Directional Antenna Information

0055-EX-ST-2010 Text Documents

University of Southern California

2010-02-01ELS_104340

Appendix C
                                                          Ground Antenna Gain Pattern

Introduction

This appendix supplements the information provided during the online Special
Temporary Authority application process. The following gain pattern was produced
using a numerical simulation engine, NEC. This antenna represents the anticipated
design of the ground station antenna. The antenna will track the satellite as it moves
across the sky.

Antenna Design

The Earth Station antenna will be constructed using a 12 foot parabolic dish reflector
and a custom-design helical feed antenna. The estimated maximum gain is 23dBi with a
20 degree full angle beam width. These specifications are valid for 437MHz. The 3D
antenna gain pattern is shown in Figure 1. The horizontal plane is shown in Figure 2 and
the vertical plane is shown in Figure 3.




                                        Figure 1



Appendix C, CAERUS FCC Application                                               page 1


                                     Figure 2




Appendix C, CAERUS FCC Application              page 2


                                     Figure 3




Appendix C, CAERUS FCC Application              page 3



Document Created: 2010-02-01 15:33:43
Document Modified: 2010-02-01 15:33:43

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