Double-Ridged Horn Antenna
Application ID: 41701
A double-ridged horn antenna is popularly used in anechoic chambers to characterize an antenna under test (AUT), from S-band to Ku-band, due to its reliable performance in a wideband frequency range. This tutorial models a double-ridged horn antenna and computes the voltage standing wave ratio (VSWR), far-field radiation pattern, and antenna directivity.
A lumped port is assigned on the boundary between the inner and outer conducting surface at the end of the coaxial connector. The outermost layer of the air domain is configured to be a perfectly matched layer (PML), which simulates the absorption of all outgoing radiation from the antenna as would occur in a real anechoic chamber. The mesh is dynamically controlled by the Electromagnetic Waves, Frequency Domain interface based on each simulation frequency.
This model example illustrates applications of this type that would nominally be built using the following products:
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.