NEC space activities for telecommunication satellite system - APRSAF
NEC space activities for telecommunication satellite system - APRSAF
NEC space activities for telecommunication satellite system - APRSAF
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3.Advanced products -onboard processor-Digital beam <strong>for</strong>mer3.3M reflectorprobearrayDigital beam <strong>for</strong>mer with reflectortest were per<strong>for</strong>med in anechoicchamber in Kyoto university.Antenna per<strong>for</strong>mance shown belowwere verified by the comparisonbetween theory(blue line) andmeasurement data (red line)*1.Exampleof dataZBeam <strong>for</strong>merXYAntenna per<strong>for</strong>mance using on board processor(digital beam <strong>for</strong>mer) wereverified in anechoic chamber.© National Institute of In<strong>for</strong>mation and Communications Technology*1) Y.Fujino,et.al.,’ Characterization of DBF/channelizer with Deployable Reflector <strong>for</strong> Satellite/Terrestrial Integrated mobile CommunicationSystem’, Proc., Joint Conference on Satellite Communications , vol. SAT2012-42, pp. 95-99, (2012/10).Page 20© <strong>NEC</strong> Corporation 2010
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