LNA Subsystem Specification: Electrical Engineering Lab Report

This lab report details the process of deriving specifications for a Low Noise Amplifier (LNA) subsystem based on the system-level specifications of a receiver operating in the Ku-band (12-16 GHz). The report begins with an introduction to the project's objectives, followed by the derivation of the LNA's gain and noise figure using AWR Microwave Office software. The student's then select a suitable commercial off-the-shelf (COTS) LNA component, the RLNA12G21GB, and justify its selection based on factors such as gain, noise figure, frequency range, return loss, OIP3, power supply requirements, and power consumption, comparing its specifications with the derived requirements. The report also includes a discussion on the advantages of wideband and multiband LNAs, along with graphical representations of the system's performance characteristics. The report concludes by referencing the selected LNA's features, including its low noise figure, output power, and operational characteristics across varying temperatures and frequencies. Finally, the report also considers the importance of impedance matching, linearity, and the impact of parasitic capacitance in the LNA design process.