A Novel Cellular Handset Design for an Enhanced Antenna Performance and a Reduced SAR in the Human Head

Figure 7

The three-dimensional radiation pattern in (V/m) of both handset models in hand close to HR-EFH at cheek position and operating at different frequencies.

(a) Handset model no. 1 at cheek position and operating at 900 MHz

(b) Handset model no. 2 at cheek position and operating at 900 MHz

(c) Handset model no. 1 at cheek position and operating at 1800 MHz

(d) Handset model no. 2 at cheek position and operating at 1800 MHz