An Ultrawideband Monopole Fractal Antenna with Coplanar Waveguide Feed

Table 3

Comparison with conventional antennas.

Antenna	Impedance bandwidth (GHz)	Peak gain (dBi)	Antenna size	Substrate
Notch UWB antenna [24]	6.5 (without notch); 1.4 (with notch)	3	16×22 mm^2	Rogers; RO4003
Miniaturized UWB monopole [25]	11.5	4.4	20×25 mm^2	FR4
Square octal fractal [26]	11.42	4.18	83 × 41.5 mm^2; (CPW and side ground size only)	FR4
Proposed UWB monopole antenna	7	5.2	20×25 mm^2	FR4