Millimeter wave wideband high gain antenna based on gap waveguide technology

Paper i proceeding, 2017

In this work, we present a wideband gap waveguide planar array antenna for millimeter wave point to point communication systems. The proposed antenna is designed using ridge gap waveguide technology and the design is based on the cavity-backed slots as the core radiating elements. There exists a coupling slot in the cavity layer which allows the excitation of the radiating slot elements using ridge gap waveguide feeding section. The designed antenna have 8×8 radiating slot elements and the antenna operate over 15% relative bandwidth from 50-67GHz frequency range with -11 dB reflection coefficient. The measured gain for the slot array is about 27 dBi at the center of the band.