How do you select solution frequency in HFSS?

in solution setup of HFSS depends on frequency sweep types such as fast, interpolating, and discrete type. When sweep frequency range is 3 GHz to 10 GHz (UWB), solution frequency should be 6.5 GHz for fast sweep (center frequency), 10 GHz for interpolating (higher frequency).

What is Hfss solution type?

HFSS – Solution Types. Solution Types. Driven Modal – calculates the modal-based S-parameters. The S-matrix solutions will be expressed in terms of the incident and reflected powers of waveguide modes.

What are the three solution types available in HFSS?

in hfss, sweep type is three options are discrete, fast and interpolating.

How do you add a frequency sweep in HFSS?

You need to add a frequency sweep to your Solution Setup. Go to the Project Manager area, right click the Solution Setup you want to make analyze several frequencies and select Add Frequency Sweep… The next time you run the Solution Setup, all frequencies will be investigated.

How do you set frequency in HFSS?

One need to enter a solution frequency in the setup to simulate any structure in HFSS….You can open your project in HFSS software then do the steps below:

1. In the hfss bar menu, click on HFSS , you will have a list.
2. Click on Analysis setup .
3. Then click on Add solution setup…

How do I create a solution setup in HFSS?

Adding a Solution Setup to an HFSS-IE Design

1. Select a design in the project tree.
2. Click HFSS-IE>Analysis Setup>Add Solution Setup .
3. Click the General tab.
4. Enter a Setup Name or accept the default.
5. Enter the Solution Frequency and select the frequency units from the pull down list.

How is wave port defined in HFSS?

Wave port represents the surface through which a signal enters or exits the geometry. Hence 2 ports are required to be defined. HFSS assumes that each wave port you define is connected to a semi-infinitely long waveguide that has the same cross-section and material properties as the port.

What is driven terminal in HFSS?

Driven Terminal: calculates the terminal-based S-parameters of multi-conductor transmission line ports. The S-matrix solutions will be expressed in terms of terminal voltages and currents.

What is sweep in HFSS?

1, HFSS has three types of sweeps; discrete, fast, and interpolating. Depending on your frequency bandwidth and processing power (i.e. how long you are willing to wait for simulation completion), the most appropriate sweep can be chosen.

What is mesh in HFSS?

The automatic adaptive meshing procedure at a single frequency is the cornerstone technology that enables Ansys HFSS to accurately and efficiently calculate the electric fields in a model. The process starts with Ansys HFSS translating the modeled geometry into a conformal, inhomogeneous tetrahedral mesh.

How is HFSS bandwidth calculated?

Using Results > Rectangular plots plot the return loss (s11) in dB against frequency. -10dB line should cut your curve at at least 2 points. The difference between the frequencies of those two points gives the bandwidth of your antenna.

What is integration line in HFSS?

The integration line is used to extract the impedance for a given waveguide cross section. There are three methods to extract the impedance in HFSS: Zpi, Zpv, Zvi. The Zpi (default) uses the initial power, 1Watt, and the enclosed current, I, to determine the impedance.

How does HFSS solve a problem like this?

Either way, you rarely simulate at a single frequency, so HFSS solves this type of problem in 2 stages: 1) Stage 1: Iterative meshing. The user chooses a “solution frequency” and HFSS iteratively solves the scattering parameters (S-params) at that frequency, increases the density of the finite element mesh, re-solves S-params, etc..

How does HFSS decide when you have enough mesh elements?

HFSS decides that you have enough mesh elements when it adds more mesh elements (for one or two iterations) and ALL of the S-parameters change less than some “delta S” value (which you choose). At this point, you have a stable solution at one frequency— your solution frequency (or “mesh frequency”).

What are the stages of the HFSS process?

1) Stage 1: Iterative meshing. The user chooses a “solution frequency” and HFSS iteratively solves the scattering parameters (S-params) at that frequency, increases the density of the finite element mesh, re-solves S-params, etc.. It continues this cycle until the S-parameters stabilize and stop changing.

Why does HFSS ask for an interpolating sweep?

If your frequency sweep setup asked HFSS to solve at discrete frequencies, HFSS will solve your problem at those specific frequencies and it’s done. More often, you ask for an “interpolating sweep”, because you want an S-parameter file with, say, N=500, 1000, or 2000 frequency points in your freq sweep range, Fmin to Fmax.

https://www.youtube.com/watch?v=SJecRpZYoEQ