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Type: Posts; User: gayathrim

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    Closed: HFSS surface mesh deformed error

    Hi, I'm trying to simulate a spiral antenna in hfss but I'm getting a constant error "surface mesh is deformed too much on Bodies". Can anyone explain the error? Thanks in advance.
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    Closed: Re: Circular polarization using coupler

    Also, since there are two ports, which return loss should we consider? s11 or s22? or the resultant?
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    Closed: Re: Circular polarization using coupler

    yes, it is. and the axial ratio at non resonating frequencies are less that 3 dB. but at resonating points, greater that 15dB.
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    Closed: Re: Circular polarization using coupler

    I tried that. I used two lump ports positioned 90 degrees apart and sources changed to phase 0 and 90 respectively. however, i'm still not able to achieve an axial ratio vs frequency below 3 dB for...
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    Closed: Circular polarization using coupler

    hello,
    i'm designing a patch antenna in hfss. in order to achieve circular polarization i'm planning to use a 90 degree hybrid coupler. Is it possible to create a 90 degree phase shift in orthogonal...
  6. Closed: Circular polarization using 90 degree hybrid coupler

    hello, Im designing a multi-band circularly polarized patch antenna in hfss. In order to achieve circular polarization, i'm using a 90 degree phase shift between two ports . however, while checking...
  7. Closed: Re: Real time plotting of radiation pattern using matlab

    hello, i did try using the drawnow command. but it only plots till the end of the existing value in the text file. the plot doesn't update if i add more data to the text file. is there any way to...
  8. Closed: Real time plotting of radiation pattern using matlab

    hello,
    can anyone suggest any method to plot the radiation pattern in reatime using code or toolbox in matlab? i need to plot a live moving graph while reading the angle and gain. thanks in advance
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    Closed: Re: Design of 45 degree slant polarizer

    so is there a way to improve the efficiency in this case without changing the orientation of the receiving antenna?
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    Closed: Re: Design of 45 degree slant polarizer

    sorry for the ambiguity. the receiving signal is 45 degree polarised. the receiver monopole antenna is vertically oriented and hence the polarisation. the orientation is fixed. can a polariser be...
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    Closed: LCD arduino printing issue

    hi,
    i have a counter printing values from 0 to 360, with a 0.1 increment in each loop count. however, after a specific value(232), instead of 232.10, the lcd prints 232.11 232.21 232.31 etc.. i...
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    Closed: Re: Design of 45 degree slant polarizer

    i have a monopole antenna with a fixed orientation that's vertically polarized. i want to change the polarisation to slant(45 degree). is it possible to change the polarisation without changing the...
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    Closed: Re: Pause and resume function in arduino lcd

    #include <LiquidCrystal.h>
    const int rs = 7, en = 6, d4 = 11, d5 = 10, d6 = 9, d7 = 8; //lcd arduino interface
    LiquidCrystal lcd(rs, en, d4, d5, d6, d7);


    #define enable 2
    #define load 3...
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    Closed: Pause and resume function in arduino lcd

    hi, i have a keypad and 16x4 connected to an arduino. the start button in the keypad triggers a relay and show a count in the lcd. also, there is a pause/resume key as well. when the pause key is...
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    Closed: Re: junk values in lcd connected to arduino

    any rectification methods?
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    Closed: Re: Design of 45 degree slant polarizer

    i meant antenna polarizer to change the polarization of the antenna from linear or circular polarization to slant polarization.
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    Closed: junk values in lcd connected to arduino

    hello, i'm trying to interface an lcd to an arduino and keypad. The keys of the keypad are connected to the arduino and prints values of keys and performs functions based on the key pressed. the...
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    Closed: Design of 45 degree slant polarizer

    can anyone provide any design reference for a 45 degree slant polarizer? thanks in advance.
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    Closed: Stacked triple band patch antenna

    hello, can anyone please explain in detail how stacking of gps patch antenna works? as in, do we stack in such a way that each patch resonates at one desired frequency? if i want to design a triple...
  20. Closed: Re: triple band right hand circular polarized patch antenna

    Hi, I'm designing a patch antenna for GPS application in HFSS software. all the dimensions of the patch are as per calculations. I have three frequencies resonating at the required frequencies....
  21. Closed: triple band right hand circular polarized patch antenna

    Hi, i'm unable to achieve right hand circular polarization for all the bands in my tri-band patch antenna. none of the conventional methods like side truncation or adding slots seems to work. can...
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