Research on Field Strength Calculation of Antenna Far Field

In a two-dimensional space, the outline is approximated by a triangular column, and an array antenna is simulated with a set of infinitely long line current sources. The calculation is carried out using the methods of moments (MoM) and the finite element method (FEM) respectively, to analyze the influence on the radiation field of the array antenna in the presence of a conductor nose cone. Experimental results show that, as the rotation angle of the antenna array changes, conductor shielding has a significant impact on the far field strength and deviation angle, especially the nose cone size has a significant effect on the antenna radiation field.