Antennas come in many shapes and sizes, with a variety of characteristics making them more or less suitable for various applications. The average hacker with only a middling exposure to RF may be ...

In many short range applications, the overall size of transmitter or receiver modules is small compared to the wavelength. The ground plane is therefore usually part of the antenna and radiates or ...

Using digital techniques has caused a resurgence of interest in VLF — very low frequency — radio. Thanks to software-defined radio, you no longer need huge coils. However, you still need a suitable ...