Chip for linearisation of RF power amplifiers using power feedback

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Chip for linearisation of RF power amplifiers using power feedback

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The authors present an integrated circuit implementation of a simple and partly new RF power amplifier linearisation scheme based on power feedback. Experimental results show that the technique is well suited to the compensation of AM/AM distortion, and a reduction of 10 dB in the adjacent channel interference is achieved.

Inspec keywords: interference suppression; radiofrequency amplifiers; feedback amplifiers; linearisation techniques; power amplifiers; adjacent channel interference; analogue integrated circuits; compensation

Other keywords: integrated circuit implementation; AM/AM distortion compensation; ACI reduction; adjacent channel interference; RF power amplifiers; power feedback; amplifier linearisation scheme

Subjects: Semiconductor integrated circuits; Amplifiers

References

    1. 1)
      • J.-S. Cardinal , F.M. Ghannouchi . A new adaptive double envelope feedback (ADEF) linearizer for solid statepower amplifiers. IEEE Trans. , 7 , 1508 - 1515
    2. 2)
      • H. Kosugi , T. Matsumoto , T. Uwano . A high efficiency linear power amplifier using an envelope feedback method. Electron. Commun. Jpn. , 3 , 50 - 57
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