Vertical and Horizontal SIW Horn Antennas at 60 GHz

This paper presents a vertical (H-plane sectoral) and a horizontal (E-plane sectoral) polarization SIW antenna for applications at 60 GHz. These two antennas with two different polarizations are constructed from the same original antenna. In other words, just by some slight changes in the structure of the original antenna, a different polarization is obtained without changing the substrate thickness. The gain of vertical polarization antenna reaches 8.2 dBi while the horizontal polarization antenna gain is 10.5 dBi at 60 GHz.