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Class F Amplifiers

Class F Amplifiers

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Several different power amplifier topologies that provide high efficiency are known as Class F amplifiers. Although these topologies may appear distinct from one another, they all use a multiple-resonator output filter. This filter controls the harmonic content of the collector voltage and/or current, by shaping their waveforms to reduce the power dissipated on the active device. This, in turn, increases the collector efficiency.

Chapter Contents:

  • 5.1 Class F1 Power Amplifiers
  • 5.2 Class F2 Power Amplifiers
  • 5.3 Class F3 Power Amplifiers
  • 5.4 References

Inspec keywords: power amplifiers; resonator filters

Other keywords: power dissipation reduction; power amplifier topologies; collector voltage; harmonic content; collector efficiency; class F amplifiers; multiple-resonator output filter

Subjects: Amplifiers; Passive filters and other passive networks

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