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HFSS Field Calculator: Integration over Lines/Volume - Resulting Units?
I have two situations:
1) I am trying to calculate the "Total SAR" inside a solid sphere with known mass. I am first integrating Local SAR [W/kg] over the sphere: Scl : Integrate(Volume(Sphere_1), LocalSAR)
2) I am...
I'm simulating a conductive ink trace on a dielectric substrate. The microstrip is long and it's thickness is smaller than the skin depth.
IE: Length = 500mm, Width = 0.5mm, Thickness = 10um; Skin Depth = 100um, f = 150MHz
I know typically when simulating conductors that are larger than the...
I'm designing a system that is in two parts: the power supply and the actual device. The power supply is connected to the device with a 15ft cable. The power supply contains separate transformers, rectifiers, and filter caps for 4 DC voltages. These 4 unregulated DC voltages are connected via a...
In your project tree in the left column, right click "Radiation", then "Insert Far Field Setup", then "Infinite Sphere", default options should work fine.
Repeat for Near Field Setup with line or sphere...
push excitations
I am wondering if someone could explain the values that Ansoft Designer Generates to Push Excitations into HFSS, in particular the strange values Designer is calculating for me...
In the simplest example, say you have a structure with 1 lumped port in HFSS. You solve it at a...
wilkinson divider resistive
so you would say its safe to assume the parasitic capacitance is less then 1pF? Because I think the resistance would roll off if it was greater then that...(see matlab code). I didn't know if there was a specific type of resistor that was better suited to low...
wilkinson divider without resistor
I'm designing a 50ohm Wilkinson Power Divider... I know that I'm trying to find a resistor that will have the lowest parasitic capacitance in parallel w/ the resistance, so what type of capacitor would be best? Metal Film? Max Frequency ~100-300MHz
thanks
solve inside set
All objects in HFSS have a check box for whether or not to "Solve Inside". It is usually set by default except for object of high conductivity.
For example when adding "Solve Inside" to a copper microstrip trace, a warning is issued "Solving inside a solid with high...
I would like to link simulation data from HFSS into Designer and then back into HFSS.
I have already completed the first two steps...
I have a completed HFSS simulation where I solve for S-Parameters of a structure with many lumped ports (~20) while only 1 is a real port, 19 will eventually be...
HFSS says it's "Solved Magnitude" is 1 Watt of Power...
But is it driven by a unit current or voltage (1 Amp or 1 Volt) and scaled afterwords to 1W of power?
And if so, is it the current or the voltage driven by zero phase?
I'd like to do a 2D cross section simulation of some non-standard transmission lines,
basically your standard strip and ground plane w/ dielectric microstrip, and then a funky experimental design to compare it to.
I'd like to compare the characteristic impedance vs frequency in each case.
I...
export matrix to file matlab
Are you following these steps properly: (done on HFSS v10.1)
Right Click "Results" and Select "Solution Data"
Click on "Matrix Data" Tab
Click on "Export Matrix Data.." Button
Save it as an M-File
This has always worked fine for me, you may want to try...
I've encountered many errors when using HFSS but this one is a new one to me...
" Adaptive solution setup, process abc3d : subprocess "wave" encountered error in second point addition. "
I am also in the middle of a parametric solve setup and I can't go back to have it try again, it just...
There are 3 sweep methods, Discrete, Fast, and Interpolating.
Discrete will always give you the most accurate results. It also takes the most time. I usually always use Discrete Sweeps.
The HFSS Help menu talks about the different types.
For most of my applications the time needed for a...
air box hfss
In all my HFSS simulations I always start with a cubic air box.
Set Box Parameters:
Position - (-x_box/2,-y_box/2,-z_box/2)
X = x_box
Y = y_box
Z = z_box
Make all dimensions of the box equal to your wavelength
If you haven't built up your model to be iso-centered on the...
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