Patent ID: 7928906

Claim:
A measurement range adapted to measure an antenna radiation pattern, the measurement range comprising: an antenna under test; one or more spatially separated measurement nodes, each of said measurement nodes comprising one or more measurement antennas; wherein each measurement node antenna has an equalisation unit associated therewith; wherein the position and orientation of the antenna under test with respect to each of the said one or more measurement node antennas is pre-determined; wherein a pre-determined training signal is radiated by the antenna under test and received by at least one of the one or more measurement node antennas, said radiation having a primary direction of propagation, wherein said equalisation units are adapted to (a) compare the received training signal with the pre-determined training signal, (b) determine sets of equaliser coefficients for propagation channels between the antenna under test and each of the one or more measurement node antennas to eliminate or minimise the difference between the received training signal and the pre-determined training signal, and (c) operate as an inverse filter by applying the equaliser coefficients to generate an equalised version of a signal measured at each of the one or more measurement node antennas; and wherein sets of equalisation coefficients for a plurality of orientations and positions between the antenna under test relative to each of the one or more measurement nodes are determined.