Feasibility of indoor spherical near field antenna measurement facility in VHF range

This paper details a study on the feasibility of an indoor antenna spherical near field measurement system in VHF range. Any constraints in terms of manufacturing or building are taken into account. Only electromagnetic and mechanical aspects required for antenna characterization are analyzed in order to appreciate such a measurement facility. After introduction on measurement needs in low VHF range, authors focus on ferrite performances analyses. Then a complete reflectivity analysis is done for each constituting elements of the facility. Finally is provided a global budget error to appreciate the feasibility of the antenna measurement system and prospects axes are discussed.