Low Attenuation Dichroic Sub-Reflector For Wide Incident Angles For Ka/Ku Band Satellite Antenna Systems: An ECA Analysis

In this paper, we conduct an equivalent circuit approach (ECA) analysis to investigate the incident angle dependence on the performance of different frequency-selective-surface structures and arrangements in dichroic sub-reflectors (DSR’s). We find a DSR with low-attenuation performance for a range of incident angles, capable of combining both Ku band TV and Ka band broadband interactive services with the LNB located beside the feedarm of a one-arm satellite antenna dish.