Frequency notched UWB elliptical dipole tag with multi-bit data scattering properties

A novel method is presented to assign and recover multi-bit data in a metallic tag structure. A planar elliptical dipole tag was used as an ultra wideband structure. Two arms of this dipole were connected to each other through a metallic strip. Notch frequencies were introduced by placing slots in the elliptical dipole structure. The simulation results revealed that these frequencies could be recovered in the RCS spectrum.