TECHNIQUE FOR PREDICTING THE ELECTROMAGNETIC PERFORMANCE OF IMPEDANCE-LOADED DIELECTRIC SPACE-FRAME RADOME COMPONENTS

A method for predicting the electromagnetic fields scattered from fini te length inhomogeneous dielectric cylinders at arbitrary bistatic ang les when illuminated with arbitrarily polarised plane waves is describ ed. A computer model is developed and is validated by a series of dual polarisation measurements at X-band using a short slotted-waveguide a rray antenna in the presence of various near-field scatterers which si mulate parts of a typical space-frame radome structure. The model is u sed in a companion paper to predict the performance of several complet e impedance-loaded dielectric space-frame radomes.