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Communication Dans Un Congrès Année : 2015

A compact measurement set-up for envelope-tracking RF PAs with calibrated sensing of baseband V/I at the supply terminal

Résumé

This paper presents a compact set-up to perform automated measurements of RF PAs under envelope-tracking (ET) operation. In addition to RF signal generation and acquisition, it allows calibrated measurements of the baseband voltage and current at the supply terminal with up to 40 MHz bandwidth, enabling instantaneous efficiency measurements. The presented set-up is used to extract two different shaping tables, and to test ET operation with a 5 MHz WCDMA and a 20 MHz LTE signals at 838 MHz. The used devices are an InGaP/Silicon RF power amplifier (PA) from Skyworks and a high voltage extra fast complementary bipolar (XFCB) power modulator (PM) from Analog Devices.
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Dates et versions

hal-01345720 , version 1 (15-07-2016)

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Couvidat Julien, Gian Piero Gibiino, Guillaume Pailloncy, Marc Vanden Bossche, Anthony Ghiotto, et al.. A compact measurement set-up for envelope-tracking RF PAs with calibrated sensing of baseband V/I at the supply terminal. Microwave Measurement Conference, 2015 86th ARFTG, Dec 2015, Atlanta, United States. ⟨10.1109/ARFTG.2015.7381468⟩. ⟨hal-01345720⟩
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