Post-distortion linearized Doherty power amplifier based on ferroelectric capacitor
A ferroelectric capacitor and post-distortion technology, applied in improving amplifiers to reduce nonlinear distortion, amplifiers, electrical components, etc., can solve the problems of Doherty power amplifier linearity improvement, power amplifier low efficiency, use restrictions, etc., to achieve strong practicability and Application prospect, high linearity effect
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[0019] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings; it should be understood that the preferred embodiments are only for illustrating the present invention, rather than limiting the protection scope of the present invention.
[0020] Such as figure 1 As shown, a post-distortion linearized Doherty power amplifier based on ferroelectric capacitors includes a main power amplifier module 1 and an auxiliary power amplifier module 2 connected in parallel, and the input terminals of the main power amplifier module and the auxiliary power amplifier module are used as Doherty power The total input terminal of the amplifier, the input terminal of the auxiliary power amplifier module and the external input terminal are connected in series with a phase shift module, and the output terminal of the main power amplifier module and the output terminal of the auxiliary module are connected in parallel with a p...
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