Radiation and coupling between antennas mounted on a complex metallic structure

A hybrid uniform theory of diffraction-method of moments (UTD-MOM) technique is applied to evaluate the radiation and the coupling among antennas mounted on the same structure. The most common application is represented by the electromagnetic characterization of an aircraft provided with either aperture antennas or wire antennas. After expanding the radiated far field with spherical sampling functions, both the directivity and the radiated power are valuated by means of an analytical integration on the radiation pattern. The coupling among the antennas is computed and compared with some measurements performed on some single geometrical bodies