Bias circuit
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United States of America Patent
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Jun 2, 2020
Grant Date -
Jun 6, 2019
app pub date -
Sep 14, 2018
filing date -
Dec 5, 2017
priority date (Note) -
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Abstract
A bias circuit for a bipolar RF amplifier is described. The bias circuit includes a current source coupled to a bias network. The bias network supplies a base current to the transistors in the amplifier circuit of the bipolar RF amplifier. The bias circuit includes a buffer coupled to the bias network and to the bipolar RF amplifier. The buffer provides additional base current to the amplifier circuit of bipolar RF amplifier and sinks avalanche current generated by the amplifier circuit of the bipolar RF amplifier.
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