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Noise Factor GaAs MESFET Formula

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Noise Factor is a measure of how much a device,, degrades the signal-to-noise ratio (SNR) of a signal as it passes through. Check FAQs

NF = 1 + 2 \cdot ω \cdot \frac{C gs}{G m} \cdot \sqrt{\frac{R s - R gate}{R i}}

NF - Noise Factor?ω - Angular frequency?C_gs - Gate Source Capacitance?G_m - Transconductance of the MESFET?R_s - Source Resistance?R_gate - Gate Resistance?R_i - Input Resistance?

Noise Factor GaAs MESFET Example

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Here is how the Noise Factor GaAs MESFET equation looks like with Values.

Here is how the Noise Factor GaAs MESFET equation looks like with Units.

Here is how the Noise Factor GaAs MESFET equation looks like.

1.0872 = 1 + 2 \cdot 53.25 \cdot \frac{56}{0.0631} \cdot \sqrt{\frac{5 - 1.6}{4}}

1.0872dB = 1 + 2 \cdot 53.25rad/s \cdot \frac{56μF}{0.0631S} \cdot \sqrt{\frac{5Ω - 1.6Ω}{4Ω}}

1.0872 = 1 + 2 \cdot 53.25 \cdot \frac{56}{0.0631} \cdot \sqrt{\frac{5 - 1.6}{4}}

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Noise Factor GaAs MESFET Solution

Follow our step by step solution on how to calculate Noise Factor GaAs MESFET?

FIRST Step Consider the formula

NF = 1 + 2 \cdot ω \cdot \frac{C gs}{G m} \cdot \sqrt{\frac{R s - R gate}{R i}}

Next Step Substitute values of Variables

∴

NF = 1 + 2 \cdot 53.25rad/s \cdot \frac{56μF}{0.0631S} \cdot \sqrt{\frac{5Ω - 1.6Ω}{4Ω}}

Next Step Convert Units

∴

NF = 1 + 2 \cdot 53.25rad/s \cdot \frac{5.6E-5F}{0.0631S} \cdot \sqrt{\frac{5Ω - 1.6Ω}{4Ω}}

Next Step Prepare to Evaluate

∴

NF = 1 + 2 \cdot 53.25 \cdot \frac{5.6E-5}{0.0631} \cdot \sqrt{\frac{5 - 1.6}{4}}

Next Step Evaluate

∴

NF = 1.08717872137128dB

LAST Step Rounding Answer

∴

NF = 1.0872dB

Noise Factor GaAs MESFET Formula Elements

Variables

Functions

Noise Factor

Noise Factor is a measure of how much a device,, degrades the signal-to-noise ratio (SNR) of a signal as it passes through.

Symbol: NF

Measurement: SoundUnit: dB

Note: Value should be greater than 0.

Formulas to find Noise Factor

Angular frequency

Angular frequency refers to the rate at which a sinusoidal waveform oscillates in the context of electrical circuits and signals.

Symbol: ω

Measurement: Angular FrequencyUnit: rad/s

Note: Value should be greater than 0.

Formulas to find Angular frequency

Gate Source Capacitance

Gate Source Capacitance refers to the capacitance between the gate and source terminals of a field-effect transistor (FET).

Symbol: C_gs

Measurement: CapacitanceUnit: μF

Note: Value should be greater than 0.

Formulas to find Gate Source Capacitance

Transconductance of the MESFET

Transconductance of the MESFET is a key parameter in MESFETs, representing the change in drain current with respect to the change in gate-source voltage.

Symbol: G_m

Measurement: Electric ConductanceUnit: S

Note: Value should be greater than 0.

Formulas to find Transconductance of the MESFET

Source Resistance

Source Resistance refers to the resistance associated with the source terminal of the transistor.

Symbol: R_s

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Source Resistance

Gate Resistance

Gate Resistance refers to the resistance associated with the gate terminal of a field-effect transistor (FET).

Symbol: R_gate

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Gate Resistance

Input Resistance

Input Resistance refers to the resistance presented to the input terminal of the device.

Symbol: R_i

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Input Resistance

sqrt

A square root function is a function that takes a non-negative number as an input and returns the square root of the given input number.

Syntax: sqrt(Number)

Other formulas in Transistor Amplifiers category

Go MESFET Cutoff Frequency

f co = \frac{G m}{2 \cdot π \cdot C gs}

Go Maximum Operating Frequency

f max = \frac{f co}{2} \cdot \sqrt{\frac{R d}{R s + R i + R g}}

How to Evaluate Noise Factor GaAs MESFET?

Noise Factor GaAs MESFET evaluator uses Noise Factor = 1+2*Angular frequency*Gate Source Capacitance/Transconductance of the MESFET*sqrt((Source Resistance-Gate Resistance)/Input Resistance) to evaluate the Noise Factor, The Noise factor GaAs MESFET formula is defined as a measure of how much the device contributes to the overall noise in a communication system. Noise Factor is denoted by NF symbol.

How to evaluate Noise Factor GaAs MESFET using this online evaluator? To use this online evaluator for Noise Factor GaAs MESFET, enter Angular frequency (ω), Gate Source Capacitance (C_gs), Transconductance of the MESFET (G_m), Source Resistance (R_s), Gate Resistance (R_gate) & Input Resistance (R_i) and hit the calculate button.

FAQs on Noise Factor GaAs MESFET

What is the formula to find Noise Factor GaAs MESFET?

The formula of Noise Factor GaAs MESFET is expressed as Noise Factor = 1+2*Angular frequency*Gate Source Capacitance/Transconductance of the MESFET*sqrt((Source Resistance-Gate Resistance)/Input Resistance). Here is an example- 1.086769 = 1+2*53.25*5.6E-05/0.063072*sqrt((5-1.6)/4).

How to calculate Noise Factor GaAs MESFET?

With Angular frequency (ω), Gate Source Capacitance (C_gs), Transconductance of the MESFET (G_m), Source Resistance (R_s), Gate Resistance (R_gate) & Input Resistance (R_i) we can find Noise Factor GaAs MESFET using the formula - Noise Factor = 1+2*Angular frequency*Gate Source Capacitance/Transconductance of the MESFET*sqrt((Source Resistance-Gate Resistance)/Input Resistance). This formula also uses Square Root (sqrt) function(s).

Can the Noise Factor GaAs MESFET be negative?

No, the Noise Factor GaAs MESFET, measured in Sound cannot be negative.

Which unit is used to measure Noise Factor GaAs MESFET?

Noise Factor GaAs MESFET is usually measured using the Decibel[dB] for Sound. Bel[dB], Neper[dB] are the few other units in which Noise Factor GaAs MESFET can be measured.

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Noise Factor GaAs MESFET Formula

Noise Factor GaAs MESFET Example

Noise Factor GaAs MESFET Solution

Noise Factor GaAs MESFET Formula Elements

Other formulas in Transistor Amplifiers category

How to Evaluate Noise Factor GaAs MESFET?

FAQs on Noise Factor GaAs MESFET

Variable Name