Patent ID: 8330661
Filing Date: 2012-12-11
Classification: G01R

Abstract:
1. A system for measuring an antenna radiation pattern in a Fresnel region based on a phi-variation method, comprising: a rotating means for changing angles of a reference antenna and a target antenna; a vector network analyzing means for obtaining radiation pattern data in accordance with transmission/reception radio frequency (RF) signals between the reference antenna and the target antenna, wherein the obtained radiation pattern comprises spherical waves; a measurement means for calculating a far-field radiation pattern of a far-field region based on the radiation pattern data received from the vector network analyzing means; and a control means for controlling the rotating means according to a measurement angle transmitted from the measurement means, wherein field values of the far-field radiation pattern of the far-field region are acquired by multiplying field values of the Fresnel region by Fourier coefficients and summing multiplied field values.