Multiband Planar Inverted-F Antenna with Independent Operating Bands Control for Mobile Handset Applications

Figure 17

SAR variation in terms of the distance between the PIFA and the head: (a) at 790 MHz, (b) at 1870 MHz, (c) at 2550 MHz, and (d) at 3400 MHz.

(a)

(b)

(c)

(d)