Transistors - Bipolar (BJT) - RF

Bipolar junction transistors (BJTs) are a type of transistor that uses both electrons and holes as charge carriers. RF (radio frequency) bipolar transistors are specialized BJTs that are designed for use in high-frequency radio frequency circuits, such as those used in wireless communication systems. RF bipolar transistors are commonly used in applications such as RF amplifiers, mixers, and oscillators. They offer high gain, low noise, and good linearity, making them suitable for a wide range of RF applications. Unlike MOSFETs (metal-oxide-semiconductor field-effect transistors), which are another type of transistor, BJTs are current-controlled devices, meaning that the current flowing through the transistor controls the flow of current through the device. This makes them well-suited for use in RF circuits where low-noise, high-gain performance is required.