Phase Retrieval in Tabletop Radar Range

Abstract

We are describing the capability to measure the phase of the return signal in a tabletop radar range. The radar rage has a scale factor of 100,000 which allows to use near IR wavelength instead of radio frequency. Accurate scale models are manufactured using multiphoton 3D printer with nanometric resolution. We demonstrated that using phase shifting interferometry, this radar range can retrieve the phase of the radar cross section of complex objects similar to SAR or ISAR radar systems.