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Industry News

Efficiency Comparison of a Digitally Predistorted and a Feed-forward Linearized Doherty Amplifier with Crest Factor Reduction

This article provides a direct performance comparison between a Doherty digital predistorted (DPD) amplifier and a Doherty feed-forward linearized power amplifier (DFFLPA) under various crest factor reduction levels. Based on experimental results at an...

May 4, 2007
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The increasing importance of spectral efficiency in mobile communication services, such as wideband code division multiple access (WCDMA) and orthogonal frequency division multiplexing (OFDM), has resulted in a fluctuating signal envelope. The large peak-to-average power ratio (PAPR) of these modulations requires base station power amplifiers to have a high...
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