Online Far-field eLearning

The Friis Transmission Equation This course covers the Friis transmission equation. This equation models the coupling between two antennas under the assumption of far-field and free-space conditions. It has many applications in antenna measurement, communication, radar, and other areas. This is a short introductory course that assumes basic knowledge of the decibel and some basic RF concepts.  more...

Gain Extrapolation Antenna Measurements This is a short course on the most accurate method of determining far-field gain. In this procedure coupling data for at least three pairs of antennas are measured as a function of distance. This data is then fit to a polynomial as a function of 1/ r. This course provides a reference for those who are interested in implementing gain extrapolation.  more...

Anechoic Chamber, Near-Field, and Outdoor Ranges The purpose of this course is to provide a short survey of the various types of antenna test ranges that exist, as well as some information on some of the advantages and pitfalls of each. This is not a particularly technical course, but it serves as a basic introduction of the more advanced courses to follow this one. Some of the safety issues and operational problems of these chambers will also  more...

MEAS450 - Basic Far-Field Antenna Measurement This is a course on far-field antenna measurements. It describes the basic concepts involved, as well as an introduction on how the data can be processed.  more...