Design of a 10 GHz Low-Noise Amplifier

Low-noise amplifiers (LNAs) play a critical role in the radio receiver front end, amplifying very low-power signals received by the antenna that are often just above the noise floor without significantly degrading the signal-to-noise ratio. LNA designers must minimize noise by considering trade-offs that include impedance matching, choosing the amplifier technology (such as low-noise transistors), and selecting low-noise biasing conditions. This article describes how NI AWR Design Environment, specifically Microwave Office circuit design software, was used to design a 10 GHz LNA with improved performance in the X-band frequency range.

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