Evaluation of Applicability of Standard CW EMI/RFI Shielding Effectiveness Test Techniques to Assessment of EMP Hardness of Tactical Shelters

Abstract : This report investigates the validity of analytical techniques for converting continuous wave (CW) test data to values for electromagnetic pulse (EMP) to measure the EMP hardness of tactical shelters. MIL-STD-285 and specifications for CW testing IEEE 299 specify measurements in the near field using dipole and loop antennas. Consequently, the test wavefronts are spherical, rather than planar, as in the case of an EMP. Thus, correction factors for EMP needed to be developed.