摘要
Abstract
In order to facilitate the engineering production and maintenance of equipment, three types of miniature and modular low noise amplifier (LNA) with dimensions of 12.7 mm×12.7 mm×2 mm are designed, in which the matching networks of frequency compensation are adopted based on a single transistor ATF-54143. Their operating bandwidths are 1.1~1.7 GHz, 1.7~2.4 GHz, and 2.4~3.0 GHz respectively. Firstly, The design steps of DC bias, input and output matching, stability are introduced; Subse-quently, The linear and nonlinear performance of LNAs and the components parameters are simulated and optimized with EDA tools ADS;Lastly, the designed PCBs are assembled and tested with RF measurement instruments. The LNAs exhibit noise figure of less than 1.5 dB and gain flatness of less than 2.2 dB, and meet the design requirements.关键词
低噪声放大器/小型化/模块化/ADS电路仿真Key words
low noise amplifier/miniaturization/modularization/circuits simulation using ADS分类
信息技术与安全科学
