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Many thanks !
I tried the same method for this other circuit (see figures) but not able to get the frequency spectrum results. Could you comment on it?
Thanks
Sorry it may sound dumb but how can I do it? In equation editor?
How can I see this in HB simulation? I did run HB simulation but cant get the spectrum.
Thanks
Hello friends,
I have started to work on RF System design on ADS and I am new to it. I have designed a simple VCO (Fig.1) and can get the output signal in time domain (time vs voltage, Fig.2). I am however, cannot get the correct spectrum on frequency domain (dB vs frequency, Fig.3). How can I...
Hello,
Thanks for your reply.
Currently I don't have antenna magus software with me and the trial version won't let me use Sinuous antenna option. If you have the access to Antenna Magus with Sinuous antenna enabled then could you please send me the CST design for it? I need it for 6 GHz to 24...
Hi,
There is a macro in CST 2014 which you can use to generate a Gaussian beam.
Goto: Home > Macros > Solver > Sources > Gaussian Beam
You can put the desired parameters to generate the Gaussian beam as per your needs.
Regards
Hi,
I am trying to design the Sinuous antenna in CST but finding it difficult as CST only accepts Cartesian (X,Y) co-ordinates to draw the curve whereas all the equations for drawing Sinuous curve is in polar form.
Did anyone successfully made Sinuous antenna in CST? I need to do parametric...
@kela3kela
you have to design a simple power dividers keeping the impedance matching in mind. For example two 100ohms line joins with one 50 ohm line and the matching line should be sqrt(2)*Z0.
there are some examples given in Balanis and also in Pozar. Have a look it is quite straight forward...
Hello,
For designing the patch antenna for 60 GHz, you need to consider few things e.g. feeding, thickness and bandwidth. To begin with you can design the patch for f = 60 GHz using the formula given in Balanis. You can use inset feeding, coaxial feeding or aperture couple feeding for the...
Hello,
Have you tried to put a waveguide port at other end too, instead of lump resistance? If your microstrip is 50 ohms then second waveguide port should behave as a 50 ohm termination. You may assign souce as port 1 in TD / FD solver.
Regards
Praful
Hello,
You should design the feed alone and put two ports, one each at either side. Simulate for wide frequency band and look for S - parameters. They should be within the specified limits. As for physical dimensions for coaxial feed, you may look on internet for common SMA connector layouts...
Hello,
I have ordered a GPU based workstation for mainly doing CST simulations. It has got following specifications:
Dual Intel Xenon 5620 CPU
48 GB RAM
1 GB Nvidia Quadro 600 graphics card
Dual Nvidia Tesla C2075 GPU
I am expecting its delivery soon.
Is there any thing I should pay...
For CPW, you should use wave guide port.
The easiest way to define a coplanar waveguide port is to pick the two innermost substrate corners of the outer conductors. After picking the geometry, you can now open the port definition dialog box (Solve > Waveguide Ports). In this dialog box, simply...
It is straight forward is CST.
Choose the templete unit cell.
design your unit cell and simulate it in frequency domain. No need to change the boundary conditions as it will automatically taken care of. Once you get the desired reflection properties of your array then design the finite array...
Re: using discrete port
I would suggest that use adaptive meshing option. In transient solver option tick the adaptive meshing. As a default it will do the 6 passes. For antenna applications keep accuracy level below -40 dB. I keep it at -60 dB.
In case all the 6 passes are over and you...
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