In this paper, 1D sampling which exploits the symmetry of the phaseless planar near-field distributions of antenna is presented to reduce sampling points and the measuring time of the phase retrieval method. Not only the accuracy of the estimation but also the tolerance of probe-positioning error of sampling points are necessary in high frequency measurements because of its short wavelength. Using 1D sampling including the probe-positioning error, the far-field pattern is estimated with sufficiently small error in the simulation. In the measurement, the far-field can also be estimated from 1D near-field including probe-positioning error.
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