Design and Realization of an S-Band Microwave Low-Noise Amplifier for Wireless RF Subsystems

—This study undertakes the theoretical design, CAD modeling, realization, and performance analysis of a microwave low-noise amplifier (LNA) which has been accurately developed for operation at 3.0 GHz (S-band). The objective of this research is to thoroughly analyze and develop a reliable microstrip LNA intended for a potential employment in wireless communication systems, and satellite applications. The S-band microwave LNA demonstrates the appropriateness to develop a high-performance and well-established device realization for wireless RF systems. The microwave amplifier simulations have been conducted using the latest version of the AWR Design Environment software. I. INTRODUCTION HE modern emerging of the high-speed and high-data rate wireless communications has encouraged intensive high-profile research in both the academic and industrial fields in order to develop high-performance RF/microwave systems for the potential employment in digital wireless communications. Radiowave propagation is very lossy, so the signals travelling from the transmitter normally suffer from degradation. When these signals are received at the receiver antenna, they are very weak. Low-noise amplifier (LNA), which is the combination of the low-noise, high-gain, and stability over the entire range of operating frequency and is placed very close to the antenna, is crucial RF component employed in communication systems in order to amplify these very weak RF signals captured by the antenna, and also to boost desired signal power while adding as little noise and distortion as possible so that the noise added by later components of the RF receiver chain has less effect on the signal-to-noise ratio (SNR), and the overall performance.