Title :
Low noise amplifier design for LEO satellite applications
Author :
Dafalla, Z.I. ; David, S.R. ; Rahman, A.M.A.
Author_Institution :
Fac. of Eng. & Technol., Multimedia Univ., Melaka, Malaysia
Abstract :
This paper presents a novel approach for designing a low noise amplifier (LNA) intended for use in LEO (low earth orbit) satellite systems. The design was based on an MGA 52543 Agilent Technologies manufactured microwave transistor which produces a maximum gain of 15.8 dB and a minimum noise figure of 1.7 dB at the design frequency of 0.9 GHz. Microwave Office software was used in circuit designing and analysis, followed by a prototype implementation by using microstrip technology. The results obtained show that at the design frequency of 0.9 GHz a gain of 15.7 and a noise figure of 1.6 have been achieved, which are quite close to the specified ideal values.
Keywords :
UHF amplifiers; circuit CAD; microwave amplifiers; microwave transistors; satellite communication; 0.9 GHz; 15.7 dB; LEO satellite systems; LNA; MGA 52543 Agilent Technology; low earth orbit; low noise amplifier; microstrip technology; microwave office software; microwave transistor; Circuit analysis; Frequency; Gain; Low earth orbit satellites; Low-noise amplifiers; Manufacturing; Microwave circuits; Microwave technology; Microwave transistors; Noise figure;
Conference_Titel :
Information and Communication Technologies: From Theory to Applications, 2004. Proceedings. 2004 International Conference on
Print_ISBN :
0-7803-8482-2
DOI :
10.1109/ICTTA.2004.1307759
