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Coaxial Feed Cst

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29 Threads found on edaboard.com: Coaxial Feed Cst
I had made a double coaxial slot antenna at 915 MHz in cst microwave studio, the problem is with the feed as it is a cylindrical antenna the problem is with the feed. I had given it waveguide feed but the results are not coming appropriate.how to the cylinderical antenna feed and where (...)
I am having the same problem.Members plz antenna is to be fed from the bottom layer ground, to the patch on the top layer. can someone also give step by step instructions on creating the coaxial port. And secondly r there any formulas to calculate the precise probe feed point of 50 ohm excitation?
I have few questions regarding coaxial connector and coaxial feed design. 1. What type coaxial connector should be used for Microstrip patch when it is fed by probe feed . Can we use normal SMA connector or any special SMA connector available. 2. When designing coaxial (...)
Hi guys, I am trying to feed a microstrip patch antenna with a coaxial probe feed. Till now I m getting nothing although I have read the circular patch antenna tutorial provided in the help manual. Could anyone please suggest the correct method. I am using cst MWS.
make a coaxial line for antenna and then feed it with wave port see patch example of cst
Hi everybody! i designed a patch antenna with coaxial feed by cst, but after simulation, i get a strange results for s-parameter, and gain is about -200 dB and more. can somebody tell me what is wrong with my cst design. f =1.9 GHz , L =22 mm, W=31 mm, dielectric constant 11.9 , h=1.5 mm.95048
Hi, I need to simulate at cst preformence of reflector (dish)antenna (that have the dimension of d=12cm,f=8cm,freq=34.3GHz) and compare to the specsification of the real one reflector antenna I am using the the tamplate from :macros\constract\online\reflector dish but in this tamplate there isn't a feeding point (coaxial line port (...)
I have modeled a microstrip rectangular patch antenna with coaxial feed, if that's what you're looking for I can upload it... Let me know
I am trying to feed a microstrip patch antenna with a coaxial probe feed. Till now I m getting nothing although I have read the circular patch antenna tutorial provided in the help manual. Could anyone please suggest the correct method. I am using cst MWS. I have attached the file as well... Awaiting replies, Regards
Hi Rio, From my brief experience with PIFAs I noticed your lack of a ground plane and your short isn't coupled with one. Also if your going to use a coaxial type feed probe I suggest modelling that too with the use of a wave port. That said, I have modified your design with my suggestions (Find attached) ; although some further tweaks might be nee
Hi guys, I am designing a monopole with two cables attached to it. The ground plane is on top of the substrate and i'm hoping to feed the monopole by a coaxial feed from the bottom of the substrate. I have tried 'picking the face' of the bottom of the monopole and creating a waveguide port, however it comes up with the following (...)
Dear Suraya, feeding of spirals through coaxial cables is very tricky, as you need baluns (check Balanis book for that). I would suggest you simulate first with a discrete port between the two arms of the spiral, in order to check the antenna behaviour and then study some proper way of feeding!
Hello , I have create a dipole antenna using cst MWS but with a antenna wire template , i have put the port but i want to put a coaxial cable as feed transmissin line because i want to see the real result for the simulation. Anyone can help in creating the coaxial cable ? It's truly urgent !! Hope that this post (...)
Hello, You can choose the coaxial feed.....and give the co-ordinates wher you want to fix the probe....
Im a beginner in desperate need for help. I am designing a slotted bow tie patch antenna with a back coaxial feed which I have already created in cst. When a transient simulation is run, I get a practically non existant efficiency. When looking at the surface current, it appears that very little current is flowing on the patch surface. Where (...)
hi, can any one help me how to design the coaxial feed for Rectangular patch antenna using cst..i tried but still i cant get the result...i used to get the port by choosing 2cylinders radius 4 and 1.12 plz can any help me out through this
Hi.. I'm newbie here, :D I would like to re-design fractal microstrip patch antenna for my final year project from the attachment file. but i dont know how to design the coaxial feed for it antenna in cst. How should i define the port at the feed point. i'm using cst software to design. Thanks A Lot.. :) (...)
please anyone tell me and give me some link how to get the location for feeding point for coaxial feed probe in circular microstrip using cst and 50 ohm coaxial probe....:-?
Hi Any one know, how to feed dipole antenna to get UHF TV. I have designed dipole antenna according to Balanis Antenna theory book. I have used 75 ohms coaxial where centre feed is connected to one arm and outer conductor is connected to other arm to make sure balanced. Is any body know how we can connect SMA connector to make balun (...)
Hi freinds I want to know how to design balun coaxial feed in cst MWS to feed two archimedean spiral antenna. I need some information about balun coaxial feed. Plz help me to design baluns coaxial feed in cst. thank you Regards kaanee
I really need help on designing a coaxial feeding using cst. I know that I have to create 3 cylinders (inner, outer and dieelectric) but I did it wrongly (especially in doing insertion of inner, outer and dielectric) . Can anybody help me to explain step by step how to feed the coax. Thx in advance.
is coaxial or aperture coupled feeding of microstrip antenna possible using cst?
cst is very ok for coaxial feed. however in your case its mesh problem. Increase the mesh and you will get the right result.
i have a slot-loaded microstrip antenna shown in fed by a microstirp line feed.i think i have to define a waveguideport.but i can't do this.i looked tutorial pages but it told the coaxial feed port.what can i do?where i define the port;next to the feed line? is it same with coaxialfeed?
hi, I'm looking for best method for simulation of "UWB Antenna" including several patchs on a thick substrate and 2 coaxial feed line,except FDTD. whether FIT method is suitable for this? regards.
Hello! I'm trying to simulate a Biconical antenna in cst, but I having problems. It should be feed usind a coaxial cable thrugh the cones. Does anyone have some kind of advice for this simulation or any model that have good agreement with measures? I have tried a subgrid-meshing to get enough mesh between the port and the metallic (...)
Hello! I'm trying to simulate a Biconical antenna in cst, but I having problems. It should be feed usind a coaxial cable thrugh the cones. Does anyone have some kind of advice for this simulation or any model that have good agreement with measures? Here is the model I have done, if someone wants to have a look, done in (...)
I am simulating a mono antenna feed by coaxial line, and find that different length of coax line will lead to different S11 parameters. What length on earth should be? I have no idea to find the principle, Can anyone help me? Thanks very much!
Hi, I am trying to model a coaxial fed antenna using my own code but I don't know how the feed is modeled in HFSS or cst. Does any body have any idea how the feed is modeled in the case of waveport. Thanks in advance, BR Adel_48 Hi! First the eigenmodes of the transversal cut of the feedline (...)


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