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An Enhanced Doherty Amplifier Design Based on the Derivative Superposition Method

An enhanced 20 W Doherty amplifier with highly optimized linearity using the derivative superposition method (DSM) is proposed. DSM is a linearization technique based on the device’s transconductance characteristics. The gain compression...

April 6, 2007
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High linearity and high efficiency are important design issues in a high power amplifier for base station applications in modern wireless communications. High efficiency power amplifiers, combined with high linearity, have been very desirable. The Doherty amplifier is a technique for improving the efficiency at high output power back-off....
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