Fig. 7
From: Spatial localisation and sensing in two dimensions via metasurfaces
Variation of absolute value of analytical input admittance, \(|\Delta Y_{11}|\) with frequency, f, and location for different vertical locations (\(h = 1, \ 2, \ 3\) mm) and different feed points (central - 3d, side - 3a and asymmetrical - 1b).
