Research Article

Design of an Aperture-Coupled Frequency-Reconfigurable Microstrip Stacked Array Antenna for LTE and WiMAX Applications

Figure 4

Simulated results of , , , , and ā€‰(dB) versus frequency (GHz) for the equivalent switching circuit when all the PIN diode switches are in (a) ON mode and (b) OFF mode.
154518.fig.004a
(a)
154518.fig.004b
(b)