Theoretical Model and Numerical Analysis for Helix-Conical Horn Antennas

摘要

In this paper a theoretical model of helix-conical horn antennas is presented. By analyzing the new structure of cylindrical waveguide with helix set in, the eigenvalue equation is derived. The internal and adiated fields are obtaiend. The separation condition of the main radiation modes for fast and slow waes is obtained. The radiation pattern is numrically calculated and agrees with the experimental data.