Verifying your trace S-parameters is more than just good practice—it’s essential for confident measurement, simulation, and design space exploration in modern EDA tools. Especially in high-speed digital systems where traces are long, applying a few key principles can provide valuable insights into your data and give you a head start in your design … [Read more...]
How to Not Die in an EMC Lab
There are risks in every work environment: risks to humans, risks to equipment, risks to things you might be testing, and risks to customers’ equipment. Such is the case in an EMC lab, which is typically an ever-changing environment with moving parts, equipment, people, and projects. From day to day, EMI personnel can be working on military equipment worth millions of … [Read more...]
Waveguide Insights: Understanding Rectangular and Double-Ridge Designs for Enhanced RF Systems
OVERVIEW This App-Note provides a thorough examination of rectangular and double-ridge waveguides, highlighting their design, operating principles, advantages, and applications. It details specifications and power-handling considerations essential for RF systems. Waveguides are crucial in microwave engineering, offering low-loss, high-efficiency transmission for … [Read more...]
What You Need to Know to Design Your Own Kit of Near-Field Probes
One challenge for EMC engineers is the impossibility of visualizing electromagnetic fields with our own eyes. Since we cannot directly observe them, we need tools to transform what we cannot see into what we can see. There are a lot of EMC tools to measure and troubleshoot EMC problems, but their elevated price makes them accessible to only a select group of people. The … [Read more...]
EMC Immunity Testing: Do You Know Your Failures?
Electromagnetic compatibility (EMC) is the desired condition for electronic devices. In an ideal world, radio-frequency emissions and transient events would not cause failures or disruptions to electronic equipment. But as much as we (and the product manufacturers) wish otherwise, we are not in an ideal world. Radiated emissions, whether intentional from transmitters or … [Read more...]
CubeSats Require Special ESD Handling Protocols for Launch Integrity — Part I
Figure 1: Tu-Pod in Space (Courtesy Amin Djamshidpour, Co-Founder Teton Aerospace) CubeSats are relatively inexpensive when compared to traditional vehicle-size satellites. Since their inception, CubeSat spacecraft have shown functional success rates ranging from 40% to 75% for launch and deployment phases. According to the International Journal of Aerospace Engineering, … [Read more...]
Skip-Layer Routing for High Bandwidth Channels
As we have seen from discussions on chiplets and their routing standards in substrates, many of the routing techniques used in PCBs also apply in packaging. Microstrip and stripline structures can both be used in IC substrates, and the design approach is basically the same as in PCBs. This routing is fine for the majority of digital interfaces, but when we get to wideband … [Read more...]
SPEAG combines CMX500 OBT with the DASY83D system for automated SAR testing of 5G NR devices
SPEAG and Rohde & Schwarz expand their long-term collaboration with the combination of the CMX500 wideband radio communication tester with the DASY83D utilising the enhanced DASY8 Application Programming Interface. This combination allows manufacturers of wireless devices to perform Specific Absorption Rate tests of 5G FR1 devices using the future-proof CMX500 … [Read more...]
EMV 2025: Rohde & Schwarz Presents New Antenna for EMI Measurements in Frequency Range from 14.9 GHz to 44 GHz
At the EMV 2025 tradeshow in Stuttgart, Rohde & Schwarz displays for the first time its R&S HF1444G14 High-gain EMI microwave antenna with outstanding performance. The antenna covers a frequency range from 14.9 GHz to 44 GHz. It meets the requirements of the standards CISPR 16-1-4 and CISPR 16-2-3. Precise mechanical construction and optionally … [Read more...]
Guide to Real-Time Spectrum Analyzers: Applications
This is Part 4 in a series of articles which review the basics of conventional swept versus real-time spectrum analyzers and highlight some of the recent advances and instrument form-factors. Read Part 1, Guide to Real-Time Spectrum Analyzers: Types, here. Read Part 2, Guide to Real-Time Spectrum Analyzers: Definitions, here. Read Part 3, Guide to Real-Time Spectrum … [Read more...]
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