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1000 Threads found on Cst Pattern
Hi, I would like to import a pattern diagram in cst and to generate a array antenna with it. Is it possible? Thank you in advance
In my opinion, the Negative step (step 2) is really not necessary. If the solids you draw are all PEC, just import them into cst, set the background material to be free space, set the objects imported to be PEC. Then cst is "smart" enough to know that the fields needs to be solved are in your "Negative" region. Similar thing happens when using HFSS
Hy, i need some help with finding the phase pattern of an antenna simulated by cst. 2. does the phase of the pattern change rapidly throw the phase of the antenna ? thanks in advance
hi all,how i plot many polar pattern at different frequencies at cst 5,also how i extract co and cross polarization regards
hi all,i so weird that cst not support point sources as we could simulate large arrays(100*100),could cst have that? also how can i make wave guide with cos^4 pattern in cst?,in other word could i control the feed of waveguide if i use waveguide antenna and waveguide port? i listen to u regards
i want to share information i got today from my friends it is manual how to get co and cross polar using cst
Dear all How can I see antenna pattern and antenna structure simultaneously in cst(Microwave Studio)?
Is it possible to export farfield pattern of cst/HFSS and import in some visualize in some other specialized tool.
Hi all! I'm designing a small circular loop antenna (single turn) in cst MWS.I'm just very confused about the radiation pattern i'm getting. I've been reading in textbooks that the radiation pattern of the loop antenna is like a dipole and must be in the plane of the antenna, i.e. the direction of the max radiation is NOT through the loop. (...)
how to get the co-polarization and cross-polalization pattern after post procession using cst
Hi guys, I am trying to model an array system and considering the active element pattern approch to include the mutual coupling effect. For this I tried two different approches. 1) I ran a small array simulation with all ports setting and then determined the Z matrix using the cst. I took a stand alone element pattern and multiply it (...)
Hi All, I am simulating Reflectarray antenna in cst MWS with boundary conditions and using a waveguide port for excitation. The S parameter results are according to requirements. I am having trouble to generate radiation pattern for normalized gain. Please help an example, the design file is attached. Regards
Hello, How can i simulate the near field radiation pattern of an antenna in cst? I had try to search through the available field monitors that allow us to define, but seem like no near field monitor is provided. Thank you.
i dnt know how to design switches in cst
Hi all, how to plot radiation pattern in single polar plot from cst MWS txt files these are data fron the radiation pattern obtained in cst MWS HERE in one phi=0 and in other phi =90 while theta is varying reply soon regards kartik
HI all URGENT// I want to plot /NORMALISED RADIATION pattern IN cst AND HFSS
To desigh the patch antenna You can use 2.5D simulator (MWO, Sonnet), or cst-MWS if Your structure has many layers. To Yagi-Uda ... usually the formulas from Balanis book gives the good result, but if You want to simulate it, try to use SuperNEC or cst-MWS. With responce, Kit-the-great
Hi, Can anyone give me tutorial/manual file of Microwave Studio of cst?
Hi Eirp, 1.5G? It must be quite a big structure! 8O What were your mesh settings? I noticed that cst uses a lot more mesh cells if you haven´t got a planar structure (such as a curved body of an aircraft) I had to use staircase mesh for the imported sheet body. Till now, I still haven´t got the hang of disabling automatic mesh
The green line in far field plots in cst is the backlobe level of the radiation pattern you can see it in a polar pattern of horn or planar array there is low backlobe but if you have two sidelobs obviously they are marked with the green line
Maybe you can use FEKO or cst. You can solve large problem by them.
You should consult the cst MWS documentation on "Vertical and Horizontal Polarization". It is explained well in that section. -svarun
Hi all, I am building an antenna array based on microstrip p@tch antenna. I am now looking at a 2element array. Before I design a power divider, I want to simulate the array using two waveports. To study the overall pattern, I want to excite both ports simultaneously. Is it possible to do in cst MWS ? Thanks for your time. -Arun
Hi, is there anyone that knows how to get the antenna efficiency in cst? is it in the 1D result? but I cannot find it..... thanks in advance.
Hey, I've got a problem when using a discrete port in cst Microwave Studio 5.1.2. It's a pretty basic thing, I think. I want to do a transient analyses for a simple monopole structure. So I choose a discrete port between the monopole and the PEC surface. In the manual they state that such a discrete S-port has to be small enough, at least 1/1
Hello: usually the gound on lower side of the substrate is of thickness .03-.05mm. But if in the tutorial of cst "rectangular patcha antena", ground is about 3mm. It seem that thickness of ground plane has no effect on the result or i am missing somthing. Another quesiton: What should be the length of coaxial feed in cst
I have tried to simulate in cst but S11 is totally different see the cst design attachment. 50ohm coaxial cable is used to feed on other side of ground plane. Parameters Disk radius:12.5mm with patch thickness of .4mm FGap:.4~.7mm Ground plane:100x100mm
Hi, Any idea of the meaning of left polarization and right polarization in the far field results in cst? They are almost the same for different antenna structures.
hi, i'm new in designing antenna, i work on project to design a patch antenna for GPS, and using cst Microwave studio, i just want to know how to calculate the axial ratio. and want to know how to get radiation pattern for farfield or know the zeros and max. of radiation because after i run simulation for far field i didn't understand the graphs i
Hi fishyxl I think the hfss is more accurate in calculation S parameters in waveguide structure . When I simulation an antenna , I can get accurate pattern in HFSS and cst-MWO ,but in calculating S parameters ,HFSS is better than cst . Regards! caocao
that's because the simulation boundary is to close to the dipole with respect to the wavelength. it is better to use the open + add space boundary when simulating antennas in free space. cst will set a proper simulation boundary for you best regards
Hello someone can help me for this problem? How can one post the option of the Farfields (radiation pattern; gain and directivity) of antenna in cst? Thanks
cst calculates the gain as the total received power so it includes both Ex^2 + Ey^2. if you need the gain of horizontal polarization then select Phi pattern, and vertical select theta pattern (or vice versa according to your antenna orientation) if they are in dBi, you are right, you should add 3dB to calculate the power received by a CP (...)
Hi KhangKhang Some how u have to manage around 50ohm while changing the width, height etc. In my option as far as cst is concern, to normalize to 50ohm would be technically sound but not good enough. As an example if u normalize to 50ohm and if u manage to get port around 50ohm will give you different results.
hi all I have a design of an UWB amplifier and a patch antenna connected : i want measure the radiation field in cst can you give me a step by step guide to implement this ?
Dear all, Could anyone has experience using cst explain me , how to make magnetic and electric wall in such a case. I make single patch and want to investigate infinite sequence array by using mirror concept. Put E wall in front of it and behind it, and H wall on the right side and left side. But in cst we cant make parallel symetric plane
hi before starting simulation in cst MWS we define different monitors for our desired quatities. for example if we are interested in radiation pattern at 1.8ghz we define far field monitor at 1.8ghz and after simulation we can see the desired ratiation pattern my question is it possible to extract the 3D radiation (...)
hi all,i have little question of cst how can i polt the field of any antenna at any position(not near field nor far field) i make horn and put probe in my desired postion ,so how can i measure field I(i.e. how could i rotate the probe to measure the field pattern ) i wait so fastly ur reply
Far-field in cst: 3-D plot gives you the contour in three dimensions (by default, the maximum field/power is shown in red). For better understanding, you can include the structure along with the far-field (just right click on the 3-D pattern, plot properties -> show structure). you can also see the polar plot by cutting the plane along theta or
hi, i've design a circular patch microstrip antenna with narrow slot for 2.4GHz circularly polarization..the antenna that i design is right hand circular polarization and using coaxial feeding.. the Q is how do i know that my design is the correct one by using cst? what i need to determine is the radiation pattern, the s11 parameter < -10dB, the b
hi all,could cst simulate large array of isotropic elements regards
Dear all While Simulating 3 antennae by cst which have three separated ports cst every time excites 1 port while the other ports are terminated. But to see the overall radiation pattern due to all antennae we need all ports be excited simultaneously. what can I do other than using a power divider?
Hi ... I have designed a simple bow-tie antenna on cst... Altough i have the result of the S11... I am interested on antenna Gain vs Frequency and phase response vs frequency. What can i do to get the result of these parameter on cst ? thanks in advance
Actually cst requires symmetical boundary in all palne for calculating stable radiation pattern.
Hi. I´m simulating a offset dish, i was wondering if cst is capable of calculating the focal point of the antenna? Using cst 2006. Best Regards.
this may sound to be simple but there is some confusion regarding polarization status of antennne in cst. 1:how to determine that antenna is linearly polarized or circular or elliptical? 2: if its linear then how to determine whether its vertical polarized or horizontally polarized? 3: if its circular or elliptical polarized how to determ
hello everyone, anyone know how to calculate the efficiency in percent using cst? hope u all can help me. regards, kyg
hi all, can we model a human body part with a tumor using cst microwave studio,how can we do the near feild pattern measurement of an antenna using cst
anyone tell me how can i plot the radaition pattern(polar plot) for comparison purpose from HFSS to cst ? i m unable to import result from HFSS to cst for radaition patern (polar plot) plz hep me
We know that the radiation pattern of a patch antenna fed by a coaxial cable is monopole-type pattern. I already got this kind of trivial example from cst help. Then, I just scaled it to make the antenna resonate at high frequency, let's say around 50 GHz. Everything seems quite simple, but the radiation patterns at (...)