MESFET Cutoff Frequency Calculator

✖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.ⓘ Transconductance of the MESFET [G_m]			+10% -10%
✖Gate Source Capacitance refers to the capacitance between the gate and source terminals of a field-effect transistor (FET).ⓘ Gate Source Capacitance [C_gs]			+10% -10%

✖MESFET Cutoff Frequency represents the frequency at which the transistor's current gain (or transconductance) begins to decrease significantly.ⓘ MESFET Cutoff Frequency [f_co]

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Formula

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MESFET Cutoff Frequency

Formula

`"f"_{"co"} = "G"_{"m"}/(2*pi*"C"_{"gs"})`

Example

`"179.2539Hz"="0.063072S"/(2*pi*"56μF")`

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MESFET Cutoff Frequency Solution

STEP 0: Pre-Calculation Summary

Formula Used

MESFET Cutoff Frequency = Transconductance of the MESFET/(2*pi*Gate Source Capacitance)
f_co = G_m/(2*pi*C_gs)
This formula uses 1 Constants, 3 Variables

Constants Used

pi - Archimedes' constant Value Taken As 3.14159265358979323846264338327950288

Variables Used

MESFET Cutoff Frequency - (Measured in Hertz) - MESFET Cutoff Frequency represents the frequency at which the transistor's current gain (or transconductance) begins to decrease significantly.
Transconductance of the MESFET - (Measured in Siemens) - 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.
Gate Source Capacitance - (Measured in Farad) - Gate Source Capacitance refers to the capacitance between the gate and source terminals of a field-effect transistor (FET).

STEP 1: Convert Input(s) to Base Unit

Transconductance of the MESFET: 0.063072 Siemens --> 0.063072 Siemens No Conversion Required
Gate Source Capacitance: 56 Microfarad --> 5.6E-05 Farad (Check conversion here)

STEP 2: Evaluate Formula

Substituting Input Values in Formula

f_co = G_m/(2*pi*C_gs) --> 0.063072/(2*pi*5.6E-05)

Evaluating ... ...

f_co = 179.253938762358

STEP 3: Convert Result to Output's Unit

179.253938762358 Hertz --> No Conversion Required

FINAL ANSWER

179.253938762358 ≈ 179.2539 Hertz <-- MESFET Cutoff Frequency

(Calculation completed in 00.004 seconds)

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Created by banuprakash

Dayananda Sagar College of Engineering (DSCE), Bangalore

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Power gain of down converter given Degradation Factor

Go Power gain of down converter = Signal Frequency/Output Frequency*(Signal Frequency/Output Frequency*(Figure of Merit)^2)/(1+sqrt(1+(Signal Frequency/Output Frequency*(Figure of Merit)^2)))^2

Gain Degradation Factor for MESFET

Go Gain Degradation Factor = Output Frequency/Signal Frequency*(Signal Frequency/Output Frequency*(Figure of Merit)^2)/(1+sqrt(1+(Signal Frequency/Output Frequency*(Figure of Merit)^2)))^2

Noise Factor GaAs MESFET

Go Noise Factor = 1+2*Angular frequency*Gate Source Capacitance/Transconductance of the MESFET*sqrt((Source Resistance-Gate Resistance)/Input Resistance)

Maximum Operating Frequency

Go Maximum Operating Frequency = MESFET Cutoff Frequency/2*sqrt(Drain Resistance/(Source Resistance+Input Resistance+Gate Metallization Resistance))

Maximum Allowable Power

Go Maximum Allowable Power = 1/(Reactance*Transit Time Cutoff Frequency^2)*(Maximum Electric Field*Maximum Saturation Drift Velocity/(2*pi))^2

Transconductance in Saturation Region in MESFET

Go Transconductance of the MESFET = Output Conductance*(1-sqrt((Input Voltage-Threshold Voltage)/Pinch-off Voltage))

Maximum Power Gain of Microwave Transistor

Go Maximum Power Gain of a Microwave Transistor = (Transit Time Cutoff Frequency/Power Gain Frequency)^2*Output Impedance/Input Impedence

MESFET Cutoff Frequency

Go MESFET Cutoff Frequency = Transconductance of the MESFET/(2*pi*Gate Source Capacitance)

Maximum Frequency of Oscillation

Go Maximum Frequency of Oscillation = Saturation Velocity/(2*pi*Channel Length)

Transit Angle

Go Transit Angle = Angular frequency*Length of Drift Space/Carrier Drift Velocity

MESFET Cutoff Frequency Formula

MESFET Cutoff Frequency = Transconductance of the MESFET/(2*pi*Gate Source Capacitance)
f_co = G_m/(2*pi*C_gs)

What does a higher MESFET cutoff frequency imply?

A higher MESFET cutoff frequency indicates better high-frequency performance. It suggests that the transistor can switch states and amplify signals at higher frequencies, making it suitable for applications in radio frequency (RF) and microwave circuits.

How to Calculate MESFET Cutoff Frequency?

MESFET Cutoff Frequency calculator uses MESFET Cutoff Frequency = Transconductance of the MESFET/(2*pi*Gate Source Capacitance) to calculate the MESFET Cutoff Frequency, The MESFET Cutoff Frequency formula is defined as the frequency at which the transistor's current gain (or transconductance) begins to decrease significantly. MESFET Cutoff Frequency is denoted by f_co symbol.

How to calculate MESFET Cutoff Frequency using this online calculator? To use this online calculator for MESFET Cutoff Frequency, enter Transconductance of the MESFET (G_m) & Gate Source Capacitance (C_gs) and hit the calculate button. Here is how the MESFET Cutoff Frequency calculation can be explained with given input values -> 179.2539 = 0.063072/(2*pi*5.6E-05).

FAQ

What is MESFET Cutoff Frequency?

The MESFET Cutoff Frequency formula is defined as the frequency at which the transistor's current gain (or transconductance) begins to decrease significantly and is represented as f_co = G_m/(2*pi*C_gs) or MESFET Cutoff Frequency = Transconductance of the MESFET/(2*pi*Gate Source Capacitance). 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 & Gate Source Capacitance refers to the capacitance between the gate and source terminals of a field-effect transistor (FET).

How to calculate MESFET Cutoff Frequency?

The MESFET Cutoff Frequency formula is defined as the frequency at which the transistor's current gain (or transconductance) begins to decrease significantly is calculated using MESFET Cutoff Frequency = Transconductance of the MESFET/(2*pi*Gate Source Capacitance). To calculate MESFET Cutoff Frequency, you need Transconductance of the MESFET (G_m) & Gate Source Capacitance (C_gs). With our tool, you need to enter the respective value for Transconductance of the MESFET & Gate Source Capacitance 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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