Microwave and millimeter-wave holographic imaging has been well developed at PNNL [1-12]. Near real time imaging systems using this technology have been developed using linear arrays of microwave/millimeter wave antennas that are sequentially switched electronically to allow high-speed sampling along the array axis. Mechanical scanning in a perpendicular direction to the array axis then completes the sampling of a two dimensional aperture of wideband holographic image data. This data can then be reconstructed using the wideband holographic imaging algorithm resulting in a focused image. The wideband holographic imaging technique is described in detail in [4]. A similar scanning technique can be employed in a cylindrical fashion using a linear array that is scanned over a circular path around the target to be imaged [3, 5, 7]. The invention described in this report, is concerned with a specific technique used to spatially scan, or sample, along the axis of the array that results in a reduction of the number of physical antenna elements needed by approximately one-half compared to established techniques.