Numerical Investigation of the System-Matrix Method for Higher-Order Probe Correction in Spherical Near-Field Antenna Measurements

Figure 5

Error plots of the spherical expansion coefficients computed from the higher-order probe output with 𝜓=2^∘ without truncating the 𝐌 matrix. (a) is ℰ_𝐴⁽⁴⁶⁾_𝑛𝑚 and (b) is ℰ_𝐵⁽⁴⁶⁾_𝑛𝑚.

(a)

(b)