Recent content by Noudi

  1. N

    Graduate What Does Higher Permittivity Substrates Mean for Unit-to-Wavelength Ratio?

    hi friends, can anybody clear my concept about the following sentence. " if we use substrates with higher permittivity, like quartz or GaAs that has been used in previous successful experiments, the unit cell will have smaller unit-to-wavelength ratio".
  2. N

    Best Substrate for VHF applications

    Hi buddies, i am working on very high frequencies antenna applications. can anybody updates me about best suitable substrate material which exhibits low losses at THz and optical band. i appreciate that.
  3. N

    Smaller Antennas, Higher Frequencies: The Need for Size Reductions

    Thanks Dear.
  4. N

    Smaller Antennas, Higher Frequencies: The Need for Size Reductions

    Why antenna needs to be smaller in size with higher frequencies (EM waves)? please