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Doherty amplifier

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Doherty amplifier [′dō·ərd·ē ‚am·plə‚fī·ər]
(electronics)
A linear radio-frequency power amplifier that is divided into two sections whose inputs and outputs are connected by quarter-wave networks; for all values of input signal voltage up to one-half maximum amplitude, section no. 1 delivers all the power to the load; above this level, section no. 2 comes into operation.
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A Doherty amplifier consists of two amplifiers that operate under different transmit-signal conditions and typically require separate transistors for each amplifier.
Freescale Introduces RF Power Devices and Reference Designs for ... by Business Wire
Analysis of the hot topic of Doherty amplifier design, plus a description of advanced techniques based on multi-way and multi-stage architecture solutions.
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Launches Industry's Most Power Efficient Discrete Doherty Amplifier Based on the Gen 7 LDMOS BLF7G22L-130 Transistor EINDHOVEN, Netherlands -- Expanding its portfolio of industry-leading RF power solutions, NXP, the independent semiconductor company founded by Philips, today unveiled the world's most efficient 3-way Doherty amplifier, enabling a new standard of energy efficient RF base stations.
NXP Demonstrates Novel 3-way Doherty Reference Design, Setting Path ... by Business Wire
 
 
 
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