Figure 4
From: Electromagnetic time-harmonic and static field polygonal rotator with homogeneous materials
(a,d) Contour of the magnetic potential in and near rotator when the magnetic field is imposed from \(\hat{x}\) direction and \(\frac{\sqrt{2}}{2}\hat{x}+\frac{\sqrt{2}}{2}\hat{y}\) direction, respectively. (b,e) Contour of the magnetic potential in and near concentrator when the magnetic field is imposed from \(\hat{x}\) direction and \(\frac{\sqrt{2}}{2}\hat{x}+\frac{\sqrt{2}}{2}\hat{y}\) direction, respectively. (c,f) Contour of the magnetic potential in and near sparse device when the magnetic field is imposed from \(\hat{x}\) direction and \(\frac{\sqrt{2}}{2}\hat{x}+\frac{\sqrt{2}}{2}\hat{y}\) direction, respectively. All these devices above are composed of only one anisotropic material.
