A REVIEW OF BISTATIC K-SPACE IMAGING FOR ELECTROMAGNETIC PREDICTION CODES FOR SCATTERING AND ANTENNAS

A bistatic k-space imaging concept for frequency-domain (FD) electroma gnetic (EM) computer codes is presented. The concept enables the compu tation of images without the frequency sweep required for experimental images, resulting in a significant reduction in computational effort. This analytical imaging technique uses bistatic radiation computed fr om a generalized radiation integral. Images permit physical insight an d understanding into how a radiation or scattering pattern is produced , by decomposition of the resultant radiation into contributions from localized scattering centers, or hot spots. Knowledge of these hot spo ts permits a user to understand and modify the structure to obtain des ired features.