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1000 Threads found on edaboard.com: Periodic Boundary Cst
How can we use INTEST,EXTEST and BYPASS modes without wrapper in DFT for design having IP to improve test coverage for ATPG. Is it affects any other things?
how can I calculate the returnloss theoritically depending on the simulation results
I am designing a traditional 1st order delta sigma modulator. I tried to find the input referred noise of the integrator and switching network (circuit is shown). I set vin+ = vin- =vcm & then I set v to be a square wave at a frequency fclk/2 (to emulate the limit cycle behavior of first-order delta sigma for code 0). This is my periodic steady sta
There is four fed patch for circular pol (see Attachments) simulated in cst. When 1 port is excited the S31 is about -4dB, S21=S41=-13dB, S11=-15dB. It means that total efficiency of antenna is less than 60%, because ~40% of power return to the port 3. When all ports simultaneous excitation are performed the efficiency more than 95%. Why efficienc
Although cst is not for such a simple thing but I am interested to find the Fresnel transmission and reflection coefficients using cst to see that the results are matching with the textbook equation for non-dispersive materials. I have taken a dielectric material of epsilon=4 and Miu=1 placed along z direction. open boundary is considered on (...)
Although cst is not for such a simple thing but I am interested to find the Fresnel transmission and reflection coefficients using cst to see that the results are matching with the textbook equation for non-dispersive materials. I have taken a dielectric material of epsilon=4 and Miu=1 placed along z direction. open boundary is considered in (...)
Hello, Is it possible to have two sets of PBC offsetted as shown in the attached? I ran it and gave no error, the question is if it is correct. Thank you
Hello everyone. I have questions analyzing the diagram in the cst software. The 3 blue line we have the directivity, ok? In the circumference of red color we have the shape of the magnetic field (its formation), ok? Does the green circle represent the gain (S11)? 157327
I have a patch antenna, I need to take the whole design(patch and ground together) and export it to ADS, the problem is I couldn't able to take the patch and ground together but one by one meaning first the patch and then ground. Is there way to do to take as a whole? I watched a video on youtube, even the tutorial took the waveguide together with
Hi all, I am fairly new to HFSS, and unlike python or MATLAB, the resources are few. I am trying to create a linear array such that I can simulate the beam pattern, get the array factor and also see the effect on the beampattern with and without mutual coupling. I havetrie the unit cell array method but I keep getting error when setting up the r
I have a lot of difficulty understanding certain functions and understandings of cst, I know frequency, reflection coefficient S11 and transmission loss But the image below shows what I doubt. If anyone has material that talks about each point it comes to each function. 157915
Hi I make a transceiver in ADS the channel in between is line of sight. I want to change the Chanel into human body. first I can export the signal from the ADS transmitter and input to human body in cst? Is there any co -simulation between ADS and cst. Can i export the signal from ADS design and input it to cst design "the human model" (...)
High Impedance Surface ? Please who could help in guiding me with the cst software tool to plot a dispersion diagram for quare patches on high impedance surfaces
Please who has a Guide on simulating Hihg impedance surfaces on square patches with the use of cst.
I draw "conical helix antenna on a dielectric sheet" in AutoCAD. I labelled the layers of the helix as layer 1 and cone as layer 2. And then import the drawing from AutoCAD to Solidworks. The file converted into 3D, and I saved it. Finally, I import the into cst. The helix disappeared, and only the cone appeared. Why it's missing? how to ge
I am attempting to recreate and reproduce the work of a researcher, in HFSS, on a dual and quad output switch, and would like some insights into how to implement the boundary conditions and excitations respectively. I have an attached an image of the device. The distances between the central beam and input and output ports have been designed such t
I am attempting to recreate and reproduce the work of a researcher, in HFSS, on a dual and quad output switch, and would like some insights into how to implement the boundary conditions and excitations respectively. I have an attached an image of the device. The distances between the central beam and input and output ports have been designed such t
i know that it is not possible to draw meander line helix in cst. how shall i draw parameterized meanderline helix to be imported to cst for simulation and optimization? Please refer to the attachment for the example of meander line helix.
As part of a bigger project I am using a grounded CPW for a SIW in HFSS. I simply want to start with just making sure the CPW part works first before proceeding with the rest of the project so using a calculator I got the dimensions needed for a 50Ω characteristic impedance and proceeded to create my de
Hello, I am trying to reproduce result from one of the published paper. However, no way I get the apparently meaningful result. Can anyone please suggest me what I have done wrong in the design, i.e. port define, boundary, Every dimension has been taken accurately as per the attached paper. So structure is as accurate as possible. I have uploaded