Fig. 1 Geometry of the proposed antenna. L0 = 5 mm, L1 = 6 mm, L2 = 12.4 mm, L3 = 2.8 mm, L4 = 6 mm, L5 = 4.4 mm, L6 = 8.6 mm, W0 = 1.8 mm, W1 =1.6 mm, W2 = 0.3 mm, S1 = 10.3 mm, S2 = 6.2 mm, S3 = 9.8 mm.