A Tightly Coupled Ultra‐Wideband Antenna Array With Wide‐Angle Scanning Capability Based on a Novel Interdigital Structure. - Guo, Qingchao; Ran, Da; Yuan, Ying; Wang, Leisong; Jing, Shuqi; Xu, Liming; Zhang, Tianliang; Tütüncü, Bilal (International Journal of Antennas & Propagation, 2026)