Load Pull measurements for GSM and CDMA power modules

Fennelly, Michael ; Wandrei, David (1998) Load Pull measurements for GSM and CDMA power modules. In: Gallium Arsenide Applications Symposium. GAAS 1998, 5-6 October 1998, Amsterdam, The Netherlands.

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Abstract

A load pull system that has CDMA and GSM stimulus and response capability is presented. This novel system performs fundamental and harmonic tuning using a single, solid-state, impedance tuner without a multi-plexer or harmonic loops. Measurements of power, efficiency and spectral re-growth are obtained. Special consideration is made for the burst requirements of GSM. This paper presents the measurement system, harmonic tuning, CDMA and GSM examples.

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