Improved Handset Antenna Performance via an Electrically Extended Ground Plane

Table 1

Percentage performance improvement at 900 MHz.

Model	Increase in efficiency	Increase in bandwidth	Reduction in SAR
I	4.25	28.10	3.12
II	5.06	22.16	10.45
III	2.68	28.13	8.78
IV	2.63	14.81	11.99
V	7.70	56.44	8.11
VI	5.60	34.17	0.33
VII	4.15	44.77	5.50
VIII	6.15	35.23	9.87