White Papers and App Notes

Technical white papers and app notes from companies

ARTICLES

Multi-Tone for EMC: Testing, Theory and Practice

Multi-tone testing has many benefits. While the multi-tone methodology was initially implemented to increase the speed of immunity testing, it has been found that this method also improves equipment efficiency, offers greater flexibility to truly test the equipment (EUT) under real world threat conditions, and can be fully compliant to standards.


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High-Power Solid State Pulsed Amplifiers for EMC

For years, when discussing high field-strength electromagnetic compatibility (EMC) radiated susceptibility testing, Traveling Wave Tube Amplifier (TWTA) technology has been the only available option for pulsed field generation. Now, there is a very attractive alternative to this technology.


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Keysight ADS

A well known electronic design automation software mainly used for RF, microwave, and high speed digital applications.
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SIwave: Port Radius and Port Impedance Impact on Accuracy

ANSYS

This technical paper provides correlation studies between measured data and multiple field solver technologies, providing multiple references to different types of analyses that include AC frequency domain comparisons for both power integrity and signal integrity. It includes time domain characterization of the results using TDR and noise measurements for both packages and printed circuit boards. 


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Impedance Scanner

ANSYS

One of the most critical design parameters for PCB manufacturers and designers is the impedance of PCB routing. Failure to meet certain impedance design parameters can make the product on the printed circuit board not meet design specifications. This application note will introduce the capabilities for SIwave to automatically, and quickly, scan the entire PCB or package layout and determine the anticipated impedance using the design stackup to define the dielectric materials and layer thickness.


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SIwave to Icepak Coupling

ANSYS

In today’s ever-changing PCB requirements arena, DC drop caused by IR losses are becoming a bigger concern for design engineers. Along with the IC currents demands increasing the currents carried on the PCB are rising as the voltages, and voltage margins, decrease. As the currents increase so do the heating effects of IR drop and their consequences to the PCB design. SIwave introduces a new solver type for design engineers to investigate preliminary thermal performance on designs.


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DOCUMENTS AND FILES

EUT Monitoring with Digital Oscilloscopes

This application note describes how to use the mask and limit test features of the R&S®RTO, R&S®RTE and R&S®RTM Digital Oscilloscopes for EUT monitoring of signal forms, jitter etc. with the R&S®EMC32 Measurement Software. The mask test function allows autonomous characterization of digital signal integrity during EMS tests. R&S®EMC32 software records violations of user defined limits or mask templates and evaluates the immunity threshold at frequencies of critical electromagnetic susceptibility.

Fundamentals of Vector Network Analysis

One of the most common measuring tasks in RF and SI engineering involves analysis of circuits (networks). A network analyzer is an instrument that is designed to handle this job with great precision and efficiency. Circuits that can be analyzed using network analyzers range from simple devices such as filters and amplifiers to complex modules used in communications satellites.