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High Gain Cascaded Low Noise Amplifier using T-Matching Network

This project presents a design of high gain cascaded low noise amplifier (LNA), which operates at 5.8 GHz frequency for WiMAX application. The LNA designed used T-matching network consisting of lump reactive elements and microstrip at the input and the output matching load uses quarter wavelength te...

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Bibliographic Details
Main Authors: Othman , A. R, Hamidon , A. H, Abdul Wasli. , C, Ting , J. T. H, Mustaffa , M. F, Ibrahim , A.B
Format: Article
Language:English
Published: JTEC 2010
Subjects:
Q Science (General)
Online Access:http://eprints.utem.edu.my/id/eprint/6795/1/JTEC2010-1.pdf
http://eprints.utem.edu.my/id/eprint/6795/
http://jtec.utem.edu.my
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Summary:This project presents a design of high gain cascaded low noise amplifier (LNA), which operates at 5.8 GHz frequency for WiMAX application. The LNA designed used T-matching network consisting of lump reactive elements and microstrip at the input and the output matching load uses quarter wavelength techniques. A cascaded LNA is developed in this project contribute a high gain of 36.8 dB with overall noise figure of 1.3 dB. The overall measured bandwidth measures is 1.240 GHz with S parameters S11, S12 and S22 measured are -11.4dB, -39.1dB and -12.3dB respectively. The input sensitivity of the LNA is -80dBm which compliant with the IEEE 802.16 WiMAX application. The LNA used FET transistor FHX 76 LP from Eudina Inc.

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