Owing to diffraction effects, waves diverge when propagating in a homogeneous medium. However, in practical applications, omnidirectional radiation is not always welcomed. Controlling and modulating ...

Physicists have found a radical new way confine electromagnetic energy without it leaking away, akin to throwing a pebble into a pond with no splash The theory could have broad ranging applications ...

There are many causes of radiated emissions and the product designer needs to be able to identify the “hidden antennas” that cause this. An important concept to grasp is the electrical dimension of an ...

This 4-part report discusses antenna fundamentals and the various types of antennas used for short range devices. Fundamentals are presented along with practical design principals. It is excerpted ...