Phased Array With Low-Angle Scanning and 46:1 Bandwidth

An extremely wideband (EWB) antenna array is presented that covers the UHF to $C$ -bands (0.13–6 GHz). The array has dual-linear polarization and is capable of wide-angle scanning. Notably, this array achieves a 46:1 contiguous impedance bandwidth at broadside with VSWR $12\times12$ array prototype was fabricated and tested to verify the bandwidth and gain performance of a finite array. The simulated radiation efficiency was demonstrated to be 72% on average across the band.