Van Hoi Tran and Thi Lanh Ngo and Xuan Truong Nguyen and Huu Duc Nguyen and Duong Bach Gia (2016) Design of a Front-End for Satellite Receiver. International Journal of Electrical and Computer Engineering, Vol.6, (No.5). P.2282-P.2290. ISSN 2088-8708
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.
|Subjects:||Electronics and Communications > Communications|
|Divisions:||Faculty of Electronics and Telecommunications (FET)|
|Deposited By:||Bạch Gia Dương|
|Deposited On:||29 Dec 2016 12:09|
|Last Modified:||29 Dec 2016 12:09|
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