Compact Reconfigurable Ultra Wide Band and 5G Narrow Band Vivaldi Tapered Slot Antenna

For a multiband communication system, a simple compact reconfigurable Vivaldi Tapered Slot Antenna (VTSA) is analyzed and designed in this paper. The designed antenna is aimed to switch between Ultra Wide Band (UWB) frequency band and one of the recent 5G low-frequency Narrow Band (NB:5.975 GHz – 7.125 GHz). The simulation return loss S 11 is less than −11.36 dB and −11.2 dB for UWB (2.78 GHz–11.2GHz) and NB (5.96 GHz-7.65 GHz) cases, respectively. 7.03 dBi and 6.3 dBi peak gains are obtained for UWB and NB, respectively. In this work, Computer Simulation Technology (CST) software based on Finite Integration Technique (FIT) is used.