Files

early_version_direct_num_inv.pdf
  • Open Access
  • Adobe PDF
  • 3.83 MB
Download

Details

Authors
Abstract
A recent synthesis paradigm for tailoring the far-field radi - ation of leaky wave (LW) radiating metasurface (MTS) antennas is reviewed and experimentally validated. The considered antennas are realized with electrically small patches printed on a planar grounded dielectric slab. The patch layer is modeled as an impedance sheet whose spatial variation is initially designed to provide the desired LW effect from a pre - specified surface wave (SW) excitation. The synthesis method is based on the direct numerical solu- tion of the surface integral equation enforcing the sheet imped- ance boundary condition (IBC), the latter of which accurately describes the wave–MTS interaction in the homogenized limit. The class of synthesizable anisotropic impedance profiles is very general and enables the generation of shaped beams with control of the amplitude, phase, and polarization. The method has been extended toward the generation of multiple-beam and multi - functional operation. The obtained designs are translated into the distribution of small patches based on an efficient periodic method of moments (MOM) solver. Numerical and experimental validations are provided, showing the effectiveness of the meth- od. Short- to medium-term perspectives are also summarized
Affiliations

Citations

  • APA
  • Chicago
  • FWB

Bodehou, N., Al Khalifeh, K., Jha, S. N., & Craeye, C. (2022). Direct numerical inversion methods for the design and surface-wave based metasurface antennas: fundamentals, realization and perspectives. IEEE Antennas and Propagation Magazine. Accepted/in-press. https://hdl.handle.net/2078.5/255256 (Original work published 2022)