Research Article

Bandwidth Extension of a Printed Square Monopole Antenna Loaded with Periodic Parallel-Plate Lines

Figure 10

Measured copolarization and cross-polarization of proposed antenna at different frequencies: (a) 2.4 GHz; (b) 3.0 GHz; and (c) 3.5 GHz (left: -plane; right: -plane).
(a)
(b)
(c)