful for troubleshooting radiated emissions. In Part 2, we’ll discuss several other useful … [Read more...]
Radio Equipment Directive
This article provides an update on changes occurring as a result of the new Radio Equipment Directive (RED) 2014/53/EU which can be used from June of 2016. It looks at the changes in the product and regulatory landscape and what it means to equipment manufacturers. More detail on the history of the RED can be found in the article, Radio Equipment Directive, in the … [Read more...]
RSA7100A Real-Time Spectrum Analyzer
The RSA7100A wideband signal analyzer offers real-time spectrum analysis up to 800 MHz bandwidth and streaming storage of up to 2 hours of seamless data at full bandwidth in one solution. This range covers the most commonly used communications and radar bands. The wide real time bandwidth enables analysis of wideband designs and monitoring of wideband/digital signals. The fast … [Read more...]
New Chamber Design with 300 GHz Compact Range Released
ART-Fi's first foray into chamber design yields a compact range that features the latest in precision reflectors, developed by WavePro. Richard Liu, Managing Director of WavePro, said, " The rolled-edge reflector reduces edge diffraction and notably improves quiet-zone ripple, resulting in large quiet zones at low frequencies. The surface is the latest in precision, with … [Read more...]
New Antenna Introduced for Automotive Testing of Immunity Against Radar Pulses in Bands
Schwarzbeck introduces a new antenna to complement their solution for Toyota, General Motors and Ford radar testing, DC magnetic field bands 1.2-1.4 GHz (lower band) and 2.7-3.1 GHz (upper band), check out their website, here. With the introduction of the BBHA 9120 K High Gain Horn Antenna, Schwarzbeck Mess-Elektronik now has a complete solution for automotive testing of … [Read more...]
Measuring Cable Resonances With A Comb Generator
(October 28, 2016) Cables are one of the key metallic structures on a product that can act as an antenna and couple energy, causing radiated emissions and possible compliance test failures. This has been discussed extensively in the literature on product design for EMI compliance. In many cases, they can resonate at their half-wave frequency and actually amplify any harmonic … [Read more...]
EMI is Major Issue at IEEE Broadcast Symposium
(October, 12, 2016) An increase in the overall RF noise pollution throughout the electromagnetic spectrum, at least through 1 GHz, was one of the main topics of discussion at the recent 2016 IEEE Broadcast Symposium held in Hartford, CT, this past October, as reported by Radio World. Increasing RF noise pollution is a concern to almost everyone now, stated Steve Johnston, … [Read more...]
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