The field strength used to determine radiated immunity must be accurately monitored during any test although the levels vary greatly from consumer to military applications. At high frequencies, this ...

As supply voltages get lower it becomes more of a challenge to accurately measure power supply ripple, or “noise,” on the power bus. Complicating factors include faster-switching power converters, ...

A planar slab of negative-index material works as a superlens with sub-diffraction-limited resolution, as propagating waves are focused and, moreover, evanescent waves are reconstructed in the image ...

An oscilloscope and a device under test (DUT) constitute a de-facto system. In it, the most overlooked element is the interface between the two: the oscilloscope’s probes. Test personnel simply grab ...

Read the introduction to this series in Part 1, and the conclusion in Part 3, which covers stability. This is Part 2 of a three-part series which discusses how to properly test a DC/DC power supply to ...