Overall Noise Figure of Cascaded Networks Calculator

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Radar Antennas Reception

Radar & Antenna Specifications

Special Purpose Radars

✖Noise Figure Network 1 quantifies how much the device degrades the signal-to-noise ratio (SNR) of the input signal as it passes through the device.ⓘ Noise Figure Network 1 [F₁]			+10% -10%
✖Noise Figure Network 2 quantifies how much the device degrades the signal-to-noise ratio (SNR) of the input signal as it passes through the device.ⓘ Noise Figure Network 2 [F₂]			+10% -10%
✖Gain of Network 1 is the measure of how much system amplifies or strengthens the signal during the transmission and reception.ⓘ Gain of Network 1 [G₁]			+10% -10%

✖Overall Noise Figure quantifies how much the device degrades the signal-to-noise ratio (SNR) of the input signal as it passes through the system.ⓘ Overall Noise Figure of Cascaded Networks [F_o]

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Formula

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Overall Noise Figure of Cascaded Networks

Formula

`"F"_{"o"} = "F"_{"1"}+("F"_{"2"}-1)/"G"_{"1"}`

Example

`"1.169155dB"="1.11dB"+("1.21dB"-1)/"3.55"`

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Overall Noise Figure of Cascaded Networks Solution

STEP 0: Pre-Calculation Summary

Formula Used

Overall Noise Figure = Noise Figure Network 1+(Noise Figure Network 2-1)/Gain of Network 1
F_o = F₁+(F₂-1)/G₁
This formula uses 4 Variables

Variables Used

Overall Noise Figure - (Measured in Decibel) - Overall Noise Figure quantifies how much the device degrades the signal-to-noise ratio (SNR) of the input signal as it passes through the system.
Noise Figure Network 1 - (Measured in Decibel) - Noise Figure Network 1 quantifies how much the device degrades the signal-to-noise ratio (SNR) of the input signal as it passes through the device.
Noise Figure Network 2 - (Measured in Decibel) - Noise Figure Network 2 quantifies how much the device degrades the signal-to-noise ratio (SNR) of the input signal as it passes through the device.
Gain of Network 1 - Gain of Network 1 is the measure of how much system amplifies or strengthens the signal during the transmission and reception.

STEP 1: Convert Input(s) to Base Unit

Noise Figure Network 1: 1.11 Decibel --> 1.11 Decibel No Conversion Required
Noise Figure Network 2: 1.21 Decibel --> 1.21 Decibel No Conversion Required
Gain of Network 1: 3.55 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

F_o = F₁+(F₂-1)/G₁ --> 1.11+(1.21-1)/3.55

Evaluating ... ...

F_o = 1.16915492957746

STEP 3: Convert Result to Output's Unit

1.16915492957746 Decibel --> No Conversion Required

FINAL ANSWER

1.16915492957746 ≈ 1.169155 Decibel <-- Overall Noise Figure

(Calculation completed in 00.004 seconds)

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Credits

Created by Santhosh Yadav

Dayananda Sagar College Of Engineering (DSCE), Banglore

Santhosh Yadav has created this Calculator and 50+ more calculators!

Verified by Ritwik Tripathi

Vellore Institute of Technology (VIT Vellore), Vellore

Ritwik Tripathi has verified this Calculator and 100+ more calculators!

< 14 Radar Antennas Reception Calculators

Omnidirectional SIR

Go Omnidirectional SIR = 1/(2*(Frequency Reuse Ratio-1)^(-Propagation Path Loss Exponent)+2*(Frequency Reuse Ratio)^(-Propagation Path Loss Exponent)+2*(Frequency Reuse Ratio+1)^(-Propagation Path Loss Exponent))

Dielectric Constant of Artificial Dielectric

Go Dielectric Constant of Artificial Dielectric = 1+(4*pi*Radius of Metallic Spheres^3)/(Spacing between Centers of Metallic Sphere^3)

Maximum Gain of Antenna given Antenna Diameter

Go Maximum Gain of Antenna = (Antenna Aperture Efficiency/43)*(Antenna Diameter/Dielectric Constant of Artificial Dielectric)^2

Metal-Plate Lens Refractive Index

Go Metal Plate Refractive Index = sqrt(1-(Incident Wave Wavelength/(2*Spacing between Centers of Metallic Sphere))^2)

Spacing between Centers of Metallic Sphere

Go Spacing between Centers of Metallic Sphere = Incident Wave Wavelength/(2*sqrt(1-Metal Plate Refractive Index^2))

Overall Noise Figure of Cascaded Networks

Go Overall Noise Figure = Noise Figure Network 1+(Noise Figure Network 2-1)/Gain of Network 1

Receiver Antenna Gain

Go Receiver Antenna Gain = (4*pi*Effective Area of Receiving Antenna)/Carrier Wavelength^2

Luneburg Lens Refractive Index

Go Luneburg Lens Refractive Index = sqrt(2-(Radial Distance/Radius of Luneburg Lens)^2)

Likelihood Ratio Receiver

Go Likelihood Ratio Receiver = Probability Density Function of Signal and Noise/Probability Density Function of Noise

Frequency Reuse Ratio

Go Frequency Reuse Ratio = (6*Signal to Co-channel Interference Ratio)^(1/Propagation Path Loss Exponent)

Directive Gain

Go Directive Gain = (4*pi)/(Beam Width in X-plane*Beam Width in Y-plane)

Signal to Co-channel Interference Ratio

Go Signal to Co-channel Interference Ratio = (1/6)*Frequency Reuse Ratio^Propagation Path Loss Exponent

Effective Aperture of Lossless Antenna

Go Effective Aperture of Lossless Antenna = Antenna Aperture Efficiency*Physical Area of an Antenna

Effective Noise Temperature

Go Effective Noise Temperature = (Overall Noise Figure-1)*Noise Temperature Network 1

Overall Noise Figure of Cascaded Networks Formula

Overall Noise Figure = Noise Figure Network 1+(Noise Figure Network 2-1)/Gain of Network 1
F_o = F₁+(F₂-1)/G₁

How does Noise Figure of Cascaded Networks affect Noise Performance?

In practical terms, a lower noise figure indicates a better noise performance. A system with a lower noise figure will add less noise to the signal, preserving a higher SNR, which is important in applications where signal quality is crucial, such as in radio communication or data transmission.

How to Calculate Overall Noise Figure of Cascaded Networks?

Overall Noise Figure of Cascaded Networks calculator uses Overall Noise Figure = Noise Figure Network 1+(Noise Figure Network 2-1)/Gain of Network 1 to calculate the Overall Noise Figure, Overall Noise Figure of Cascaded Networks is a measure of the noise performance of an electronic or RF (radio frequency) system, such as an amplifier, receiver, or any device that processes signals. It quantifies how much the device degrades the signal-to-noise ratio (SNR) of the input signal as it passes through the cascaded netwroks. Overall Noise Figure is denoted by F_o symbol.

How to calculate Overall Noise Figure of Cascaded Networks using this online calculator? To use this online calculator for Overall Noise Figure of Cascaded Networks, enter Noise Figure Network 1 (F₁), Noise Figure Network 2 (F₂) & Gain of Network 1 (G₁) and hit the calculate button. Here is how the Overall Noise Figure of Cascaded Networks calculation can be explained with given input values -> 1.169155 = 1.11+(1.21-1)/3.55.

FAQ

What is Overall Noise Figure of Cascaded Networks?

Overall Noise Figure of Cascaded Networks is a measure of the noise performance of an electronic or RF (radio frequency) system, such as an amplifier, receiver, or any device that processes signals. It quantifies how much the device degrades the signal-to-noise ratio (SNR) of the input signal as it passes through the cascaded netwroks and is represented as F_o = F₁+(F₂-1)/G₁ or Overall Noise Figure = Noise Figure Network 1+(Noise Figure Network 2-1)/Gain of Network 1. Noise Figure Network 1 quantifies how much the device degrades the signal-to-noise ratio (SNR) of the input signal as it passes through the device, Noise Figure Network 2 quantifies how much the device degrades the signal-to-noise ratio (SNR) of the input signal as it passes through the device & Gain of Network 1 is the measure of how much system amplifies or strengthens the signal during the transmission and reception.

How to calculate Overall Noise Figure of Cascaded Networks?

Overall Noise Figure of Cascaded Networks is a measure of the noise performance of an electronic or RF (radio frequency) system, such as an amplifier, receiver, or any device that processes signals. It quantifies how much the device degrades the signal-to-noise ratio (SNR) of the input signal as it passes through the cascaded netwroks is calculated using Overall Noise Figure = Noise Figure Network 1+(Noise Figure Network 2-1)/Gain of Network 1. To calculate Overall Noise Figure of Cascaded Networks, you need Noise Figure Network 1 (F₁), Noise Figure Network 2 (F₂) & Gain of Network 1 (G₁). With our tool, you need to enter the respective value for Noise Figure Network 1, Noise Figure Network 2 & Gain of Network 1 and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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