Walk-through millimeter wave imaging testbed based on double multistatic cross arrays

Abstract

A walk-through millimeter wave imaging testbed using double multistatic cross arrays is presented. The imaging testbed consists of a vector network analyzer, a power amplifier, a low-noise amplifier, 36 SP6T electrical switchers, and double homemade multistatic cross arrays placed on both sides of the imaging area. The imaging algorithm based on the range migration algorithm is deduced, and the imaging performance is analyzed. The metallic ball experimental results show that the imaging resolution is close to the theoretical value, and demonstrate the imaging feasibility of the testbed working in mutual mode.