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Nguyen Huu Duc
VNU University of Engineering and Technology
Computer Science & IT Electrical & Electronics Engineering

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Design of a Front-End for Satellite Receiver Tran Van Hoi; Ngo Thi Lanh; Nguyen Xuan Truong; Nguyen Huu Duc; Bach Gia Duong
International Journal of Electrical and Computer Engineering (IJECE) Vol 6, No 5: October 2016
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1306.962 KB) | DOI: 10.11591/ijece.v6i5.pp2282-2290

Abstract

This paper focuses on the design and implementation of a front-end for a Vinasat satellite receiver with auto-searching mechanism and auto-tracking satellite. The front-end consists of a C-band low-noise block down-converter and a L-band receiver. The receiver is designed to meet the requirements about wide-band, high sensitivity, large dynamic range, low noise figure. To reduce noise figure and increase bandwidth, the C-band low-noise amplifier is designed using T-type of matching network with negative feedback and the L-band LNA is designed using cascoded techniques. The local oscillator uses a voltage controlled oscillator combine phase locked loop to reduce the phase noise and select channels. The front-end has successfully been designed and fabricated with parameters: Input frequency is C-band; sensitivity is greater than -130 dBm for C-band receiver and is greater than -110dBm for L-band receiver; output signals are AM/FM demodulation, I/Q demodulation, baseband signals.
Co-Authors Bach Gia Duong Ngo Thi Lanh Nguyen Xuan Truong Tran Van Hoi