摘要
A wideband-generalized pattern multiplication approach to evaluate the performance of an optical beamform- ing-based wideband antenna array is proposed and experimentally demonstrated, which enables the far-field measurement of a large wideband array with a small anechoic chamber. Because the optimum reception of a wideband microwave signal is highly related to the time-domain distortions of the beamforming system, a correlation-receiver-based radiation pattern is applied to take the fidelity of the wideband signals into account. A four-element optical beamforming system is built to verify the feasibility of the proposed method. The results achieved by the DrODosed method agree well with the conventional direct measurements.
A wideband-generalized pattern multiplication approach to evaluate the performance of an optical beamform- ing-based wideband antenna array is proposed and experimentally demonstrated, which enables the far-field measurement of a large wideband array with a small anechoic chamber. Because the optimum reception of a wideband microwave signal is highly related to the time-domain distortions of the beamforming system, a correlation-receiver-based radiation pattern is applied to take the fidelity of the wideband signals into account. A four-element optical beamforming system is built to verify the feasibility of the proposed method. The results achieved by the DrODosed method agree well with the conventional direct measurements.
基金
supported in part by the NSFC Program(Nos.61422108 and 61527820)
the Jiangsu Provincial Program for High-level Talents in Six Areas(No.DZXX-034)
the“333 Project”of Jiangsu Province(BRA2015343)
the Fundamental Research Funds for the Central Universities
