An analytical model of a uniformly illuminated parabolic antenna, shown below.
This antenna uses a polar coordinate system.
Field | Description |
---|---|
Design Frequency |
Please note that you will not see a change in link performance if the antenna is set to Dimension. ==== THEIRS //dev/AGI/R_STK_dev/Help/stkHelp/stkDesktop/Content/comm/ParabolicAntenna.htm#9Please note that you will not see a change in link performance when the antenna is set to Dimension. ==== YOURS //dgouger_main/Help/stkHelp/stkDesktop/Content/comm/ParabolicAntenna.htm <<<< |
Beamwidth | The beamwidth of the antenna gain pattern. Valid if Use Beamwidth is selected. The diameter and gain are automatically calculated on the basis of this value and the frequency. |
Diameter | Diameter of the dish. Valid if Use Diameter is selected. The beamwidth and gain are automatically calculated on the basis of this value and the frequency. |
Main-Lobe Gain | Select the Use Max Gain option and enter the value in dB. The diameter (or dimension) and beamwidth are automatically calculated on the basis of this value and the frequency. |
Efficiency | Specifies the efficiency factor of the dish, varying from 0 to 100 percent. Since no antenna is perfect, the efficiency factor allows you to specify the degradation in performance. Typical values fall in the range of 50 to 75 percent. |
Back-lobe Gain |
You can use Back-lobe gain in two different ways:
|