Energy tunneling through narrow waveguide channel and design of small antennas

Energy tunneling through narrow waveguide channel and design of small antennas

Blog Article

In Basil this paper we investigate the conditions for energy tunneling through narrow channel obtained by reducing the height of rectangular waveguide.Tunneling of the energy occurs at the frequency for which the effective dielectric permittivity of the channel becomes equal to zero, so it can be treated as an ENZ (epsilon-near-zero) metamaterial.We investigated how geometry of the channel and Artwork dielectric permittivity affect the transmission coefficient and field density in the channel.

Adding slots in the channel, which are placed orthogonally to the wave propagation, we designed a small antenna with directivity of 5.44 dBi at the frequency of 3 GHz.