To be more precise, one needs N<sub>x</sub> x N<sub>y</sub> points to scan the whole area, where N_x=D<sub>XP</sub>/âX and N_Y=D<sub>YP</sub>/âY. For instance, 4624 points (68 x 68) are needed in order to scan a 34 mm x 34 mm Patch Antenna with resolution of 0.5 mm (500 μm). The effects of the Step Size (scan resolution) and Probe Height on the 2D Amplitude near field maps for 2.349 GHz Patch Antenna are shown in Figure 4.8.
<center>[[Image:neoscanfig_4_8.png|thumb|center|600px530px|<i><b>Figure 4.8</b>: The effects of the Step Size (scan resolution) and Probe Height on the 2D Amplitude near field maps for 2.349 GHz Patch Antenna.</i>]]</center>
To set scan parameters, press âScan Settingsâ tab in [[NeoScan]] Mapping Utility program (Figure 4.9).