Research Article

Design and Modeling of New UWB Metamaterial Planar Cavity Antennas with Shrinking of the Physical Size for Modern Transceivers

Figure 12

Simulated three-dimensional (3D) radiation gain patterns of the proposed antenna composed of four unit cells in elevation plane ( ) and at operation frequencies: (a) at 4.3 GHz, (b) at 7 GHz, (c) at 17 GHz, (d) at 18 GHz.
562538.fig.0012a
(a)
562538.fig.0012b
(b)
562538.fig.0012c
(c)
562538.fig.0012d
(d)