Complying with EMC regulations seems to be a challenge for many companies who manufacture electronic products. This usually comes to a head, if considered near the end of the development cycle. As an EMC consultant helping hundreds of clients, I've witnessed the resulting cost and schedule delays. Invariably, engineers will attempt to troubleshoot and … [Read more...]
Antennas
- Free EMC Formulas & Equations: dBm, Volts, Watts Conversion
- Free EMC Formulas & Equations: Antenna Factor and Gain Calculations
- Free EMC Resource: VSWR vs. Return Loss Cheat Sheet
- Free Article: The Importance of Antenna Beamwidth in RF Testing
- Free Article: 4 Reasons To Get A Bilogical Antenna First For Device Testing
KRYTAR Announces Two (2) New ULTRA+ 180-Degree Hybrid Couplers Covering 10 to 40 GHz
FOR IMMEDIATE RELEASE JANUARY 20, 2026, SUNNYVALE, CALIF. — KRYTAR, Inc., a leader in the design and production of ultra-broadband microwave components announces two (2) new ULTRA+ 180-Degree Hybrid Couplers that deliver 3 dB of coupling over the frequency range of 10.0 to 40.0 GHz in compact packages. KRYTAR’s New family of ULTRA+ 180-Degree, 3 dB, … [Read more...]
KRYTAR Announces New Compact 3 dB, 180-Degree Hybrid Coupler Covering 7.125 to 15.35 GHz
FOR IMMEDIATE RELEASE KRYTAR Announces New Compact 3 dB, 180-Degree Hybrid Coupler Covering 7.125 to 15.35 GHz NOVEMBER 11, 2025, SUNNYVALE, CALIF. — KRYTAR, Inc., a leader in the design and production of ultra-broadband microwave components and test equipment announces a new 180-Degree Hybrid Coupler that delivers 3 dB of coupling over the frequency … [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...]
IoT Systems with mmWave Sensors
One of the most common applications of Internet of Things (IoT) devices is sensing, followed by transmission of raw data back to a base station or server for storage and further analysis. The most common of these sensing tasks seems to be environmental sensing, such as monitoring gas concentrations, temperature, humidity, etc. These devices are so ubiquitous that they … [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...]
An Easy Way to Calculate a Microwave Wavelength in Inches
A colleague, Mike Stasiowski, and I came up with this quick GHz wavelength formula while designing quad ridge circular polarized jamming antennas for the military when working at Nurad. The textbook formula (wavelength = c/f) where: c = the speed of light 3.00×108 m/s, and f = frequency in Hz, was cumbersome at times to calculate, then convert, to inches for practical … [Read more...]
Antenna Factor Calculations and Deviations
Introduction In recent years, the use of a term call "Antenna Factor" in EMC and spectrum pollution work has become very important. There has been a great need for measuring field intensity and/or power density as accurately and conveniently as possible. Classically in RFI/EMI measurements, the use of antenna factors is very common. These antenna factors were, by … [Read more...]
Some of the Many Stories of Medical EMI
Introduction I have been collecting stories about EMI for a long time, publishing many of them in the ‘Banana Skins’ column of The EMC Journal, www.theemcjournal.com. Some come from official reports, some from anonymous whistleblowers, some are amusing, and some concern deaths and injuries. At the present time, I have published 855 of them, all indexed by application and by … [Read more...]
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