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Where To Find This Example

AWR Version 14

Select Help > Open Examples... from the menus and type either the example name listed above or one of the keywords below.

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AWR Version 13

This example was renamed since the previous version. Please see Previous Example Page for the version 13 page.

Design Notes

Log Spiral Antenna

(Courtesy of L3 Communications, Inc.)

In this example, PPC-RHCP Radiation Pattern and PPC-LHCP Radiation Pattern measurements are used. For information on a specific measurement, select the Meas Help button in the Modify Measurement dialog.

Setup

Schematic layout Log_Spiral was created using a script contained in the project.  To run the script, select Scripts > Project Scripts > Log Spiral (Main).  Further discussion of the script is outside the scope of this project.      The script will create the log spiral gemoetry in the "Spiral" EM document.   

Results

The PPC-RHCP Radiation Pattern and PP-LHCP Radiation Pattern measurements are displayed on graph Principle Plane Cut Antenna Patterns.  The impedance of the antenna is displayed on graph Match.  

Graph - Principle Plane Cut Antenna Patterns

Graph - Match