A Low-Cost Light-Weight Ultrawideband Wide-Angle Scanning Tightly Coupled Dipole Array Loaded With Multilayer Metallic Strips

This article presents a new ultrawideband wide-angle scanning tightly coupled dipole array loaded with multilayer metallic strips. The strips, which is composed of several narrow strips different lengths, are used to equivalent the metal patch has specific shape. It can help achieve smoother impedance transform from free space. An circuit model (ECM) unit cell proposed analyze and design array. Thanks be fed by simple feeding structure, avoiding matching network located below ground plane. Also, all components printed on single dielectric substrate, resulting in low-cost light-weight 6.2:1 bandwidth voltage stand wave ratio (VSWR) <; 3 while ±60° planes. total profile 0.13 wavelength at 1.4 GHz. Finally, an 8×8 prototype fabricated measured. measured results prove feasibility design.