ITU R F 1569:2002
ITU R F 1569:2002 Technical And Operational Characteristics For The Fixed Service Using High Altitude Platform Stations In The Bands 27.5-28.35 Ghz And 31-31.3 Ghz
Table of Contents
ANNEX1-TypicaltechnicalparametersfortheFSusingHAPSinthebands27.5-28.35GHzand31-31.3GHz
1Introduction
2OutlineofatypicalHAPS-basedsystem
3AltitudeofHAPS
4Minimumoperationalelevationangle
5On-boardmultibeamantenna
6Shieldingeffectbyairshiponbackwardradiation
7ATPC
8Linkavailability
9Interferenceconsiderations
10Upperboundofthenumberofsimultaneouslytransmitting
carriers
11Out-of-bandemissionforHAPSuplinkusingthe31GHz
band
11.1Cut-offcharacteristicsofIFBPF
11.2OutputnoisepoweroftransmittingRFmodule
12Summary
APPENDIX1TOANNEX1-TypicallinkbudgetsforHAPSsystem
using28/31GHzband
APPENDIX2TOANNEX1-Measuredresultsofunwanted
emissionfromtransmitterat31GHz
band
1Introduction
2Configurationoftransmitter
3Measuredresults
3.1Measurementsystem
3.2Measuredresultsofunwantedemission
4Summary
APPENDIX3TOANNEX1-Alternativecellconfiguration