Aksonx2

Sorry!!! Password: 1progs

CST STUDIO SUITE 2025.01 SP1 https://cloud.mail.ru/public/VzVL/UGgXdTaou

Thank you very much when I wrote to you, I also checked this parameter and the program actually showed the same value of the material = 2.4. I'll try to make a new calculation at 950 MHz instead of 915 MHz. If necessary, I will write about the results. Now there is an opportunity to work with a 3d printing designer. I'm exporting the antenna model to him in "step" format file. The designer adds plastic models to his program and sends them to me. It turns out to be a ready-made model, taking into account all the details. This opens up interesting possibilities in the program. It might be possible to make something similar to a Fresnel lens

Thank you very much, everything worked out. Can you tell me the characteristics of PET-G plastic for calculating simulation in the program? I understand that the Epsilon , Mu parameter is necessary, and some other important parameters must be specified. A search in Goggle gave an approximate parameter Epsilon = 3.1 for PET-G plastic at temperatures up to 180 degrees Celsius. Moxon designed an antenna in a plastic frame made of PET-G, the antenna turned out to be with a VSWR down by 50 MHz from the calculated one according to the program.

Good time. I found an antenna model where two cylinders are connected by a separate element . A smooth curve is obtained. I can't find how to do this in the program. How can this be done?

No I want to optimize and analyze CST for ...I don't know what to call this antenna, "Double helical dipole". Portable radios often use these antennas for the 145/433 MHz band. But I can't find a calculator or a mathematical or practical justification for calculating such an antenna anywhere. The monopole can be found. But I can't find a double helical dipole. And by the way, indeed, then you can simulate a director antenna with such a vibrator, a very interesting question. The attachment contains a diagram of the manufacture of such an antenna for walkie-talkies

Good time. I'm ashamed to admit that I have a low level of knowledge in 3D modeling. Please help me how to make a model of a "helical dipole" antenna at a frequency of 433MHz.

Good afternoon. Please tell me about optimization. What is the correct algorithm? set all the parameters at once (impedance, SWR, etc.) Or can you first optimize the antenna by SWR and then by antenna impedance? Are there any manuals?

P.S. Don't forget to click "Apply" !!! Simulation - Setup Solver - Acceleration - check Hardware acceleration - OK - Apply !!!!! - close or start

I am using an Nvidia GTX1070 home video card. Officially, such video cards are not supported in the CST program. I did not conduct an experiment with Radeon video cards and it seems that they do not all support solvers. 1. The NVIDIA GPUs that fulfill the following requirements may be enabled for simulations: • capable of running CUDA 9.2 code • at least 4 GB of free memory To enable such GPUs, set the environment variable CST_HWACC_ALLOW_UNVERIFIED_HARDWARE = 1. Then all eligible installed and visible NVIDIA GPUs will be considered for computation. 2. Verifying Correct Installation of GPU Hardware and Drivers As a final test to verify that the GPU hardware has been correctly installed, the following test can be executed: Log in to the machine and execute the HWAccDiagnostics_AMD64 program found in the AMD64 subfolder of your CST installation (Windows) or in the folder LinuxAMD64 on a Linux system. The macro "Check GPU Computing Setup" in the Solver macros performs exactly this check.The output of the tool should look similar to the following picture if the installation was successful. -- (image CUDA2.JPG) 3. GPU Computing needs to be enabled via the acceleration dialog box before running a simulation. To turn on GPU Computing: 1. Open the dialog of the solver. 2. Click on the "Acceleration" button. 3. Switch on "Hardware acceleration" and specify how many GPU devices should be used for this simulation. The specification of the number of devices is per solver (e.g. if DC is used) -- (Image CST CUDA.jpg) - Step 3 should be done in each project separately. it must be done for each project separately - If you did everything correctly, then when you start the simulation, a message will appear in the "messages" section that the video card has been identified and the on-demand standby status (LAZY). During the calculation, you can see the processor load of the video card through the task manager. -- (Image CUDA3.JPG) - Details on using video adapters in the CST program are in the "GPU_Computing_Guid" file in the attachment. I am using version 2024 SP5 GPU_Computing_Guide_2021.pdf

A miracle of Chinese industry. I built a home computer for HFSS. Dual-core motherboard. Two Xeon E5-2680v4 processors, 32 gigabytes of RAM. The GTX 1070 graphics card. I prescribed the points as in the instructions so that the program determines other video cards for calculation using CUDA. Everything works super well. It counts much faster than I had before with 4 threads

Thanks !!! now there is a question of upgrading the computer. An error came out that there is not enough RAM (8 GB installed). If anyone has experience, tell me what configuration - processor and video card to buy so that it works well. Not Nvidia Tesla :))). I tried it on a friend's laptop with windows . It turned out to run CUDA . Thank you. maybe there is some kind of CUDA performance program?

Have a good time, everyone. Please tell me what parameters should be entered when calculating the antenna to calculate the antenna if . Is it mounted on a carbon fiber base? Does carbon have characteristics similar to metal for calculations in the program?

how would I do: - plan of the area (park, stadium, sports ground, monuments) - according to the plan, where it is allowed to install access points (permission from the city administration or building owners, installation on lighting poles or making new supports for access points) - weather conditions (climate, sun, humidity. Installation outdoors or indoors) Even protection from birds (bird shit). This seems funny, but I had to make protection from crows on the GPS antenna. The bird loved to sit on the antenna and the signal was of poor quality. I taped toothpicks onto duct tape to stab the crow's ass. - Based on such data, you will already have a plan for where you can install access points and where you can’t. - decide how many people you plan to simultaneously connect to access points. Will there be a limit on access speed? And they will. Or which billing to deploy. Otherwise, your entire network will be destroyed by those who like to use torrents for free. - If this is a stadium, then there are definitely corporate-class access points. A simple SOHO access point will not be able to serve more than 10 people. - Do you need seamless roaming between access points (for example, a park, a client walking or riding a bike) This will give you the hardware requirements. From the site plan you will understand where access points can be placed and where not. And approximately the coverage of the WIFI network. - and here we need antennas or not. May be better to place access points in a star topology P.S By the way, the issue of electricity supply is also important - laying electrical power cables will be prohibited and something will have to be invented

First you need to decide what channel speed you need. How many clients do you plan to serve at the same time? And then think about antennas.