Resumo

LLANGA-VARGAS, Aníbal; FERRANDO-BATALLER, Miguel; CABEDO-FABRES, Marta  e  PENAFIEL-OJEDA, Carlos Ramiro. Antenna array system sefined by low-cost software, as a measurement instrument of MIMO, for research and academia. Novasinergia [online]. 2018, vol.1, n.2, pp.83-89.  Epub 01-Jun-2021. ISSN 2631-2654.  https://doi.org/10.37135/unach.ns.001.02.09.

Abstract: In this paper, a method to configure Software Defined Array Antenna has been presented, used to measure the S i1 parameters, and phases from four radio frequency inputs. The system setup, the waveform generating and the signal processing received of the AD9361 integrated circuit of Analog Devices and the Xilinx Zynq-7000 SoC controller, in a computer has been realized. In mode to determine the precision of the signal phase and power for array antenna applications, a 1-to-8 powe divider, and a 180 degree hybrid coupler have been characterized from 0.5 GHz to 6 GHz. Finally, some possibles array antenna synthesis systems applications, beamforming algorithms, and estimation of the signal direction of arrival have been depicted.

Palavras-chave : SDR; array antennas; measurement instrument; MIMO.

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