Bias arrangements with linearization transistors sensing RF signals and providing bias signals at different terminals

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United States of America

PATENT NO 11303309
SERIAL NO

17065084

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Abstract

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Bias arrangements for amplifiers are disclosed. An example arrangement includes a bias circuit, configured to produce a bias signal for the amplifier, and a linearization circuit, configured to improve linearity of the amplifier by modifying the bias signal based on an RF signal indicative of an RF input signal to be amplified by the amplifier. The linearization circuit includes a bias signal input for receiving the bias signal, an RF signal input for receiving the RF signal, and an output for providing a modified bias signal. The linearization circuit further includes at least a first linearization transistor, having a first terminal, a second terminal, and a third terminal, where each of the bias signal input and the RF signal input of the linearization circuit is coupled to the first terminal of the first linearization transistor, and the output of the linearization circuit is coupled to the third terminal of the first linearization transistor.

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Patent Owner(s)

  • ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Esmael, Mohamed Moussa Ramadan American Project, EG 8 15
Mobarak, Mohamed Giza, EG 6 17
Weheiba, Mohamed Cairo, EG 3 2

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