CST2013 MWS Examples: S-Parameter and farfield calcualtion of a spiral antenna

下载CST设计文件

General Description

In this example the calculation of the S-Parameter and the farfield of a spiral antenna are presented. The antenna is placed above an infinite ground plane.

Structure Generation

The structure is constructed by using the predefined macro Home: Macros Construct Coils Planar Circular Spiral - rectangular cross section and some additional construction steps to construct an infinitely thin PEC sheet antenna.

Solver Setup

As excitation a discrete face port is defined as well as a farfield monitor at 5.87 GHz. In the special solver parameters the option Treat electric boundary condition as infinite ground plane (ZMin) is enabled. For a fast broadband S-Parameter calculation the option "Use broadband frequency sweep" is enabled.

Post Processing

The farfield information is stored in the folder Farfield in the navigation tree. The calculated S-Parameter can be found in the1D Results folder.