A rhombic shaped uwb antenna with dual b and-reconfigurable characteristics

This article presents a planar ultra wideband (UWB) Antenna with dual band frequency-reconfigurable capability. A rhombic metal patch and 50 Ω coplanar waveguide (CPW) are built on FR4 substrate of 1 mm height. Two slots one is C-shape and another is L-shape have been etched out from the metal patch and ground plane respectively, which are responsible to achieve the reconfiguration characteristics with the help of RF- MEMS switches. Three RF-MEMS switches have been used to achieve the reconfigurable characteristics on two bands. The designed Antenna is satisfying all broadband conditions such as matched impedance, steady radiation patterns and constant gain along with reconfigurable characteristics.