Research Article

Design of a Multiband Antenna for LTE/GSM/UMTS Band Operation

Figure 2

Simulated return loss characteristics of the proposed antenna for the folded-loop only case (Ref. 1) and for MPIFA without an additional branch line (Ref. 2) case. The dimensions of these reference antennas are shown in Figure 1.
548160.fig.002a
(a)  
548160.fig.002b
(b)