Reconstruction of Far Field Radiation Pattern from Hemispherical Near Field Measurements

摘要

In antenna measurements, radiation pattern is used to characterize the source regardless of its actual complexity. For electronically large antennas, far field measurements are very difficult to perform and therefore, near field measurements are applied. In this paper, we propose an inverse method for source current reconstruction method (SRM). The proposed method is based on reconstructing equivalent current from known electric field and estimating the far field pattern including the effect of real ground. Simulation and measurement results confirms the validity of the proposed method.