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Source Resistance MESFET Calculator

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✖Drain resistance is the ratio of change in drain to source voltage to corresponding change in drain current for a constant gate to source voltage.ⓘ Drain Resistance [Rd]
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✖Cut-off frequency MESFET is defined as corner frequency is a boundary in system's frequency response at which energy flowing through system begins to be reduced rather than passing through.ⓘ Cut-off Frequency MESFET [fco]
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✖Maximum frequency of oscillations is defined as the practical upper bound for useful circuit operation with MESFET.ⓘ Maximum Frequency of Oscillations [fm]
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✖Gate metallization resistance is defined as the resistance of metallization of a FET gate stripe that has effect of placing a non-linear resistance in series with the gate junction.ⓘ Gate Metallization Resistance [Rg]
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✖Input resistance MESFET is defined as the total internal resistance as experienced by MESFET.ⓘ Input Resistance [Ri]
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✖Source Resistance a purely resistive device can be experimentally determined by increasingly loading the device.ⓘ Source Resistance MESFET [Rs]
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Formula
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Source Resistance MESFET

Formula
`"R"_{"s"} = (("R"_{"d"}*"f"_{"co"}^2)/(4*"f"_{"m"}^2))-("R"_{"g"}+"R"_{"i"}) `

Example
`"5.744445Ω"=(("450Ω"*("30.05Hz")^2)/(4*("65Hz")^2))-("2.8Ω"+"15.5Ω") `

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Source Resistance MESFET Solution

STEP 0: Pre-Calculation Summary
Formula Used
Source Resistance = ((Drain Resistance*Cut-off Frequency MESFET^2)/(4*Maximum Frequency of Oscillations^2))-(Gate Metallization Resistance+Input Resistance)
Rs = ((Rd*fco^2)/(4*fm^2))-(Rg+Ri)
This formula uses 6 Variables
Variables Used
Source Resistance - (Measured in Ohm) - Source Resistance a purely resistive device can be experimentally determined by increasingly loading the device.
Drain Resistance - (Measured in Ohm) - Drain resistance is the ratio of change in drain to source voltage to corresponding change in drain current for a constant gate to source voltage.
Cut-off Frequency MESFET - (Measured in Hertz) - Cut-off frequency MESFET is defined as corner frequency is a boundary in system's frequency response at which energy flowing through system begins to be reduced rather than passing through.
Maximum Frequency of Oscillations - (Measured in Hertz) - Maximum frequency of oscillations is defined as the practical upper bound for useful circuit operation with MESFET.
Gate Metallization Resistance - (Measured in Ohm) - Gate metallization resistance is defined as the resistance of metallization of a FET gate stripe that has effect of placing a non-linear resistance in series with the gate junction.
Input Resistance - (Measured in Ohm) - Input resistance MESFET is defined as the total internal resistance as experienced by MESFET.
STEP 1: Convert Input(s) to Base Unit
Drain Resistance: 450 Ohm --> 450 Ohm No Conversion Required
Cut-off Frequency MESFET: 30.05 Hertz --> 30.05 Hertz No Conversion Required
Maximum Frequency of Oscillations: 65 Hertz --> 65 Hertz No Conversion Required
Gate Metallization Resistance: 2.8 Ohm --> 2.8 Ohm No Conversion Required
Input Resistance: 15.5 Ohm --> 15.5 Ohm No Conversion Required
STEP 2: Evaluate Formula
Substituting Input Values in Formula
Rs = ((Rd*fco^2)/(4*fm^2))-(Rg+Ri) --> ((450*30.05^2)/(4*65^2))-(2.8+15.5)
Evaluating ... ...
Rs = 5.74444526627219
STEP 3: Convert Result to Output's Unit
5.74444526627219 Ohm --> No Conversion Required
FINAL ANSWER
5.74444526627219 ≈ 5.744445 Ohm <-- Source Resistance
(Calculation completed in 00.007 seconds)
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Created by Shobhit Dimri
Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat
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13 MESFET Calculators

Cut Off Frequency MESFET using Maximum Frequency
Go Cut-off Frequency MESFET = (2*Maximum Frequency of Oscillations)/(sqrt(Drain Resistance/(Source Resistance+Gate Metallization Resistance+Input Resistance)))
Gate Metallization Resistance MESFET
Go Gate Metallization Resistance = ((Drain Resistance*Cut-off Frequency MESFET^2)/(4*Maximum Frequency of Oscillations^2))-(Source Resistance+Input Resistance)
Source Resistance MESFET
Go Source Resistance = ((Drain Resistance*Cut-off Frequency MESFET^2)/(4*Maximum Frequency of Oscillations^2))-(Gate Metallization Resistance+Input Resistance)
Input Resistance MESFET
Go Input Resistance = ((Drain Resistance*Cut-off Frequency MESFET^2)/(4*Maximum Frequency of Oscillations))-(Gate Metallization Resistance+Source Resistance)
Drain Resistance MESFET
Go Drain Resistance = ((4*Maximum Frequency of Oscillations^2)/Cut-off Frequency MESFET^2)*(Source Resistance+Gate Metallization Resistance+Input Resistance)
Transconductance in Saturation
Go Transconductance = Output Conductance*(1-sqrt((Schottky Diode Potential Barrier-Gate Voltage)/Pinch Off Voltage))
Maximum Frequency of Oscillations MESFET
Go Maximum Frequency of Oscillations = (Gain Unity Frequency/2)*sqrt(Drain Resistance/Gate Metallization Resistance)
Maximum Frequency of Oscillation given Transconductance
Go Maximum Frequency of Oscillations = Transconductance/(pi*Gate Source Capacitance)
Cut Off Frequency MESFET given Transconductance and Capacitance
Go Cut-off Frequency MESFET = Transconductance/(2*pi*Gate Source Capacitance)
Gate Source Capacitance MESFET
Go Gate Source Capacitance = Transconductance/(2*pi*Cut-off Frequency MESFET)
Cut-off frequency MESFET
Go Cut-off Frequency MESFET = Saturated Drift Velocity/(4*pi*Gate Length)
Transconductance MESFET
Go Transconductance = 2*Gate Source Capacitance*pi*Cut-off Frequency MESFET
Gate Length of MSFET
Go Gate Length = Saturated Drift Velocity/(4*pi*Cut-off Frequency MESFET)

Source Resistance MESFET Formula

Source Resistance = ((Drain Resistance*Cut-off Frequency MESFET^2)/(4*Maximum Frequency of Oscillations^2))-(Gate Metallization Resistance+Input Resistance)
Rs = ((Rd*fco^2)/(4*fm^2))-(Rg+Ri)

What is MESFET?

A MESFET (metal–semiconductor field-effect transistor) is a field-effect transistor semiconductor device similar to a JFET with a Schottky (metal–semiconductor) junction instead of a p–n junction for a gate.

How to Calculate Source Resistance MESFET?

Source Resistance MESFET calculator uses Source Resistance = ((Drain Resistance*Cut-off Frequency MESFET^2)/(4*Maximum Frequency of Oscillations^2))-(Gate Metallization Resistance+Input Resistance) to calculate the Source Resistance, The Source Resistance MESFET formula is defined as a purely resistive device can be experimentally determined by increasingly loading the device. Source Resistance is denoted by Rs symbol.

How to calculate Source Resistance MESFET using this online calculator? To use this online calculator for Source Resistance MESFET, enter Drain Resistance (Rd), Cut-off Frequency MESFET (fco), Maximum Frequency of Oscillations (fm), Gate Metallization Resistance (Rg) & Input Resistance (Ri) and hit the calculate button. Here is how the Source Resistance MESFET calculation can be explained with given input values -> 5.744445 = ((450*30.05^2)/(4*65^2))-(2.8+15.5) .

FAQ

What is Source Resistance MESFET?
The Source Resistance MESFET formula is defined as a purely resistive device can be experimentally determined by increasingly loading the device and is represented as Rs = ((Rd*fco^2)/(4*fm^2))-(Rg+Ri) or Source Resistance = ((Drain Resistance*Cut-off Frequency MESFET^2)/(4*Maximum Frequency of Oscillations^2))-(Gate Metallization Resistance+Input Resistance) . Drain resistance is the ratio of change in drain to source voltage to corresponding change in drain current for a constant gate to source voltage, Cut-off frequency MESFET is defined as corner frequency is a boundary in system's frequency response at which energy flowing through system begins to be reduced rather than passing through, Maximum frequency of oscillations is defined as the practical upper bound for useful circuit operation with MESFET, Gate metallization resistance is defined as the resistance of metallization of a FET gate stripe that has effect of placing a non-linear resistance in series with the gate junction & Input resistance MESFET is defined as the total internal resistance as experienced by MESFET.
How to calculate Source Resistance MESFET?
The Source Resistance MESFET formula is defined as a purely resistive device can be experimentally determined by increasingly loading the device is calculated using Source Resistance = ((Drain Resistance*Cut-off Frequency MESFET^2)/(4*Maximum Frequency of Oscillations^2))-(Gate Metallization Resistance+Input Resistance) . To calculate Source Resistance MESFET, you need Drain Resistance (Rd), Cut-off Frequency MESFET (fco), Maximum Frequency of Oscillations (fm), Gate Metallization Resistance (Rg) & Input Resistance (Ri). With our tool, you need to enter the respective value for Drain Resistance, Cut-off Frequency MESFET, Maximum Frequency of Oscillations, Gate Metallization Resistance & Input Resistance 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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