While there has been some advancement on WAIM metasurfaces, most of the past work was focused on wide angle scanning over narrow bandwidths31,32. In this paper, we propose a new ultra-thin MS that can achieve both wideband operation and wide angle scanning. The MS is composed of strongly-coupled (termed tightly-coupled in the antenna literature) unequal arm Jerusalem cross (TC-UAJC) elements. The TC-UAJC is an evolved version of the Jerusalem cross40 and its derivatives41,42. The wide bandwidth is obtained by taking advantage of the tight coupling within and between the multi-resonant elements. The band of operation is located much lower than the MS’s resonance frequency to avoid the associated highly dispersive and lossy regions31. These losses are due to the total power absorbed by the MS near its resonance frequency. At frequencies near its resonance, the field concentration per unit cell in the metallic layers of the structure is increased, which in turn leads to an increase in the resistive heating43. This MS is fairly insensitive to the changing phases of the signals incident upon it over a wide bandwidth. As a result, it is able to maintain its performance for scanning angles of up to 70ο from the normal to the MS for both transverse magnetic (TM) and transverse electric (TE) polarized incident waves. The metasurface is integrated with a tightly coupled antenna array to validate its feasibility. It is shown that the metasurface-array combination provides improved scanning along the E (72ο), Η (80ο), and D (79ο) planes over a 6:1 impedance bandwidth without the need for bulky dielectrics or multi-layered structures, resulting in a light-weight antenna system with reduced profiles.