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This chapter describes the development andPolarization converters application of a multibandMultiband polarizationPolarization converter that utilizes FrequencyFrequency Selective SurfacesFrequency selective surface (FSS) to control several features of electromagneticElectromagnetic (EM) waves, such as amplitude, phase, and polarization. The suggested reflective-type dual-polarized polarization transformer functions efficiently across the frequency range from C to Ku bands. The device accomplishes the conversion of linear polarization to circular polarization across different frequency ranges with different fractional bandwidths (FBW). In addition, it achieves linear-cross polarization conversions with a minimum Polarization Conversion Ratio (PCR) of 90% in the frequency ranges of 4.92–5.18 GHz (5.15% fractional bandwidthBandwidth), 8.32–9.41 GHz (12.30% fractional bandwidthFractional bandwidth), and 15.56–16.25 GHz (4.34% fractional bandwidth). The polarizer design, featuring an eight-obsessed square loop and an arrow coupled orthogonally on an FR-4 substrateFR-4 substrate, is optimized using the FEM in ANSYS HFSSHFSS. The performance is verified by conducting simulations and experimental measurements, which consistently show successful polarization conversion. The suggested design, characterized by its small size, ability to operate on several frequency bands, and consistent performance even when the incident angles change, can be used in real-time applications in contemporary communicationCommunication systems.

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Multiband Polarization Converters

  • 章节

  • 发表日期：

    2026年

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  • Sukomal Dey,
  • Mohammad Abdul Shukoor,
  • Shiban Kishen Koul

摘要

This chapter describes the development andPolarization converters application of a multibandMultiband polarizationPolarization converter that utilizes FrequencyFrequency Selective SurfacesFrequency selective surface (FSS) to control several features of electromagneticElectromagnetic (EM) waves, such as amplitude, phase, and polarization. The suggested reflective-type dual-polarized polarization transformer functions efficiently across the frequency range from C to Ku bands. The device accomplishes the conversion of linear polarization to circular polarization across different frequency ranges with different fractional bandwidths (FBW). In addition, it achieves linear-cross polarization conversions with a minimum Polarization Conversion Ratio (PCR) of 90% in the frequency ranges of 4.92–5.18 GHz (5.15% fractional bandwidthBandwidth), 8.32–9.41 GHz (12.30% fractional bandwidthFractional bandwidth), and 15.56–16.25 GHz (4.34% fractional bandwidth). The polarizer design, featuring an eight-obsessed square loop and an arrow coupled orthogonally on an FR-4 substrateFR-4 substrate, is optimized using the FEM in ANSYS HFSSHFSS. The performance is verified by conducting simulations and experimental measurements, which consistently show successful polarization conversion. The suggested design, characterized by its small size, ability to operate on several frequency bands, and consistent performance even when the incident angles change, can be used in real-time applications in contemporary communicationCommunication systems.