A millimeter wave Vivaldi antenna with contoured platted vias for next generation wireless communication systems

We present a millimeter wave slot coupled Vivaldi antenna (SCVA) for the 5^th generation wireless communication systems. The performance of proposed SCVA is studied with contoured platted via holes introduced along the radiating tapered slots. The designed SCVA is compact with a size of 19.3×73.45 mm². The simulation results show that the reflection coefficient (S11) is less than −10 dB from 24 GHz-40 GHz with an average gain of 13 dBi over the entire bandwidth. The radiation pattern is symmetrical in both azimuth and elevation planes. The dispersion, when ultra-short pulses of 16 GHz bandwidth are received by the proposed antenna, is of value less than 1 %.