Rectangular Ring Antenna Excited by Circular Disc Monopole for WiMAX System

Table 1

The optimal parametric values of the proposed antenna.

Parameters	Physical size	Electrical size ()
	16.0 cm	1.2307
	7.2 cm	0.5538
	3.4 cm	0.2615
	2.6 cm	0.2000
	2.4 cm	0.1846
	1.1 cm	0.0846
	2.0 mm	0.0153
	1.0 mm