Experimental Measurement of Fields Excited Inside the Fuselage of an Aircraft

In computing the fields excited inside the fuselage of an aircraft [1] when subjected to external electromagnetic (EM) radiation, the results of [2]-[4] have been used and the fields were assumed to propagate in free space instead of inside a cavity. This measurement program shows that it is improper to do so since the presence of metallic structures and the cavity resonances may account for deviations ofover 20 dB in relation to the free-space field.