(e) (f)
Fig. 2 (a) Configuration of the PIUWA unit. (b) The manufactured PIUWA array. (c) Front view of the unit. (d) Detailed assembly structure of the 3D layer. (e) The PIUWA sample in the microwave chamber. (f) Simulated and measured absorption rate under normal incident at TE mode. *Detailed geometrical parameters are as follows: b=8mm, h=8.3mm, Ll1=2.2mm, Ll2=2.5mm, Ll3=1.8mm, Ll4=3.5mm, Lh=2.8mm, w1=w2=0.5mm, h1=2mm, h2=2.2mm, RL=120Ω, RH=85Ω.
(a)