In this paper, the numerical computation of resonant frequency of the two gap-coupled circular microstrip patch antenna loaded with shorting post by using cavity model is presented. The numerically ...

The new dish, Deep Space Station 33, will be a 112-foot-wide (34 meters) multifrequency beam-waveguide antenna (BWG), according to the NASA statement. This sort of antenna has five mirrors that ...

This waveguide feeds a micro-machined horn antenna. The developed technology is based on the micromachining of an air-filled waveguide on a first substrate and a horn antenna on a second one. These ...