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Near-field MIMO wireless transmit power measurement test systems, structures, and processes

  • US 8,824,588 B2
  • Filed: 12/10/2012
  • Issued: 09/02/2014
  • Est. Priority Date: 12/10/2012
  • Status: Active Grant
First Claim
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1. A process, comprising the steps of:

  • positioning a multiple input-multiple output (MIMO) device with respect to at least one test antenna, wherein the MIMO device comprises a plurality of transmission (Tx) paths, wherein each of the plurality of Tx paths has a corresponding MIMO antenna associated therewith, and wherein the MIMO device is positioned such that the MIMO antennas are located proximate the at least one test antenna for near field testing;

    powering the MIMO device;

    providing a pulse train signal to the MIMO device, wherein the pulse train signal comprises a corresponding pulse for each of the Tx paths; and

    for each of the plurality of Tx paths, sending an uplink signal associated with the corresponding pulse from the MIMO antenna that corresponds to the currently tested Tx path, receiving the uplink signal from the corresponding MIMO antenna through the at least one test antenna, measuring the power of the received uplink signal, andproviding an output based on the measured power for the currently tested Tx path.

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