Design of Miniaturized Multiband Filters Using Zero Order Resonators for WLAN Applications

Table 2

Dimensions of narrow-band filter designed by the proposed method.

(a) Dimensions of first unit cell

Values before full wave optimization (mm)			Values after full wave optimization (mm)
= 0.3	= 1.00	= 0.10	= 0.43	= 1.00	= 0.10
gap = 0.588	= 0.218	= 2.65	gap = 0.56	= 0.25	= 2.70
= 4.226	= 1.20	= 0.50	= 3.44	= 1.2	= 0.80
= 1.17	= 0.20	= 0.00	= 1.33	= 0.20	= 0.00

(b) Dimensions of second unit cell

Values before full wave optimization (mm)			Values after full wave optimization (mm)
= 0.31	= 1.05	= 0.10	= 0.52	= 1.00	= 0.10
gap = 0.69	= 0.218	= 2.65	gap = 0.7	= 0.25	= 2.70
= 3.59	= 1.10	= 0.70	= 3.47	= 0.92	= 0.70
= 1.33	= 0.20	= 0.00	= 1.75	= 0.20	= 0.00