Archive for the ‘Electromagnetics’ Category

Looking at radio wave interaction as an electromagnetic Newton’s cradle

Wednesday, July 16th, 2014

The interaction of radio waves in free space has never been much of a concern to this wireless engineer. Propagation models do a pretty good job of estimating received signal strength. Receivers are designed to select desired signals and reject undesired ones, within limits. “Interference takes place in the receiver,” I’ve heard more than once. Yes, there are a lot of signals in the air at once, but I’m more interested in the end result.