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Abstract
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Article Information:
Low Noise Figure, High Gain Single LNA Cascaded with Cascoded LNA Amplifiers using Optimized Inductive Drain Feedback for Direct Conversion RF Front-end Receiver at Wireless Application
K. Pongot, A.R. Othman, Z. Zakaria, M.K. Suaidi and A.H. Hamidon
Corresponding Author: K. Pongot
Submitted: June 28, 2013
Accepted: July 17, 2013
Published: April 25, 2014 |
Abstract:
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This study presents a design of low noise figure, high gain LNA at 5.8 GHz with cascaded and cascoded techniques using inductive drain feedback that is applicable for the WiMAX 802.16 standard. The amplifier uses Pseudomorphic High Electron Mobility Transistor FHX76LP super HEMT low noise FET. The Ansoft Designer SV as an Electromagnetic (EM) simulator was used during the design process. The LNA was designed using the inductive drain feedback, inductive generation to the source and the T-network as a matching technique was used at the input and output terminal. The cascaded and cascoded Low Noise Amplifier (LNA) produced a gain (S21) of 43.94 dB and the Noise Figure (NF) of 0.61 dB. The input reflection (S11), output reflection (S22) and return loss (S12) are -10.65, -20.02 and -52.23 dB, respectively. The measured 3 dB bandwidth of 1.24 GHz has been achieved. The input sensitivity is -84 dBm exceeded the standards required by IEEE 802.16 has been observed.
Key words: Cascaded and cascoded LNA, IEEE 802.16, inductive drain feedback, RF front-end, , ,
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Cite this Reference:
K. Pongot, A.R. Othman, Z. Zakaria, M.K. Suaidi and A.H. Hamidon, . Low Noise Figure, High Gain Single LNA Cascaded with Cascoded LNA Amplifiers using Optimized Inductive Drain Feedback for Direct Conversion RF Front-end Receiver at Wireless Application. Research Journal of Applied Sciences, Engineering and Technology, (16): 3236-3247.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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