The superheterodyne radio was one of the most successful forms of radio being used almost exclusively as the RF circuit...

The regenerative receiver or regen radio provides a significant increase in gain and selectivity over the standard tuned radio frequency...

The TRF, tuned radio frequency radio receiver was widely used in the early days of radio, but is hardly used...

Passive intermodulation can give rise to issues very hard to find - knowing what it is and how to look...

RF amplifier envelope tracking is an innovative technique to improve the efficiency of RF power amplifiers - it is widely...

The Doherty amplifier is used in many areas where high-efficiency RF power amplifiers are needed for high peak-to-average power ratio...

RF splitters combiners, couplers, and hybrids are a group of components used in many RF applications. RF combiners, splitters, couplers,...

RF or microwave circulators are typically three port devices based on ferromagnetic materials that steer RF power from one port...

RF filters are a key part of RF design as the filters enable the required signals to be selected and...

RF attenuators have a surprising number of uses: reducing high power signals for test equipment, level control; impedance matching, and...