Simulation of a Multi-band Class E PA with a PWM Envelope-coded Signal, for a Multi-radio Transmitter

Antoine Diet 1 Martha Suarez 2 Fabien Robert 2, 3 Martine Villegas 2 Genevieve Baudoin 2
1 L2S - Laboratoire des signaux et systèmes
2 ESYCOM - Electronique, Systèmes de communication et Microsystèmes
3 ST-CROLLES - STMicroelectronics [Crolles]
Abstract : This paper focuses on the design of a highly efficient multi-band Power Amplifier (PA), for high Peak to Average Power Ratio (PAPR) signals in the context of a multi-radio transmitter design. Solutions are currently based on polar decomposition of the signal and constant power signal amplification. A simple methodology based on the tuning of an LC network is presented. The goals are to provide high efficiency at several frequency bands. This method implies the collaboration between transient non-linear simulations and frequency simulations/optimization techniques. Once the PA is optimized with a given frequency profile, we tested the amplification of Orthogonal Frequency Division Modulation (OFDM) signal, with Pulse Width Modulation (PWM) envelope coding, and compare with the results of the harmonic simulations. Conclusions are given about such these architectures for multi-radio.
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Submitted on : Thursday, November 17, 2011 - 6:04:11 AM
Last modification on : Friday, December 20, 2019 - 11:48:03 AM
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Antoine Diet, Martha Suarez, Fabien Robert, Martine Villegas, Genevieve Baudoin. Simulation of a Multi-band Class E PA with a PWM Envelope-coded Signal, for a Multi-radio Transmitter. International Journal on Communications Antenna and Propagation, 2011, 1 (3), pp.290 - 295. ⟨hal-00641204⟩

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