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Design of Low Noise Amplifier using Positive Feedback Gain Enhancement Technique


Affiliations
1 Department of ECE, PET Engineering College,Vallioor, India
2 Department of ECE, PET Engineering College, Vallioor, India
3 Department of ECE, MEPCO Schlenk Engineering College, Sivakasi, India
 

Low Noise Amplifier (LNA) is a digital amplifier that amplifies a completely low strength signal without drastically degrading its sign to the noise ratio. It's far in any other case known as block down converter. Its miles designed to decrease the additional noise. Here, the low noise amplifier (LNA) is designed the use of a new configuration of high-quality remarks advantage enhancement technique that's suitable for low energy and coffee noise packages. On this proposed technique, additional wonderful comments capacitor is attached to any of the transistor terminal, which will increase voltage benefit due to reducing the entire transconductance. The everyday amplifier circuit is designed the use of energy constrained simultaneous noise and input matching (PCSNIM) method. This technique is used to gain simultaneous enter impedance and minimal noise matching. By means of using this advantage stronger method, the gain of the LNA has been elevated and noise parent is reduced without sacrificing bandwidth, linearity and electricity intake. In this paper we attain 8.620 dB of gain at 4GHz frequency by way of the usage of superb feedback capacitor and interstage matching inductor and also the design of Ultra Wide Band (UWB) LNA provides 14.62dB gain by using inductive source degeneration topology.

Keywords

Block Down Converter, Gain, Positive Feedback, Transconductance.
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  • Design of Low Noise Amplifier using Positive Feedback Gain Enhancement Technique

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Authors

P. Kannan
Department of ECE, PET Engineering College,Vallioor, India
A. Antony Licy
Department of ECE, PET Engineering College, Vallioor, India
R. Shantha Selva Kumari
Department of ECE, MEPCO Schlenk Engineering College, Sivakasi, India

Abstract


Low Noise Amplifier (LNA) is a digital amplifier that amplifies a completely low strength signal without drastically degrading its sign to the noise ratio. It's far in any other case known as block down converter. Its miles designed to decrease the additional noise. Here, the low noise amplifier (LNA) is designed the use of a new configuration of high-quality remarks advantage enhancement technique that's suitable for low energy and coffee noise packages. On this proposed technique, additional wonderful comments capacitor is attached to any of the transistor terminal, which will increase voltage benefit due to reducing the entire transconductance. The everyday amplifier circuit is designed the use of energy constrained simultaneous noise and input matching (PCSNIM) method. This technique is used to gain simultaneous enter impedance and minimal noise matching. By means of using this advantage stronger method, the gain of the LNA has been elevated and noise parent is reduced without sacrificing bandwidth, linearity and electricity intake. In this paper we attain 8.620 dB of gain at 4GHz frequency by way of the usage of superb feedback capacitor and interstage matching inductor and also the design of Ultra Wide Band (UWB) LNA provides 14.62dB gain by using inductive source degeneration topology.

Keywords


Block Down Converter, Gain, Positive Feedback, Transconductance.

References