Multi-section auto-focus millimeter-wave holography

This paper presents a newly invented multi-section auto-focus millimeter wave holography scheme by using a single frequency signal. Both simulation and demonstration results are provided and compared with conventional holography and wideband imaging. This new multi-section auto-focus holography scheme demonstrates much better imaging resolution than conventional holography, has the similar imaging quality as the wideband imaging, but with one order less processing time and much simpler hardware requirement.