Power amplifier second harmonic manipulation: mmWave application and test results

Betti-Berutto, A. ; Satoh, T. ; Khandavalli, Chandra ; Giannini, Franco ; Limiti, Ernesto (1999) Power amplifier second harmonic manipulation: mmWave application and test results. In: Gallium Arsenide Applications Symposium. GAAS 1999, 4-5 October 1999, Bologna, Italy.

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Abstract

The effectiveness of second harmonic manipulation for power performance improvement at millimeter-wave frequencies is experimentally demonstrated. The new power amplifier stage clearly demonstrates superior performance with respect to a standard tuned load approach, both in terms of output power and power-added efficiency. Moreover, the IM3 test showed no significant differences in the two cases.

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