Feasibility Study of Noise-Cancelling Low Noise Amplifiers for Millimeter-Wave Wi-Fi 8 Applications

A literature review on low noise amplifier (LNA) designs was conducted to validate the feasibility of an LNA design. The LNA is meant to operate in a receiver system for a Wi-Fi 8 communication system, which requires ultra-high reliability in its communication links. Additionally, due to its requirement for high data throughput, the system will operate in the millimeter wave (mm-wave) frequency range as this would allow for large bandwidths. Due to this frequency range as well as its potential operation in industrial applications, techniques to help mitigate any drawbacks were explored. The use of the noisecancelling technique was identified as a suitable one, as its improvement in the noise performance of the receiver system can ensure that a communication link can be reliably maintained. The literature review first identified designed LNAs for other related wireless communication technologies, such as previous generations of Wi-Fi and WiGig to understand the requirements needed for such a system. Next, a review of LNAs designed to operate in the mm-wave were conducted to help understand the effects encountered in this range as well as any useful techniques. Finally, a review of noise-cancelling LNAs designed in the mm wave and for wireless communication purposes was performed for similar reasons. With this review performed, a comprehensive understanding was obtained to aid in the design of an LNA for Wi-Fi 8 purposes.