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<p><strong>What is radio frequency power amplifier?</strong></p> <p>The <a href="https://lcantennas.com/overview-of-radio-frequency-power-amplifier/">radio frequency power amplifier</a> (<a href="https://lcantennas.com/product-category/antenna-accessories/amplifiers-and-repeaters/">RF Power Amplifier</a> or RF PA) is the main part of the transmitting system, and its importance is self-evident.</p> <p>In the pre-stage circuit of the transmitter, the RF signal power generated by the modulation oscillator circuit is very small, and it needs to go through a series of amplification (buffer stage, intermediate amplification stage, final power amplification stage) to obtain enough RF power before it can be fed Radiate to the antenna.</p>