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.

[1]  F. Medina,et al.  Equivalent circuit for double annular aperture frequency selective surfaces , 2017, 2017 IEEE MTT-S International Conference on Numerical Electromagnetic and Multiphysics Modeling and Optimization for RF, Microwave, and Terahertz Applications (NEMO).

[2]  Francisco Medina,et al.  Simplified Modal Expansion to Analyze Frequency-Selective Surfaces: An Equivalent Circuit Approach , 2016, IEEE Transactions on Antennas and Propagation.

[3]  Miguel Beruete,et al.  Accurate Circuit Modeling of Fishnet Structures for Negative-Index-Medium Applications , 2016, IEEE Transactions on Microwave Theory and Techniques.

[4]  Francisco Medina,et al.  Analytical Multimodal Network Approach for 2-D Arrays of Planar Patches/Apertures Embedded in a Layered Medium , 2015, IEEE Transactions on Antennas and Propagation.

[5]  Clive Parini,et al.  Equivalent circuit method for analysis and synthesis of frequency selective surfaces , 2006 .

[6]  Jacques Verly,et al.  Physical Optics Polarization Scattering Matrix for a Right-Angle Dihedral , 1995 .

[7]  R. Kaul,et al.  Microwave engineering , 1989, IEEE Potentials.