Reduction of Truncation Errors in Planar, Cylindrical, and Partial Spherical Near-Field Antenna Measurements

Figure 3

Spectral reliable regions: (a) PNF measurement; (b) CNF measurement; (c) SNF measurement with polar truncation; (d) SNF measurement with spherical ring truncation; (e) SNF measurement with azimuthal truncation; (f) SNF measurement with sectorial truncation.

(a)

(b)

(c)

(d)

(e)

(f)