Millimeter-Wave Implementation of Phased Array Emulation from Wideband Load-Pull Envelope Measurements

A measurement-based emulation procedure for phased arrays is implemented at millimeter-wave frequencies. By exploiting wideband active load-pull, it allows for the evaluation of the loading conditions and linearity performance of the power amplifier (PA) a so perated in the array, without the need to manufacture the array itself. The technique is validated by emulating an ideal 1x4 linear array with variable coupling and an EM-simulated 2x2 patch array for an off-the-shelf PA.