Low-Noise Amplifier

Abstract: a low-noise amplifier, lna, circuitry for amplifying an input signal to an output signal; the circuitry comprising a first cascode amplifier and a second complementary cascode amplifier, respectively connected to a first load and a second load; wherein the first load and the second load are coupled and wherein the output signal is an output of the first or second cascode amplifier; wherein the first cascode amplifier comprises a first initial amplification stage and a first transistor; wherein the second cascode amplifier comprises a second initial amplification stage, and a second transistor, arranged in a common-gate configuration, in cascode with the second initial amplification stage and connected to the second load; and wherein inputs of the first and second transistors are capacitively coupled such that the first and second transistors are connected at frequencies higher than a frequency characterising the capacitive coupling.

Inventor(s): Anoop Bhat, Paul Mateman

CPC Classification: H03F1/223 (AMPLIFIERS)

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