Attachment Attachment D

This document pretains to SES-AMD-20190221-00304 for Amended Filing on a Satellite Earth Station filing.


                             RADIATION HAZARD CALCULATIONS FOR                 9.2 meter EARTH STATION


             Nomenclature                  Formula                    Value    Unit


       INPUT PARAMETERS

D,. Antenna Diameter                                                    9.20 meters

d •Diameter of Feed Mouth                                             0.029    meters

P • Max Power Into Antenna                                               200 Watts


n = Apperture Effeclency                                                49%

k =Wavelength @ 29.1GHz                                              0.0103    meters


      CALCULATED VALUES

A = Area of Reflector                      PI*D"214                  66.476    meters"2

I•Length of Near Field                      D"2/4k                     2053    meters

L = Beginning of Far Field                 0.6D"2/k                    4926    meters

G,. Antenna Gain@ 28.6 GHz                n(PI*D/k)"2             3,851,881 65.9 dBI


a = Area of Feed Mouth                     Pl*d"2/4                  0.0007    meters"2


               POWER DENSITY CALCULATIONS


                                               Maximum Power Density In Region
                Region                                                                Hazard Assessment
                                           Formula             Value (mW/cm"2) (FCC MPE Limit= 5 mW/cm"2)


1Near Field                                 4nP/A                       0.59            < FCC MPE Limit

2Far Field                               GP/(4(PI)L"2)                  0.25            < FCC MPE Limit

3 Transition                            <= Nr Fld Region                0.59            < FCC MPE Limit

4 Near Reflector Surface                     4P/A                       1.20            < FCC MPE Limit

5 Between Reflector & Ground                  PIA                       0.30            < FCC MPE Limit

6 Between Subreflector and                   4P/a                  121116.7           > FCC MPE Limit
 Feed
                                                                                                            I


                             RADIATION HAZARD CALCULATIONS FOR                 9.2 meter EARTH STATION


              Nomenclature                 Formula                    Value    Unit



        INPUT PARAMETERS

D • Antenna Diameter                                                    9.20 meters

d • Diameter of Feed Mouth                                            0.029    meters

P •Max Power Into Antenna                                                200 Watts


n = Apperture Effeclency                                                49%

k =Wavelength @ 51.4 GHz                                             0.0058    meters


       CALCULATED VALUES

A • Area of Reflector                                                66.476    meters"2

I • Length of Near Field                                               3626    meters

L = Beginning of Far Field                                            8702     meters

G • Antenna Gain @ 51.4 GHz               n(PI*D/k)"2            12,017,472 70.8 dBI


a • Area of Feed Mouth                                               0.0007    meters"2


               POWER DENSITY CALCULATIONS


                                               Maximum Power Density In Region
                 Region                                                                Hazard Assessment
                                           Formula              Value (mW/cm"2) (FCC MPE Limit= 5 mW/cm"2)


1 Near Field                                4nP/A                       0.59            < FCC MPE Limit

2 Far Field                              GP/(4(PI)L"2)                  0.25            < FCC MPE Limit

3 Transition                            <= Nr Fld Region                0.59            < FCC MPE Limit

4 Near Reflector Surface                     4P/A                       1.20            < FCC MPE Limit

5 Between Reflector & Ground                  PIA                       0.30            < FCC MPE Limit

6 Between Subreflector and                   4P/a                  121116.7           >FCC MPE Limit
 Feed                                                                                                        .I



Document Created: 2019-02-19 16:50:51
Document Modified: 2019-02-19 16:50:51

© 2019 FCC.report
This site is not affiliated with or endorsed by the FCC