Two-Arm Helical Antenna
Application ID: 13681
A helical antenna has two major modes. One is normal mode and the other is axial mode. When the helical antenna is operating at the normal mode, its far-field radiation pattern is similar to the torus shaped pattern of a classic dipole antenna. At the axial mode, the helical antenna is resonant at a much higher frequency band than the normal mode operation, and works similarly to an end-fire array along the z-axis and generates a directive radiation pattern. This model analyzes a helical antenna at these two different modes. The S-parameters and far-field patterns are calculated at both operating modes, 385 MHz and 4.77 GHz.
This model example illustrates applications of this type that would nominally be built using the following products:RF Module
however, additional products may be required to completely define and model it. Furthermore, this example may also be defined and modeled using components from the following product combinations:
The combination of COMSOL® products required to model your application depends on several factors and may include boundary conditions, material properties, physics interfaces, and part libraries. Particular functionality may be common to several products. To determine the right combination of products for your modeling needs, review the Specification Chart and make use of a free evaluation license. The COMSOL Sales and Support teams are available for answering any questions you may have regarding this.