%0 Journal Article
%@ 0973-4562
%A Tran, Van Hoi
%A Nguyen, Xuan Truong
%A Ngo, Thi Lanh
%A Bach, Gia Duong
%D 2016
%F SisLab:1584
%I Research India Publications
%J International Journal of Applied Engineering Research
%N 8
%P 5646-5652
%T Design of a C-Band Low-Noise Block Front-end for Satellite Receivers
%U https://eprints.uet.vnu.edu.vn/eprints/id/eprint/1584/
%V 11
%X This paper describes the study, design and fabrication of a C-band low-noise block front-end for satellite receivers. The front-end consists of a low-noise amplifier, two band pass filters in C-band and L-band, a down-converter and an intermediate frequency amplifier. To reduce noise figure and increase bandwidth, the low-noise amplifier was designed using T-type of matching network with negative feedback. The down-converter used a voltage controlled oscillator with phase locked loop to reduce the phase noise. The front-end converts input signals from C-band (3.4 GHz - 4.2 GHz) to the L-band (950 MHz - 1750 MHz). The low-noise block has successfully been designed and fabricated with parameters: Overall gain is greater than 60 dB; the noise figure is less than 2dB; phase noise of local oscillator obtains -107.57dBc /Hz at 50KHz.