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HFSS15: Field Quantities
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The default field quantities that can be plotted, their definitions, and associated units are as follows (see the following note for issues in HFSS-IE for plotting magnetic and electric current):
Field Quantity | Definition | Units |
Mag E | The magnitude of the electric field, |E|(x,y,z,t). | V/m |
Mag H | The magnitude of the magnetic field, |H|(x,y,z,t). | Amps/m |
Mag Jvol | The magnitude of the current density, |J|(x,y,z,t), over the volume. | Amps/m2 |
Mag Jsurf | The magnitude of the current density, |J|(x,y,z,t), on the surface. | Amps/m |
Complex Mag E | The complex magnitude of the electric field, |E|(x,y,z). | V/m |
Complex Mag H | The complex magnitude of the magnetic field, |H|(x,y,z). | Amps/m |
Complex Mag Jvol | The complex magnitude of the current density, |J|(x,y,z), over the volume. | Amps/m2 |
Complex Mag Jsurf | The complex magnitude of the current density, |J|(x,y,z), on the surface. | Amps/m |
Vector E | The electric field, E(x,y,z,t). | V/m |
Vector H | The magnetic field, H(x,y,z,t). | Amps/m |
Vector Jvol | The current density, J(x,y,z), over the volume. | Amps/m2 |
Vector Jsurf | The current density, J(x,y,z), on the surface. | Amps/m |
Vector Real Poynting | The Poynting vector, defined as E x H*. | W/m2 |
Local SAR | The specific absorption rate. | W/kg |
Average SAR | The average specific absorption rate. | W/kg |
Certification SAR | The IEEE specific absorption rate certification number. | W/kg |
Note | Plotting Magnetic current in HFSS-IE is relatively simple. It is M = Exn on an interface between two non-conducting materials. This is an equivalent current. Plotting Electric current in HFSS-IE involves three cases: 1. J = nxH on a surface of solid conductor (H is zero inside the conductor). This is a TRUE physical current. 2. J = nx(H1-H2) on a conducting sheet which is inside a region/background (or it is not an interface between two regions). This is a TRUE physical current. 3. J = nxH1 on a conducting boundary between two regions (it doesn’t matter if the two regions have the same material). H1 is the field on the positive side of the surface. However, if region 2 is the background, we will display J = nxH2. This is an equivalent current. |
