System and method for providing a switchless selectable input balanced low noise amplifier
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United States of America Patent
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Aug 1, 2017
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app pub date -
Jun 2, 2015
filing date -
Jun 3, 2014
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Abstract
A selective low noise amplifier (LNA) comprising an input hybrid coupler receives a first input and a second input and to provide a first output and a second output; and an output hybrid coupler receives a first input and a second input and to provide for at least one output. A first amplifier and a second amplifier, each respective amplifier in first and second parallel paths are couple to and between the first output and the second output, respectively, of the input hybrid coupler and the first input and the second input, respectively, of the output hybrid coupler. A phase controller coupled to at least one of the first input and the second input of the output hybrid coupler delays signals from the first and second inputs of the output hybrid coupler to the at least one output of the output hybrid coupler. A method is also disclosed.
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