International Journal of Innovative Research in Science, Engineering and Technology, 2015
LNA design meets different challenges because of its simultaneous requirements like good transist... more LNA design meets different challenges because of its simultaneous requirements like good transistor selection, suitable DC biasing network, high gain, low noise figure, good input-output matching circuits, high linearity and good stability. In this paper we have chosen Avago Technologies ATF-58143. The results for Q-point, DC-Bias, Stability analysis are given using Agilent ADS.
The aims of this project are to design and implement Low Noise Amplifier in the Ultra Wide Band f... more The aims of this project are to design and implement Low Noise Amplifier in the Ultra Wide Band frequency, Realization of Microstrip Band Pass Filter Design and Realization of Low Pass Filter using stepped impedance technique. This project proposes the wideband LNA with analyses on the key performance factors required for UWB LNA design, such as noise performance, and linearity over a wide bandwidth. The LNA is designed by using 0.15μm GaAs pHEMT process. The first stage is optimized for noise matching and the resistive shunt-feedback stage provides wideband gain and good stability. First stage transistor is driving second stage along with total current. Transistor M1 is biased with drain voltage of 0.98V with gate biased at -0.1V and provides a sufficient current to drive transistor M2. A novel design is proposed here where a unique technique is applied to the LNA. The proposed LNA consists of two stages, first is acting as a pull down amplifier as its drain is pull down using an LC cascade circuit which helps improving noise figure as well as broadband matching. Therefore it can be called as a totem pole technique circuit. The second stage is a power stage to improve broadband gain along with power. The entire simulation is carried out using the ADS tool. The simulated results obtained are sufficient enough so that it can be used for different wireless applications. Design and simulation of Microstrip coupled line band-pass filter is done at 2.40 GHz operating frequency, with 5th order Chebyshev 0.5 dB ripple and 200 MHz of bandwidth using ADS simulation software. The simulation result carried out reveal that they are in complete agreement with the design specifications The main types of distributed filters used today are combline, interdigital, parallelcoupled- line bandpass and bandstop, and stepped-impedance filters. The filter designed using stepped-impedance is also known as Hi-Z or Low-Z filters. Low-pass filter is implemented by microstrip lines using sections of varying characteristics impedance lines. The simulated results show that the cut-off frequency obtained is 3.04 GHz which is slightly greater than 2.8 GHz. Also layout of Low Pass filter is obtained. The layout obtained shows the concept of high and low impedance Low Pass filter also known as stepped impedance techniques.
This paper proposes 2GHz ~ 8GHz UWB LNA with totem pole technique for low noise figure. The LNA w... more This paper proposes 2GHz ~ 8GHz UWB LNA with totem pole technique for low noise figure. The LNA was designed using 0.15 µm GaAs pHMET process. The designed LNA was simulated in ADS tool. The LNA exhibits a S(2,1) of 33.4~29.7 dB, minimum noise figure is 1.383~1.391 dB, reverse isolation was better than 40 dB in entire band. The LNA draws 32 mA. Resistive feedback technique was used for wideband matching and low noise figure.
International Journal of Innovative Research in Science, Engineering and Technology, 2015
LNA design meets different challenges because of its simultaneous requirements like good transist... more LNA design meets different challenges because of its simultaneous requirements like good transistor selection, suitable DC biasing network, high gain, low noise figure, good input-output matching circuits, high linearity and good stability. In this paper we have chosen Avago Technologies ATF-58143. The results for Q-point, DC-Bias, Stability analysis are given using Agilent ADS.
The aims of this project are to design and implement Low Noise Amplifier in the Ultra Wide Band f... more The aims of this project are to design and implement Low Noise Amplifier in the Ultra Wide Band frequency, Realization of Microstrip Band Pass Filter Design and Realization of Low Pass Filter using stepped impedance technique. This project proposes the wideband LNA with analyses on the key performance factors required for UWB LNA design, such as noise performance, and linearity over a wide bandwidth. The LNA is designed by using 0.15μm GaAs pHEMT process. The first stage is optimized for noise matching and the resistive shunt-feedback stage provides wideband gain and good stability. First stage transistor is driving second stage along with total current. Transistor M1 is biased with drain voltage of 0.98V with gate biased at -0.1V and provides a sufficient current to drive transistor M2. A novel design is proposed here where a unique technique is applied to the LNA. The proposed LNA consists of two stages, first is acting as a pull down amplifier as its drain is pull down using an LC cascade circuit which helps improving noise figure as well as broadband matching. Therefore it can be called as a totem pole technique circuit. The second stage is a power stage to improve broadband gain along with power. The entire simulation is carried out using the ADS tool. The simulated results obtained are sufficient enough so that it can be used for different wireless applications. Design and simulation of Microstrip coupled line band-pass filter is done at 2.40 GHz operating frequency, with 5th order Chebyshev 0.5 dB ripple and 200 MHz of bandwidth using ADS simulation software. The simulation result carried out reveal that they are in complete agreement with the design specifications The main types of distributed filters used today are combline, interdigital, parallelcoupled- line bandpass and bandstop, and stepped-impedance filters. The filter designed using stepped-impedance is also known as Hi-Z or Low-Z filters. Low-pass filter is implemented by microstrip lines using sections of varying characteristics impedance lines. The simulated results show that the cut-off frequency obtained is 3.04 GHz which is slightly greater than 2.8 GHz. Also layout of Low Pass filter is obtained. The layout obtained shows the concept of high and low impedance Low Pass filter also known as stepped impedance techniques.
This paper proposes 2GHz ~ 8GHz UWB LNA with totem pole technique for low noise figure. The LNA w... more This paper proposes 2GHz ~ 8GHz UWB LNA with totem pole technique for low noise figure. The LNA was designed using 0.15 µm GaAs pHMET process. The designed LNA was simulated in ADS tool. The LNA exhibits a S(2,1) of 33.4~29.7 dB, minimum noise figure is 1.383~1.391 dB, reverse isolation was better than 40 dB in entire band. The LNA draws 32 mA. Resistive feedback technique was used for wideband matching and low noise figure.
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This project proposes the wideband LNA with analyses on the key performance factors required for UWB LNA design, such as noise performance, and linearity over a wide bandwidth. The LNA is designed by using 0.15μm GaAs pHEMT process. The first stage is optimized for noise matching and the resistive shunt-feedback stage provides wideband gain
and good stability. First stage transistor is driving second stage along with total current.
Transistor M1 is biased with drain voltage of 0.98V with gate biased at -0.1V and provides a sufficient current to drive transistor M2. A novel design is proposed here where a unique technique is applied to the LNA. The proposed LNA consists of two stages, first is acting as a pull down amplifier as its drain is pull down using an LC cascade circuit which helps
improving noise figure as well as broadband matching. Therefore it can be called as a totem
pole technique circuit. The second stage is a power stage to improve broadband gain along
with power. The entire simulation is carried out using the ADS tool. The simulated results obtained are sufficient enough so that it can be used for different wireless applications.
Design and simulation of Microstrip coupled line band-pass filter is done at 2.40 GHz operating frequency, with 5th order Chebyshev 0.5 dB ripple and 200 MHz of bandwidth
using ADS simulation software. The simulation result carried out reveal that they are in complete agreement with the design specifications
The main types of distributed filters used today are combline, interdigital, parallelcoupled-
line bandpass and bandstop, and stepped-impedance filters. The filter designed using stepped-impedance is also known as Hi-Z or Low-Z filters. Low-pass filter is implemented by microstrip lines using sections of varying characteristics impedance lines.
The simulated results show that the cut-off frequency obtained is 3.04 GHz which is
slightly greater than 2.8 GHz. Also layout of Low Pass filter is obtained. The layout obtained shows the concept of high and low impedance Low Pass filter also known as stepped impedance techniques.
This project proposes the wideband LNA with analyses on the key performance factors required for UWB LNA design, such as noise performance, and linearity over a wide bandwidth. The LNA is designed by using 0.15μm GaAs pHEMT process. The first stage is optimized for noise matching and the resistive shunt-feedback stage provides wideband gain
and good stability. First stage transistor is driving second stage along with total current.
Transistor M1 is biased with drain voltage of 0.98V with gate biased at -0.1V and provides a sufficient current to drive transistor M2. A novel design is proposed here where a unique technique is applied to the LNA. The proposed LNA consists of two stages, first is acting as a pull down amplifier as its drain is pull down using an LC cascade circuit which helps
improving noise figure as well as broadband matching. Therefore it can be called as a totem
pole technique circuit. The second stage is a power stage to improve broadband gain along
with power. The entire simulation is carried out using the ADS tool. The simulated results obtained are sufficient enough so that it can be used for different wireless applications.
Design and simulation of Microstrip coupled line band-pass filter is done at 2.40 GHz operating frequency, with 5th order Chebyshev 0.5 dB ripple and 200 MHz of bandwidth
using ADS simulation software. The simulation result carried out reveal that they are in complete agreement with the design specifications
The main types of distributed filters used today are combline, interdigital, parallelcoupled-
line bandpass and bandstop, and stepped-impedance filters. The filter designed using stepped-impedance is also known as Hi-Z or Low-Z filters. Low-pass filter is implemented by microstrip lines using sections of varying characteristics impedance lines.
The simulated results show that the cut-off frequency obtained is 3.04 GHz which is
slightly greater than 2.8 GHz. Also layout of Low Pass filter is obtained. The layout obtained shows the concept of high and low impedance Low Pass filter also known as stepped impedance techniques.