Solid-state RF power amplifier is a key component of RF front-end transmission path,
its function is to transmit low-power RF signals amplification to obtain a large enough
RF output power, which is then fed to the antenna to radiate out. Design a good power
amplifier,It needs to take into account the gain, power output, bandwidth, amplification
efficiency, linearity, input-output impedance matching and heat dissipation facial performance.