Ohmic Resistance Calculator

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Antenna Theory Parameters

Special Antennas

Wave Propagation

✖Total Antenna Resistance is defined as the electrical resistance of an antenna is composed of its ohmic resistance plus its radiation resistance.ⓘ Total Antenna Resistance [R_t]			+10% -10%
✖Radiation resistance is an effective resistance, due to the power carried away from the antenna as radio waves.ⓘ Radiation Resistance [R_rad]			+10% -10%

✖Ohmic resistance is the material's opposition to the flow of electric current.ⓘ Ohmic Resistance [R_ohm]

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Formula

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Ohmic Resistance

Formula

`"R"_{"ohm"} = "R"_{"t"}-"R"_{"rad"}`

Example

`"2.5Ω"="4.75Ω"-"2.25Ω"`

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Ohmic Resistance Solution

STEP 0: Pre-Calculation Summary

Formula Used

Ohmic Resistance = Total Antenna Resistance-Radiation Resistance
R_ohm = R_t-R_rad
This formula uses 3 Variables

Variables Used

Ohmic Resistance - (Measured in Ohm) - Ohmic resistance is the material's opposition to the flow of electric current.
Total Antenna Resistance - (Measured in Ohm) - Total Antenna Resistance is defined as the electrical resistance of an antenna is composed of its ohmic resistance plus its radiation resistance.
Radiation Resistance - (Measured in Ohm) - Radiation resistance is an effective resistance, due to the power carried away from the antenna as radio waves.

STEP 1: Convert Input(s) to Base Unit

Total Antenna Resistance: 4.75 Ohm --> 4.75 Ohm No Conversion Required
Radiation Resistance: 2.25 Ohm --> 2.25 Ohm No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

R_ohm = R_t-R_rad --> 4.75-2.25

Evaluating ... ...

R_ohm = 2.5

STEP 3: Convert Result to Output's Unit

2.5 Ohm --> No Conversion Required

FINAL ANSWER

2.5 Ohm <-- Ohmic Resistance

(Calculation completed in 00.004 seconds)

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Created by Shobhit Dimri

Bipin Tripathi Kumaon Institute of Technology (BTKIT), Dwarahat

Shobhit Dimri has created this Calculator and 900+ more calculators!

Verified by Payal Priya

Birsa Institute of Technology (BIT), Sindri

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< 24 Antenna Theory Parameters Calculators

Distance between Transmitting and Receiving Point

Go Transmitter Receiver Distance = (Antenna Current*120*pi*Height of Transmitter*Height of Receiver)/(Strength of Ground Wave Propagation*Wavelength)

Height of Transmitting Antenna

Go Height of Transmitter = (Strength of Ground Wave Propagation*Wavelength*Transmitter Receiver Distance)/(120*pi*Antenna Current*Height of Receiver)

Height of Receiving Antenna

Go Height of Receiver = (Strength of Ground Wave Propagation*Wavelength*Transmitter Receiver Distance)/(120*pi*Height of Transmitter*Antenna Current)

Strength of Ground Wave

Go Strength of Ground Wave Propagation = (120*pi*Height of Transmitter*Height of Receiver*Antenna Current)/(Wavelength*Transmitter Receiver Distance)

Antenna Current

Go Antenna Current = (Strength of Ground Wave Propagation*Wavelength*Transmitter Receiver Distance)/(120*pi*Height of Transmitter*Height of Receiver)

Friis Formula

Go Power at Receiving Antenna = Transmitting Power*Gain of Receiving Antenna*Gain of Transmitting Antenna*Wavelength^2/(4*3.14*Transmitter Receiver Distance)^2

Power Density of Antenna

Go Power Density of Antenna = (Total Input Power*Antenna Gain)/(4*pi*Transmitter Receiver Distance)

Effective Area of Antenna

Go Effective Area Antenna = (Thermal Resistance*Incremental Temperature)/Power Density of Antenna

Noise Temperature of Antenna

Go Antenna Temperature = (Power Density of Antenna)/(Thermal Resistance*Bandwidth)

Total Power of Antenna

Go Total Power of Antenna = Thermal Resistance*Antenna Temperature*Bandwidth

Radiation Intensity

Go Radiation Intensity = Isotropic Radiation Intensity*Directivity of Antenna

Average Radiation Intensity

Go Average Radiation Intensity = Radiation Intensity/Directivity of Antenna

Directivity of Antenna

Go Directivity of Antenna = Radiation Intensity/Average Radiation Intensity

Power Per Unit Bandwidth

Go Power per Unit = Thermal Resistance*Resistor Absolute Temperature

Total Antenna Resistance

Go Total Antenna Resistance = Ohmic Resistance+Radiation Resistance

Radiation Resistance

Go Radiation Resistance = Total Antenna Resistance-Ohmic Resistance

Ohmic Resistance

Go Ohmic Resistance = Total Antenna Resistance-Radiation Resistance

Antenna Gain

Go Antenna Gain = Radiation Intensity/Isotropic Radiation Intensity

Length of Binomial Array

Go Length of Binomial Array = (No of Element-1)*Wavelength/2

Isotropic Radiation Intensity

Go Isotropic Radiation Intensity = Radiated Power/(4*pi)

Antenna Efficiency

Go Antenna Efficiency = Radiated Power/Total Input Power

Total Input Power

Go Total Input Power = Radiated Power/Antenna Efficiency

Duct Height

Go Duct Height = (Maximum Duct Wavelength/0.014)^(2/3)

Maximum Duct Wavelength

Go Maximum Duct Wavelength = 0.014*Duct Height^(3/2)

Ohmic Resistance Formula

Ohmic Resistance = Total Antenna Resistance-Radiation Resistance
R_ohm = R_t-R_rad

What is Antenna Resistance?

The power supplied to an entire antenna divided by the square of the effective antenna current measured at the point where power is supplied to the antenna.

How to Calculate Ohmic Resistance?

Ohmic Resistance calculator uses Ohmic Resistance = Total Antenna Resistance-Radiation Resistance to calculate the Ohmic Resistance, The Ohmic Resistance formula is defined as a material's opposition to the flow of electric current; measured in ohms. electric resistance, electrical resistance, impedance, resistivity, resistance. Ohmic Resistance is denoted by R_ohm symbol.

How to calculate Ohmic Resistance using this online calculator? To use this online calculator for Ohmic Resistance, enter Total Antenna Resistance (R_t) & Radiation Resistance (R_rad) and hit the calculate button. Here is how the Ohmic Resistance calculation can be explained with given input values -> 2.5 = 4.75-2.25.

FAQ

What is Ohmic Resistance?

The Ohmic Resistance formula is defined as a material's opposition to the flow of electric current; measured in ohms. electric resistance, electrical resistance, impedance, resistivity, resistance and is represented as R_ohm = R_t-R_rad or Ohmic Resistance = Total Antenna Resistance-Radiation Resistance. Total Antenna Resistance is defined as the electrical resistance of an antenna is composed of its ohmic resistance plus its radiation resistance & Radiation resistance is an effective resistance, due to the power carried away from the antenna as radio waves.

How to calculate Ohmic Resistance?

The Ohmic Resistance formula is defined as a material's opposition to the flow of electric current; measured in ohms. electric resistance, electrical resistance, impedance, resistivity, resistance is calculated using Ohmic Resistance = Total Antenna Resistance-Radiation Resistance. To calculate Ohmic Resistance, you need Total Antenna Resistance (R_t) & Radiation Resistance (R_rad). With our tool, you need to enter the respective value for Total Antenna Resistance & Radiation 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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