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Type: Posts; User: ashahclpra

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  1. Replies
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    Closed: To measure the gain of MIMO antenna

    I want to find the gain (NOT about Diversity Gain) of my MIMO antenna. My MIMO consist of two antenna. so to find gain should i measure gain of one antenna at a time or power both antenna...
  2. Closed: how to search problem in antenna engineering

    hi i am prashant, i just got a Ph.D in RF and Microwave and i want to write some some for IEEE Transection.
    Please tell me how i find specific problem in antenna.
    thanks
  3. Closed: How to extract frequency dispersion curve of metasurface

    How can i extract frequency dispersion curve of metasurface in cst
  4. Closed: how metasurface improves the gain and return loss on microstrip antenna

    how the metasurface above the microstrip patch antenna improves the gain, return loss and other parameters.
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    Closed: Re: meta material unit cell simulation

    sir this is the simple meta material unit cell simulation and i want to extract the permittivity and permeability w.r.t frequency.
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    Closed: Re: meta material unit cell simulation

    Hi
    i refer the distance between unit cell and rad box i keep it at lambda/4.
    and please tell me how i extract the permeability and permittivity. I see many tutorial on youtube or internet of unit...
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    Closed: meta material unit cell simulation

    hi i am prashant, simulating metasurface unit cell in hfss but i found many difficulty how much distant is you box from unit cell.
    when i keep it at labbda/10 i didn't get satisfactory result....
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    Closed: coax feed length of patch antenna

    i am simulating the circular polarize patch antenna with coax feed. i am getting good AR and s11 at 2.45GHz. My coax feed length is 5mm. Is coax feed length affect any of these result if i change it....
  9. Closed: Re: change in axial ratio on changing frequency sweep

    i solve this model on both driven model and driven terminal. on increasing sweep i still get two different data , it dosen't show me any warning that your solution is not converge.
    so please tell me...
  10. Closed: change in axial ratio on changing frequency sweep

    i simulate the circular polarize patch antenna at 2.45 GHz and frequency sweep is 2.2 to 2.6 GHz i get good result on fast sweep but when i change the frequency sweep from 2.2 to 6 GHz my results...
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    Closed: co axial feed length

    please tell me how to design the feed length of co axial port in hfss , is it effect the gain of patch antenna. when i change the feed length my gain is varies or it depend upon the frequency.
    also...
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    Closed: negative gain in patch antenna

    i designed a circular polarize patch antenna of patc 80×80mm sq and substrate of size 90×90mm sq at 920MHz. the inner and outer radius of co axial port is 1mm and 3.9mm ,ε=3.38 but i got gain in...
  13. Closed: how to split the port into multiple port

    i want to simulate coupled coil but i assign the transmitting as lumpPort and receiving coil also as lumpPort but when i simulate it ask for splitting port into multiple port.
    so, please tell me...
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    Closed: coupling coil simulation on hfss

    can any one send one me the .hfss file of coupled coil simulation.

    i already make the receiver coil i face some problem with making transmitter coil , i can't excite it.

    Thanks
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    Closed: How to design couple coil

    Hellow,

    i want to simulate coupled square spiral coil. But i confuse how many port define in both the coil and how to find power efficiency. please also tell me the formula for s12 or...
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