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US Patent 11245363 Efficiency, symmetrical Doherty power amplifier

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Patent attributes

Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

Patent Inventor Names

Gerard Bouisse0

Date of Patent

February 8, 2022

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Patent Application Number

166070790

Date Filed

April 24, 2017

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Patent Citations

US Patent 10305437 Doherty amplifier

Patent Citations Received

US Patent 12136901 Broadband, high-efficiency, non-modulating power amplifier architecture

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US Patent 11843352 Inverted Doherty power amplifier with large RF and instantaneous bandwidths

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US Patent 11888448 Low-load-modulation broadband amplifier

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US Patent 11990871 Inverted Doherty power amplifier with large RF fractional and instantaneous bandwidths

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US Patent 12028022 Hybrid power amplifier with GaN-on-Si and GaN-on-SiC circuits

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US Patent 11705869 Low-load-modulation power amplifier

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US Patent 11716058 No-load-modulation, high-efficiency power amplifier

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Patent Primary Examiner

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Patent abstract

Apparatus and methods for an improved-efficiency Doherty amplifier are described. The Doherty amplifier may include a two-stage peaking amplifier that transitions from an “off” state to an “on” state later and more rapidly than a single-stage peaking amplifier used in a conventional Doherty amplifier. The improved Doherty amplifier may operate at higher gain values than a conventional Doherty amplifier, with no appreciable reduction in signal bandwidth.

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