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The Effect of DC/LF Current in Ferrites for EMI

Author: 

Arturo Mediano

Arturo Mediano teaches courses on EMC/EMI and Signal Integrity for Besser Associates. He is a frequent contributor to industry magazines and journals on these topics. This article appears in the "Practical Tips" section of InCompliance magazine.

Ferrites for EMI suppression are usually chosen looking for high (resistive) impedance at the frequency of interest; but, sometimes, that ferrite is not working as expected. Perhaps you have saturation effects?

Noise Figure Measurement Accuracy – The Y-Factor Method

Author: 

Keysight

This app note gives some good background for improving the accuracy of noise figure measurements.

Some noteworthy topics covered include: when to use a noise source with a larger or smaller ENR, choosing the appropriate measurement bandwidth, and factors to take into account when making measurements on frequency-conversion devices (mixers).

The EMC Blog

Author: 

Arturo Mediano

Arturo Mediano is a professor at University of Zaragoza (Spain) and founder of The HF-Magic Lab®, a specialized laboratory for design, diagnostic, troubleshooting, and training in the EMI/EMC/SI and RF fields. He is also an instructor for Besser Associates (CA, USA) offering public and on site courses in EMI/EMC/SI/RF subjects.

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LTE and the Evolution to 4G Wireless

Author: 

Moray Rumney

This book presents the latest details on LTE from a practical and technical perspective. Written by Agilent's measurement experts, it offers a valuable insight into LTE technology and its design and test challenges. Chapters cover the upper layer signaling and system architecture evolution (SAE). Basic concepts such as MIMO and SC-FDMA, the new uplink modulation scheme, are introduced and explained, and the authors look into the challenges of verifying the designs of the receivers, transmitters and protocols of LTE systems.

RF Mentor Vlog Entries

Author: 

RF Mentor

RFMentor video logs are short video entries that give an overview of an RF topic or explore one of the resources here on the site in more detail. The videos are currently hosted on YouTube, so you can subscribe to that channel directly if you prefer.

Mixer Waveforms

Submitted by rfrobenius on

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