RF power amplifier
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An RF power amplifier is a type of electronic amplifier used to convert a low-power radio-frequency signal into a larger signal of significant power, typically for driving the antenna of a transmitter. It is usually optimized to have high efficiency, high output Power(P1dB) compression, good return loss on the input and output, good gain, and optimum heat dissipation.
RF amplifiers formerly were all made used vacuum tubes (called valves in some English-speaking countries. Tubes are still used for exceptionally high-power transmissions; tube- or valve-based amplifiers are discussed separately in the Wikipedia article Valve RF amplifier.
The basic applications of the RF power amplifier include driving to another high power source, driving a transmitting antenna and exciting microwave cavity resonators. Among these applications, driving transmitter antennas is most well known. The transmitter–receivers are used not only for voice and data communication but also for weather sensing (in the form of a radar).
Wideband amplifier design
is defined as the breakdown voltage
is defined as the knee voltage
|Wikimedia Commons has media related to RF power amplifiers.|
- Carlos Fuentes (October 2008). "Microwave Power Amplifier Fundamentals". Retrieved 2013-03-05.
Khanifar, Ahmad. "RF Power Amplifier Design for Digital Predistortion". http://www.linamptech.com/. Retrieved 1 December 2014.
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