Recent content by Noudi

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".

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.

Thanks Dear.

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