Radiated Emissions Measurements: OATS and ALSE Methods
This article is devoted to the radiated emissions measurements. These measurements can be performed either at the Open Area Test Site (OATS) or in an Absorber-Lined Shielded Enclosure (ALSE).
Standing Waves on Transmission Lines and VSWR Measurements
Foundations
Consider the transmission line circuit shown in Figure 1. A sinusoidal voltage source with its source impedance drives a lossless transmission line with characteristic impedance ZC, terminated in... Read More...
Current Probe Measurements in EMC Testing
This article focuses on the current probes used in EMC measurements and testing.
Conducted Emissions Measurements: Voltage Method
This article describes the voltage method of the conducted emissions measurements.
Topology and Characterization of a DC Line Impedance Stabilization Network
This article discusses the topology and characteristics of a dc Line Impedance Stabilization Network (LISN), often referred to as an Artificial Network (AN).
Human-Body Model and Electrostatic Discharge (ESD) Tests
Consider a spherical capacitor consisting of two concentric, conducive spheres separated by a dielectric.
Spectra of Digital Clock Signals
Reducing the duty cycle (the pulsewidth) reduces the low-frequency spectral content of the waveform, but does not affect the high-frequency content.
Crosstalk Reduction Between PCB Traces
When two circuits are in the vicinity of one another, a signal propagating in one circuit can induce a signal in another circuit, due to capacitive (electric field) and/or inductive (magnetic field) coupling between the circuits. This phenomenon is referred to as crosstalk.
Transmission Line Reflections at a Discontinuity
In this article, we consider the effects of a discontinuity along the transmission line which occurs when the transmission line characteristic impedance changes.