• DOI:10.1109/APUSNCURSINRSM.2019.8888743
• Corpus ID: 119529109

Transmissive Suppressed-Order Diffraction Grating (SODG)

@article{Patri2019TransmissiveSD,
  title={Transmissive Suppressed-Order Diffraction Grating (SODG)},
  author={Ashutosh Patri and Guillaume Lavigne and Christophe Caloz},
  journal={2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting},
  year={2019},
  pages={1209-1210}
}

• A. Patri, G. Lavigne, C. Caloz
• Published 24 January 2019
• Physics
• 2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting

We present a novel type of Suppressed-Order Diffraction Grating (SODG). An SODG is a diffraction grating whose diffraction orders have all been suppressed except one that is selected to provide electromagnetic deflection. The proposed SODG is a transmissive grating that exhibits high-efficiency refraction-like deflection for all angles, including large angles that are generally challenging to achieve, while featuring a deeply subwavelength thickness, as required in the microwave regime. We first present the design rationale and guidelines, and next demonstrate such a 10.5 GHz SODG that reaches an efficiency of 90% at 70°.