ISSN: 2222-6990
Open access
This paper introduces the design and performance of a Low Noise Amplifier (LNA) aimed at Global Positioning System (GPS) applications operating at the L1 band (1.575 GHz). The LNA was developed using an AT41511 transistor from Avago Technologies, employing three different matching networks: lumped element, quarter-wave, and single-stub matching networks. Using Microwave Office Software for simulation, performance parameters such as noise figure and gain were evaluated. The single-stub matching network demonstrated the best performance, achieving a noise figure of 2.175 dB and a gain of 14.57 dB, surpassing the minimum design requirements for GPS systems. These findings highlight the superiority of the single-stub matching network for LNA design in GPS receivers.
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