Distributed amplifier having separately biased sections

Distributed amplifier having separately biased sections

A distributed amplifier (40) and a method (100) of operating the distributed amplifier (40) are provided in accordance with the present invention. The distributed amplifier (40) comprises an input transmission line (48), an output transmission line (50) and N amplifier sections (42,44,46) having a t...

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1. Verfasser: PAVIO ANTHONY M.,ZHAO LEI
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AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
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creator PAVIO ANTHONY M.,ZHAO LEI
description A distributed amplifier (40) and a method (100) of operating the distributed amplifier (40) are provided in accordance with the present invention. The distributed amplifier (40) comprises an input transmission line (48), an output transmission line (50) and N amplifier sections (42,44,46) having a transistor (52) connected to the input transmission line (48) and the output transmission line (50). The distributed amplifier (40) also comprises N independent biasing sources (82,84,86) configured to provide N independent biasing voltages for each transistor (52) of the N amplifier sections (42,44,46) for active operation, wherein the distributed amplifier (40) is configured such that when a first independent biasing voltage of said N independent biasing voltages is modified for a first transistor of a first section of the N amplifier sections, the first transistor of the first section of the N amplifier sections is configured for a non-active operation and an output power of the distributed amplifier (40) is reduced without a substantial degradation in an efficiency of the distributed amplifier (40).
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subjects AMPLIFIERS
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
title Distributed amplifier having separately biased sections
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