A Compact Printed Quadruple Band-Notched UWB Antenna

Figure 2

VSWR of the antenna with different lengths of slots and strips (𝐶₁=13 mm, 𝐶₂=8 mm, and 𝑟_𝑤=0.5 mm).

(a)  The length of the slot (L_cut1) changes with r_slot = 5.1 mm

(b) The length of the slot (L_cut2) changes with r_strip = 8 mm

(c) The radius of the slot (r_slot) changes with L_cut = 8 mm

(d) The position of the slot (md_slot) changes with r_slot = 5.1 mm and L_cut = 5.7 mm