General
Home / Examples / Magnetic Analysis (Gauss, Static Analysis/Harmonic analysis) / Example 17: Directivity of Magnetic Field (Near-Field Radiation)
The magnetic field generated by a loop coil is analyzed.
The vectors and the directivity of the magnetic field are solved.
Unless specified in the list below, the default conditions will be applied.
Results will vary depending on Femtet version and the PC environment.
Item |
Settings |
Analysis Space |
3D |
Model unit |
mm |
Item |
Settings |
Solver |
Magnetic Analysis [Gauss] |
Analysis Type |
Static Analysis |
Options |
N/A |
A solid body of loop coil is defined.
When you calculate the directivity, select open boundary as outer boundary condition.
Body Number/Type |
Body Attribute Name |
Material Name |
Mesh Size |
2/Solid |
Coil |
008_Cu * |
0.25 |
* Available from the material DB
Body Attribute Name |
Tab |
Settings |
Coil |
Current |
Waveform: Constant Current: 1 [A] Turns: 1 [Turns] Direction: Loop Coil/Magnetic Field Direction: Magnetic Field Vector: X=0, Y=0, Z=1 |
Open boundary is set for the outer boundary condition.
Boundary Condition Name/Topology |
Tab |
Boundary Condition Type |
Settings |
Outer Boundary Condition |
Electric |
Open Boundary |
|
The vectors of the magnetic field on XZ plane are shown below.
The directivity of the intensity of the magnetic field is shown below. (Theta: min 0.0 [deg], max 180 [deg], step 18 )
