Antenna Modeling by Near Field Equivalent Sources in Radio Frequency Interoperability

This paper deals with the use of Electro Magnetic (EM) simulation in Radio Frequency Interoperability (RFI) problems [1]. More specifically, the feasibility of antenna modeling with near field equivalent sources in Ultra High Frequency (UHF) band is presented. After a brief introduction, section H describes RFI context and the methodology used to treat RFI problems on large platforms. A focus on the benefit brought by Electro Magnetic (EM) simulation is done, underlying the key point of antenna modeling in EM simulation representativeness. In section III, antenna modeling by near-field equivalent sources derived front measurement is introduced and validated on two applications cases in UHF band. The first one is the calculation of installed radiating performance, and the second one is the calculation of antennas coupling coefficient. Finally, conclusions are drawn.