A High-Linearity Blocker-Tolerant Cascode LNA for WiFi and IoT Devices
Year: 2025
Type: article
Abstract: In the field of modern wireless communication systems, designing Low-Noise Amplifiers (LNA) is essential to attaining increased signal sensitivity and overall system effectiveness as well as reducing noise inputs from later phases. Furthermore, in portable applications, the low noise figure (NF) and high gain are essential LNA performance criteria. Typically, LNA has problems with bandwidth, gain, stability, amplification, and noise performance. The right transistor selection, balanced impedance calibration, bias optimization, and circuit fine-tuning are necessary to overcome these obstacles. Furthermore, because of their superior noise performance, high input impedance, complementary metal-oxide semiconductor (CMOS) integration capabilities, low power operation, and suitability for a variety of frequency applications, metal oxide semiconductor field effect transistors (MOSFETs) are a common option in LNA design. The LNA exhibits exceptional linearity, amplification, and Noise Figure over a specified frequency range through simulation and continuous improvement. By developing a method for LNA construction that balances competing requirements and reveals efficient noise reduction strategies, this invention advances radio frequency (RF) circuitry. The results highlight how crucial a carefully considered circuit design and parameter tuning are to achieving exceptional LNA capabilities, making it suitable for integration into a variety of communication systems that require low noise and high sensitivity.
Authors: S. Mohan Das, Dr Kota Venkata Ramanaiah
Institution: Yogi Vemana University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W6912130239
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