feedCurrent
Calculate current at feed for antenna or array
Description
Examples
Feed Current of Monopole Antenna Excited By Plane Wave
Excite a monopole antenna using plane wave. Calculate the feed current at 75 MHz.
h = planeWaveExcitation(Element=monopole, Direction=[1 0 0])
h = planeWaveExcitation with properties: Element: [1x1 monopole] Direction: [1 0 0] Polarization: [0 0 1] SolverType: 'MoM'
cur = feedCurrent(h,75e6)
cur = -0.0135 + 0.0135i
Feed Current of Rounded-Bowtie Antenna
Calculate the feed current of a rounded-bowtie designed for operation at 2.4 GHz.
b = design(bowtieRounded,2.4e9); If = feedCurrent(b,2.4e9)
If = 0.0298 + 0.0010i
Feed Current of Dipole Antenna
Calculate the feed current of a dipole antenna designed for operation at 70 MHz and 75 MHz.
feedCurrent(dipole, [75e6, 70e6])
ans = 1×2 complex
0.0137 + 0.0000i 0.0089 - 0.0036i
Input Arguments
obj
— Antenna or array
antenna object | array object | custom antenna object | custom array object | pcbStack
object | installedAntenna
object | planeWaveExcitation
object
Antenna or array to calculate the current at its feed, specified as either of these objects:
antenna catalog element
array catalog element
Note
feedCurrent
function does not calculate feed
current for the infiniteArray
object.
Example: planeWaveExcitation
frequency
— Frequency to calculate feed current
scalar in Hz | vector in Hz
Frequency or frequency range over which to calculate the feed current, specified as a scalar or vector in Hz.
Example: 70e6
Data Types: double
Output Argument
i
— Complex current
1-by-n vector in A
Complex current, returned as a 1-by-n vector in A. This value is calculated at the feed point of an antenna or array.
Example: 0.0182 - 0.0032i
Data Types: double
Complex Number Support: Yes
Version History
Introduced in R2017a
See Also
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