Figure 2
From: An octa-band planar monopole antenna for portable communication devices
Four evolution stages of the antenna design (a) Ant-1, (b) Ant-2, (c) Ant-3, (d) the proposed antenna.
Figure 2 | Scientific Reports
From: An octa-band planar monopole antenna for portable communication devices
Four evolution stages of the antenna design (a) Ant-1, (b) Ant-2, (c) Ant-3, (d) the proposed antenna.
