In 1972, Martin Jue was a young entrepreneur who decided to use his electrical engineering expertise to start a new business, MFJ Enterprises, in Starkville, his adopted hometown. The cottage industry ...

The need for what’s called antenna tuning—either by adjusting the antenna itself or via a matching circuit between power-amplifier output and the antenna—is almost as old as wireless itself. Even in ...

If you want to deliver the maximum power to a load — say from a transmitter to an antenna — then both the source and the load need to have the same impedance. In much of the radio communication world, ...