Self-outphasing Chireix power amplifier using device input impedance variation

Jang, Haedong; Wilson, Richard; Canning, Tim; Seebacher, David; Schuberth, Christian; Arigong, Bayaner

doi:10.1109/mwsym.2016.7540027

Cited by 9 publications

(1 citation statement)

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“…These components should have an effective resistance that depends on the input power, according to an appropriate law. These non-linear variable resistances can be practically realised exploiting either a diode-based network [112] or the intrinsic input impedance variation with the drive level that affects non-ideal active devices [118]. …”

Section: Single-input Architecturesmentioning

confidence: 99%

High Efficiency Power Amplifiers for Modern Mobile Communications: The Load-Modulation Approach

et al. 2017

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Abstract:Modern mobile communication signals require power amplifiers able to maintain very high efficiency in a wide range of output power levels, which is a major issue for classical power amplifier architectures. Following the load-modulation approach, efficiency enhancement is achieved by dynamically changing the amplifier load impedance as a function of the input power. In this paper, a review of the widely-adopted Doherty power amplifier and of the other load-modulation efficiency enhancement techniques is presented. The main theoretical aspects behind each method are introduced, and the most relevant practical implementations available in recent literature are reported and discussed.

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Section: Single-input Architecturesmentioning

confidence: 99%