APPLICATION OF MILLIMETER-WAVE IN VERIFICATION OF SCALE-MODEL MEASUREMENT FOR RADAR CROSS-SECTION

According to the physical optic approximation, a physical scale factor is suggested for scale model measurement of radar cross section (RCS) , By this factor, the models of radar targets can be tested at the sam e frequency as prototype. This is significant for the lack of experime ntal equipment required or the problem of frequency dependency of rada r absorbing materials on the objects. For the purpose of further verif ication and comparison, millimeter-wave is used to measure the model a t the wavelength scaling down proportionally to the prototype. And the measurements of the models are also carried out at microwave band (sa me working wavelength with prototype). The computed results from model s agree well with the data by prototype itself.