bhjuyff2020-12-13👍297 Antenna radio communication and exploration of an important component of the center line in various types of antennas are widely used in a variety of antenna information. Research, analysis of wire antenna near-field characteristics of antenna array, antenna measurement and electromagnetic compatibility, antennas, etc. to optimize the field of practical engineering applications of great value. Introduced the design of the main antenna development at home and abroad, symmetrical dipole antenna and the half-wave dipole antenna near-field radiation, input impedance, such as near-field characteristics of the basic theory, described in detail the basic knowledge of ANSYS software, high-frequency electromagnetic Analysis of the basic theory, and APDL command of basic knowledge flow. The use of EDA tools for finite element analysis software ANSYS to the center frequency of 150MHz, the work of a 500KHz frequency of half-wave dipole antenna near-field characteristics of the simulation analysis. Details of the physical environment of the simulation, finite element modeling, meshing, loading solution after the treatment process, the final half-wave dipole antenna near-field distribution and input impedance, and simulation results from a detailed analysis.