Average Power Density of Half-Wave Dipole Formula

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Average Power Density refers to the average amount of power per unit area that is present within a given region of space over a specified period of time. Check FAQs
[Pr]avg=0.609ηhwdIo24π2rhwd2sin((((Whwdt)-(πLhwd)rhwd))π180)2
[Pr]avg - Average Power Density?ηhwd - Intrinsic Impedance of Medium?Io - Amplitude of Oscillating Current?rhwd - Radial Distance from Antenna?Whwd - Angular Frequency of Half Wave Dipole?t - Time?Lhwd - Length of Antenna?π - Archimedes' constant?

Average Power Density of Half-Wave Dipole Example

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Here is how the Average Power Density of Half-Wave Dipole equation looks like with Values.

Here is how the Average Power Density of Half-Wave Dipole equation looks like with Units.

Here is how the Average Power Density of Half-Wave Dipole equation looks like.

73.2376Edit=0.609377Edit5Edit243.141620.5Edit2sin((((6.3E+7Edit0.001Edit)-(3.14162Edit)0.5Edit))3.1416180)2
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Average Power Density of Half-Wave Dipole Solution

Follow our step by step solution on how to calculate Average Power Density of Half-Wave Dipole?

FIRST Step Consider the formula
[Pr]avg=0.609ηhwdIo24π2rhwd2sin((((Whwdt)-(πLhwd)rhwd))π180)2
Next Step Substitute values of Variables
[Pr]avg=0.609377Ω5A24π20.5m2sin((((6.3E+7rad/s0.001s)-(π2m)0.5m))π180)2
Next Step Substitute values of Constants
[Pr]avg=0.609377Ω5A243.141620.5m2sin((((6.3E+7rad/s0.001s)-(3.14162m)0.5m))3.1416180)2
Next Step Prepare to Evaluate
[Pr]avg=0.6093775243.141620.52sin((((6.3E+70.001)-(3.14162)0.5))3.1416180)2
Next Step Evaluate
[Pr]avg=73.2376368918267W/m³
LAST Step Rounding Answer
[Pr]avg=73.2376W/m³

Average Power Density of Half-Wave Dipole Formula Elements

Variables
Constants
Functions
Average Power Density
Average Power Density refers to the average amount of power per unit area that is present within a given region of space over a specified period of time.
Symbol: [Pr]avg
Measurement: Power DensityUnit: W/m³
Note: Value should be greater than 0.
Intrinsic Impedance of Medium
The Intrinsic Impedance of Medium refers to the characteristic impedance of a material through which electromagnetic waves propagate.
Symbol: ηhwd
Measurement: Electric ResistanceUnit: Ω
Note: Value should be greater than 0.
Amplitude of Oscillating Current
The Amplitude of Oscillating Current refers to the maximum magnitude or strength of the alternating electric current as it varies over time.
Symbol: Io
Measurement: Electric CurrentUnit: A
Note: Value should be greater than 0.
Radial Distance from Antenna
The Radial Distance from Antenna refers to the distance measured radially outward from the center of the antenna structure.
Symbol: rhwd
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Angular Frequency of Half Wave Dipole
The Angular Frequency of Half Wave Dipole refers to the rate at which the dipole oscillates back and forth in an electromagnetic field.
Symbol: Whwd
Measurement: Angular FrequencyUnit: rad/s
Note: Value should be greater than 0.
Time
Time is a dimension in which events occur in succession, allowing for the measurement of durations between those events.
Symbol: t
Measurement: TimeUnit: s
Note: Value should be greater than 0.
Length of Antenna
The Length of Antenna refers to the physical size of the conductive element that make up the antenna structure.
Symbol: Lhwd
Measurement: LengthUnit: m
Note: Value should be greater than 0.
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
sin
Sine is a trigonometric function that describes the ratio of the length of the opposite side of a right triangle to the length of the hypotenuse.
Syntax: sin(Angle)

Other formulas in Electromagnetic Radiation and Antennas category

​Go Radiation Resistance of Antenna
Rrad=2Prio2
​Go Average Power
Pr=12io2Rrad

How to Evaluate Average Power Density of Half-Wave Dipole?

Average Power Density of Half-Wave Dipole evaluator uses Average Power Density = (0.609*Intrinsic Impedance of Medium*Amplitude of Oscillating Current^2)/(4*pi^2*Radial Distance from Antenna^2)*sin((((Angular Frequency of Half Wave Dipole*Time)-(pi/Length of Antenna)*Radial Distance from Antenna))*pi/180)^2 to evaluate the Average Power Density, Average Power Density of Half-Wave Dipole is the radiated power per unit area, averaged over a spherical surface, typically calculated at a distance much greater than the wavelength. Average Power Density is denoted by [Pr]avg symbol.

How to evaluate Average Power Density of Half-Wave Dipole using this online evaluator? To use this online evaluator for Average Power Density of Half-Wave Dipole, enter Intrinsic Impedance of Medium hwd), Amplitude of Oscillating Current (Io), Radial Distance from Antenna (rhwd), Angular Frequency of Half Wave Dipole (Whwd), Time (t) & Length of Antenna (Lhwd) and hit the calculate button.

FAQs on Average Power Density of Half-Wave Dipole

What is the formula to find Average Power Density of Half-Wave Dipole?
The formula of Average Power Density of Half-Wave Dipole is expressed as Average Power Density = (0.609*Intrinsic Impedance of Medium*Amplitude of Oscillating Current^2)/(4*pi^2*Radial Distance from Antenna^2)*sin((((Angular Frequency of Half Wave Dipole*Time)-(pi/Length of Antenna)*Radial Distance from Antenna))*pi/180)^2. Here is an example- 73.23764 = (0.609*377*5^2)/(4*pi^2*0.5^2)*sin((((62800000*0.001)-(pi/2)*0.5))*pi/180)^2.
How to calculate Average Power Density of Half-Wave Dipole?
With Intrinsic Impedance of Medium hwd), Amplitude of Oscillating Current (Io), Radial Distance from Antenna (rhwd), Angular Frequency of Half Wave Dipole (Whwd), Time (t) & Length of Antenna (Lhwd) we can find Average Power Density of Half-Wave Dipole using the formula - Average Power Density = (0.609*Intrinsic Impedance of Medium*Amplitude of Oscillating Current^2)/(4*pi^2*Radial Distance from Antenna^2)*sin((((Angular Frequency of Half Wave Dipole*Time)-(pi/Length of Antenna)*Radial Distance from Antenna))*pi/180)^2. This formula also uses Archimedes' constant and Sine (sin) function(s).
Can the Average Power Density of Half-Wave Dipole be negative?
No, the Average Power Density of Half-Wave Dipole, measured in Power Density cannot be negative.
Which unit is used to measure Average Power Density of Half-Wave Dipole?
Average Power Density of Half-Wave Dipole is usually measured using the Watt Per Cubic Meter[W/m³] for Power Density. Horsepower Per Litre[W/m³], Decawatt Per Cubic Meter[W/m³], Gigawatt Per Cubic Meter[W/m³] are the few other units in which Average Power Density of Half-Wave Dipole can be measured.
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