Channel matrix characterization in MIMO scenario through impedance modulation
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In this paper a new measurement setup to obtain the characteristic channel matrix of a MIMO radio system is presented using a small and non intrusive device able to characterize two antennas and therefore obtaining the characteristic channel matrix of a MIMO radio system of Nx2 antennas without using a receiver for each port. The extension to a system of more than two output elements can be easily achieved increasing the complexity of the switching device. To validate the new methodology presented here a 2x2 MIMO channel matrix has been characterized comparing the singular value distribution obtained with a traditional measurement procedure.
CitacióMonsalve, B.; Romeu, J.; Blanch, S. Channel matrix characterization in MIMO scenario through impedance modulation. A: IEEE International Symposium on Antennas and Propagation. "2010 IEEE International Symposium on Antennas and Propagation and CNC/USNC/URSI Radio Science Meeting". 2010, p. 1-4.