Dielectric rod antenna with substrate integrated waveguide planar feed for wide band applications

Dielectric rod antenna (DRA) elements have numerous advantages over conventional waveguide and horn antenna elements. They have low insertion loss, broadband input match, high mutual decoupling efficiency, and low cost manufacturing. Additionally, the radiation pattern of the dielectric rod antenna is almost frequency independent. However, its feeding is generally a challenge. This paper demonstrates a novel ultra-wide band (UWB) DRA comprised of a dual core for wide band operation based on SIW technology.