This is post 3 of AR’s blog series “Specifying RF/Microwave Power Amplifiers for EMC Testing.” The full series can be viewed here. SYSTEMS The ability to pull together the right amplifiers for the job, with training and ongoing support is one of many important elements to building a system. This approach allows test engineers and technicians the ability to do what they do … [Read more...]
What is the Most Important EMC Design Guideline?
INTRODUCTION EMC design guidelines have always been a popular subject in the EMC design community. What is the most important EMC design guideline, i.e. the guideline with the highest impact on the emission and immunity of electronic circuitry? Studying books and literature from renowned EMC experts often tells us that the most important EMC design guideline is: … [Read more...]
Specifying RF/Microwave Power Amplifiers for EMC Testing – Amplifier Input & Output Requirements
This is post 2 of AR’s blog series “Specifying RF/Microwave Power Amplifiers for EMC Testing.” The full series can be viewed here. INTRODUCTION How much input power is required to achieve full rated output power is a common concern when choosing an amplifier. Amplifier manufacturers have specified an input of 1 milliwatt. (Note that this is not the case for every … [Read more...]
Introduction to Specifying RF/Microwave Power Amplifiers for EMC Testing
Can you imagine a world without electronic devices? AR asks and answers this question in its new blog series: “Specifying RF/Microwave Power Amplifiers for EMC Testing.” Explosive growth in technologies like portable electronics, Internet-of-Things devices, and autonomous vehicles has led to a world full of electromagnetic interference. Efficient EMC testing is more critical … [Read more...]
Review of MIL-STD-461 CS116 Damped Sinusoidal Transients, Cables and Power Leads
Introduction In this article, I am delving into the evolvement of CS116 testing, the background, the purpose and how the testing is approached today. The test title is, “Conducted Susceptibility, Damped Sinusoidal Transients, Cables and Power Leads”. MIL-STD-461 assigns applicability to a broad variety of applications and states the purpose is to verify the ability of the … [Read more...]
Review of MIL-STD-461 RE103 Antenna Spurious and Harmonic Outputs
Introduction Technology frequently embeds transmitters in a myriad of devices to support an Internet Of Things (IoT) concept from identification to condition-based actions, and this IoT approach includes defense operations. Devices may include multiple transmitters that a few years ago did not include communications of any sort. Inclusion of RF transmitters has prompted a … [Read more...]
Genisco Releases GFP88221 High Amperage Filter Panels
Newest innovation in the company's high-end filter line features a short delivery lead time, smaller and lighter build Genisco Filter Corporation, the leader in the design and manufacture of EMI/RFI filters for power lines, signal lines and custom applications, announces the addition of a new, high performing filter to its roster - the GFP88221. The GFP88221’s … [Read more...]
Is Electric Equipment Grounding the Basic Protection Means Against HEMP?
Abstract The article discusses the differences between the electromagnetic pulses at lightning (LEMP) and at high altitude nuclear explosion (NEMP or HEMP). The article also shows that these differences do not allow to transfer LEMP experience on to NEMP. The author questions the effectiveness of grounding of electronic equipment as the main protection principle against … [Read more...]
Be Careful with Low Cost/Quality Common Mode Chokes ….
Dear readers, I have been really busy working in training and EMI troubleshooting in the past months. I am happy to be here again with a new post. This month we will see a topic from a real-world situation - very interesting - for electronic designers working in conducted emissions problems. In one of the projects I was involved with several weeks ago, a product was … [Read more...]
Review of MIL-STD-461 CS103 Intermodulation, CS104 Rejection of Undesired Signals and CS105 Cross-Modulation
Introduction Rapid technology advances in the wireless communications world make test and evaluation of Radio Frequency (RF) devices a difficult subject. It seems that by the time a new device hits the market, it has been made obsolete by the next generation. I recall hearing from a major electronics manufacturer CEO that 90% of sales happen within 90-days of market release … [Read more...]
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