In order to demonstrate the scanning advantages of including a MS with a driving antenna array, an infinite TCAA was simulated with both an infinite dielectric slab WAIM31,32 and then with an infinite version of the TC-UAJC based MS. The infinite nature of the geometries allowed us to simulate a unit cell of the corresponding finite TCAA-WAIM system. While this choice neglected some minor edge effects, it captures the essence of the performance of the realistic structure given the large extent of the fabricated MS sample. The TCAA is a wideband array and, hence, was selected to test appropriately the wideband performance of the MS. To analyze the reference dielectric slab WAIM, it was placed directly above the antenna array with the optimized parameters: the relative permittivity εr = 2.5 and thickness of dielectric slab hdi = 12.0 mm.