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Recent content by v_rayalu

  1. v_rayalu

    why do we need ground plane ?for antennas?

    One reason to have a ground plane(GP) is it is easier to feed such antennas. For instance, a dipole antenna needs a balun/coupler to have a balanced feed for the two arms. This balun can be eliminated by designing a monopole on ground plane, where a coax can directly feed the antenna. The outer...
  2. v_rayalu

    c++ passing array from function to main function wit pointer

    Re: c++ passing array from function to main function wit poi Can you be more specific on what your are trying to do Are you trying to return a pointer from a function or are you trying to pass a pointer to a function as its argument. Case 1: Function returns a pointer double * AllocMem(int n)...
  3. v_rayalu

    what is the difference between FDFD and FEM methods?

    differences between fem and fdtd FEM and FDFD are both frequency domain methods where the solution is obtained at a single frequency. The underlying equation they solve are the Maxwell's equations under time harmonic case. On the other hand, FDTD which is a time domain method solving maxwell's...
  4. v_rayalu

    Problem in solving Integral

    \[\int \frac{w^2}{w^2+a^2} dw = \int \left( 1- \frac{a^2}{w^2+a^2} \right)dw = w - a \tan^{-1}\frac{w}{a}\] Hope this helps Venkat
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