Analysis of extending the field-of-view of reverse-microscope imaging system at millimeter-wavelengths

In this paper, focal field of reverse-microscope imaging system at millimeter wavelengths is analyzed with ray-tracing method and Stratton-Chu vector diffraction integral formula. Calculations have been compared with experiments and agreement is found. Lens profile is optimized to reduce aberrations and extend field-of-view of the imaging system. The numerical results are presented to show the field distribution of the optimized imaging system.