Figure 3
From: Thermal spiral inductor using 3D printed shape memory kirigami
Schematics of the proposed thermal spiral planar inductor in its (a) original 2D planar rectangular shape and (b) 3D transformed spiral shape. The simulated (c) inductance and (d) Q-factor of each shape. The simulated (e) total displacement and (f) stress in the original shape. Din, the internal diameter of the inductor (2.9 mm); Dout, the external diameter of the inductor (14.2 mm); n, the outer length and width of the inductor (25.2 mm); h, the height of the air bridge (6 mm); w, the width of the inductor spiral (1.4 mm); g, the width of the surrounding square grid (2.3 mm); Sa, the height of the spiral (12.5 mm); S1–S3, the distances between the inductor lines in the spiral (3.5, 4.5 and 0.5 mm, respectively); a, the angle of transformation (30°).
