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Recent content by acrislg

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    Receive antenna simulation in CST

    Hi to all, I need to simulate the performance of a receive antenna when this is excited by a near-field source. First of all, I hace exported the near-field from another CST MWS simulation. Then I have imported the near-field source in another simulation when I have placed also the receive...
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    refraction index simulation in CST

    Hi to all? Can anyone tell me how to simulate a difraction index with CST? I am simulating a mushroom structure and I need to simulate its refraction index. Can anyone help me please? Than you so much.
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    Rectangular Waveguide Excitation

    Hi to all, I need to excitate a rectangular waveguide employing a planar microstrip structure. The problem is that I need to insert the planar microstrip PCB parallel to the h-plane of the waveguide. I have found some papers which employ a vivaldi or slot microstrip antenna in order to excitate...
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    Theoretical antenna analysis (Ideal cos power distribution, patch antenna)

    Hi to all, I need the theoretical expressions for the far-field radiated field of following antennas: - Ideal cos to nth power source. - Rectangular and circular patch antenna. Can anyone help me? Thank you so much.
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    Vertical SMP connector

    Hello, I would need one CAD model (3D structure in .step o .sat) of a vertical SMP connector (frequency = 7.5 GHz) I would like to simulate it with the rest of my structure. Can anyone help me? Thank you. Bye.
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    Discrete Port Defintion in CST

    I used to use discrete ports for microstrip antennas simulation. I select two points and define the discrete port between them. In the attached file you can find a microstirp filter with discrete ports. Bye
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    How to save the plots in CST Microwave

    Hello, You can export the plot in two different formats: - ascii file - bmp You must select the plot you want to save and go to file--> export--> Bye
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    RF Isolators and Circulators

    Hi, I don't know which is electromagnetic tool you are using but in CST you can find some interesting examples of microstirp and waveguide couplers and circulators. Maybe these examples can help you. Bye
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    Large Phased Array - Distribution network

    Hi to all, Now I am working on a large phased array antenna. The design of the distribution network can be a big risk when the number of antenna elements is high. I would like to review the newest literature about this topic (novel distribution networks for large phased arrays). Can anyone tell...
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    Hairpin microstrip filter for ku band

    Thank you so much to all of you. Only one more question. I need to design a very compact filter in ku band. The return losses must be better than 15 dB (between 11GHz-12.75 GHz) and the rejection must be better than 25 db (between 14-14,5GHz). I have choosen the hairpin structure but I am not...
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    Hairpin microstrip filter for ku band

    Hi to all, I have to design a hairpin microstirp filter for ku band. I don't Know how to calculate the dimensions of the filter. Can anyone help me or tell me any reference? Thank you so much.
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    Question about S-parameter analysis

    Hi I used CST to make this kind of analysis and this program allows to use different S-parameter file formats. Only, be sure that the simulation frequency range is within both files. Bye
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    3D pattern problem in Matlab

    Hi You can use mesh and surf commands: Be sure to X,Y and Z have the same dimmensions. The following code plot the 3D radiation pattern of an antenna: Phi=(-180:1:180)*pi/180; Theta=(0:180)*pi/180; [PHI,THETA]=meshgrid(Phi,Theta); R= VERTICAL --> This is the radiation field...
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    Ku band microstrip filter

    I am using CST. And the insertion losses must be as small as possible, 0.2 or 0.3 dB would be good values. Thank you so much. Bye
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    Ku band microstrip filter

    Hi to all, I have to design (I am using CST) a compact microstrip filter for ku band. I do not know how to design this device. Can anyone recommend me any book or reference please? Thank you so much in advance. Regards.
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