Full-Wave Verification of an Electromagnetic Inversion Metasurface Design Method

Abstract

This paper summarizes, extends, and synthetically evaluates a method for metasurface design which uses electromagnetic inversion. After the inversion algorithm determines a homogenized surface susceptibility model to implement a desired power pattern, the susceptibility distribution is converted to a three-layer admittance sheet topology. Lastly, full-wave commercial software is used to simulate and verify the performance of a metasurface designed and implemented using the proposed procedure.

Metasurface Design Using Electromagnetic Inversion

“…We then simulate the designed metasurface in ANSYS HFSS using the method described in [106]. This technique implements each unit cell using a three-layer admittance sheet topology [107], using the conversion between susceptibilities and admittances explicitly stated in [106]. The unit cells are then modelled in HFSS using three impedance boundary conditions, between which exist two substrate layers.…”

“…In order to simulate the metasurfaces using commercial software, we employ a three-layer admittance sheet topology [107,100,118,110] for each unit cell as shown in Figure 5.4. The conversion from the susceptibility profiles to the admittance sheet model is performed using the procedure in [106]. At a given unit cell, we start by rearranging (5.33) into the ABCD representation of a two-port network as…”