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Cut-off Frequency of Varactor Diode Formula

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A Cut-off Frequency is a boundary in a system's frequency response at which energy flowing through the system begins to be reduced rather than passing through. Check FAQs

f c = \frac{1}{2 \cdot π \cdot R se \cdot C j}

f_c - Cut-off Frequency?R_se - Series Field Resistance?C_j - Capacitance of Varactor Diode?π - Archimedes' constant?

Cut-off Frequency of Varactor Diode Example

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Here is how the Cut-off Frequency of Varactor Diode equation looks like with Values.

Here is how the Cut-off Frequency of Varactor Diode equation looks like with Units.

Here is how the Cut-off Frequency of Varactor Diode equation looks like.

3.0756 = \frac{1}{2 \cdot 3.1416 \cdot 34 \cdot 1522}

3.0756Hz = \frac{1}{2 \cdot 3.1416 \cdot 34Ω \cdot 1522μF}

3.0756 = \frac{1}{2 \cdot 3.1416 \cdot 34 \cdot 1522}

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Cut-off Frequency of Varactor Diode Solution

Follow our step by step solution on how to calculate Cut-off Frequency of Varactor Diode?

FIRST Step Consider the formula

f c = \frac{1}{2 \cdot π \cdot R se \cdot C j}

Next Step Substitute values of Variables

∴

f c = \frac{1}{2 \cdot π \cdot 34Ω \cdot 1522μF}

Next Step Substitute values of Constants

∴

f c = \frac{1}{2 \cdot 3.1416 \cdot 34Ω \cdot 1522μF}

Next Step Convert Units

∴

f c = \frac{1}{2 \cdot 3.1416 \cdot 34Ω \cdot 0.0015F}

Next Step Prepare to Evaluate

∴

f c = \frac{1}{2 \cdot 3.1416 \cdot 34 \cdot 0.0015}

Next Step Evaluate

∴

f c = 3.0755767003922Hz

LAST Step Rounding Answer

∴

f c = 3.0756Hz

Cut-off Frequency of Varactor Diode Formula Elements

Variables

Constants

Cut-off Frequency

A Cut-off Frequency is a boundary in a system's frequency response at which energy flowing through the system begins to be reduced rather than passing through.

Symbol: f_c

Measurement: FrequencyUnit: Hz

Note: Value should be greater than 0.

Formulas to find Cut-off Frequency

Series Field Resistance

Series Field Resistance refers to the opposition offered to the flow of current by the field winding around the circuit that is connected in series with the varactor diode.

Symbol: R_se

Measurement: Electric ResistanceUnit: Ω

Note: Value should be greater than 0.

Formulas to find Series Field Resistance

Capacitance of Varactor Diode

The Capacitance of Varactor Diode is the ability of a component or circuit to collect and store energy in the form of an electrical charge.

Symbol: C_j

Measurement: CapacitanceUnit: μF

Note: Value should be greater than 0.

Formulas to find Capacitance of Varactor Diode

Archimedes' constant

Archimedes' constant is a mathematical constant that represents the ratio of the circumference of a circle to its diameter.

Symbol: π

Value: 3.14159265358979323846264338327950288

Other formulas in Diode Characteristics category

Go Voltage Equivalent of Temperature

V temp = \frac{T room}{11600}

Go Responsivity

R = \frac{I p}{P o}

Go Zener Current

I z = \frac{V i - V z}{R z}

Go Zener Voltage

V z = R z \cdot I z

How to Evaluate Cut-off Frequency of Varactor Diode?

Cut-off Frequency of Varactor Diode evaluator uses Cut-off Frequency = 1/(2*pi*Series Field Resistance*Capacitance of Varactor Diode) to evaluate the Cut-off Frequency, The Cut-off frequency of varactor diode is a boundary in a system's frequency response at which energy flowing through the system begins to be reduced rather than passing through. Cut-off Frequency is denoted by f_c symbol.

How to evaluate Cut-off Frequency of Varactor Diode using this online evaluator? To use this online evaluator for Cut-off Frequency of Varactor Diode, enter Series Field Resistance (R_se) & Capacitance of Varactor Diode (C_j) and hit the calculate button.

FAQs on Cut-off Frequency of Varactor Diode

What is the formula to find Cut-off Frequency of Varactor Diode?

The formula of Cut-off Frequency of Varactor Diode is expressed as Cut-off Frequency = 1/(2*pi*Series Field Resistance*Capacitance of Varactor Diode). Here is an example- 3.075577 = 1/(2*pi*34*0.001522).

How to calculate Cut-off Frequency of Varactor Diode?

With Series Field Resistance (R_se) & Capacitance of Varactor Diode (C_j) we can find Cut-off Frequency of Varactor Diode using the formula - Cut-off Frequency = 1/(2*pi*Series Field Resistance*Capacitance of Varactor Diode). This formula also uses Archimedes' constant .

Can the Cut-off Frequency of Varactor Diode be negative?

No, the Cut-off Frequency of Varactor Diode, measured in Frequency cannot be negative.

Which unit is used to measure Cut-off Frequency of Varactor Diode?

Cut-off Frequency of Varactor Diode is usually measured using the Hertz[Hz] for Frequency. Petahertz[Hz], Terahertz[Hz], Gigahertz[Hz] are the few other units in which Cut-off Frequency of Varactor Diode can be measured.

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Cut-off Frequency of Varactor Diode Formula

Cut-off Frequency of Varactor Diode Example

Cut-off Frequency of Varactor Diode Solution

Cut-off Frequency of Varactor Diode Formula Elements

Other formulas in Diode Characteristics category

How to Evaluate Cut-off Frequency of Varactor Diode?

FAQs on Cut-off Frequency of Varactor Diode

Variable Name