A Novel SIW Corrugated Travelling Wave Antennas Array for Microwave Imaging

Communication systems require antennas with compact size, low cost and losses, high gain and high efficiency. In order to realize a satisfactory antenna, these requirements are needed to design a compact structure with longitudinal radiation pattern. This antipodal antenna is combined with a waveguide integrated into the substrate (Integrated Waveguide SIW substrate) to operate in the C-band frequency. We analyze the behavior of the antenna arrays for different profiles in order to clearly demonstrate the role played by the exponential factor. The antipodal vivaldi antenna will be studied and simulated by the CST Micro Wave Studio simulator.