Abstract: Systems and methods for emulating a channel for wireless communications between a transmit (TX) system-under-test (SUT) and a receive (RX) SUT. The TX and RX SUTs include integrated antenna arrays for transmitting and receiving wireless signals. For a plurality of paths of the emulated channel, and for each antenna element of the TX SUT, a respective phase shift and gain modification is applied to a wireless signals transmitted by the respective antenna element. The phase shifts and gain modifications emulate path length differences between different antenna elements. The signals for each antenna element are summed, and a path-specific modification is applied to each aggregate signal for each path. For each RX antenna element, phase shift and gain modifications are applied to emulate path-length differences for the RX antenna elements, the resultant signals are summed for each path, and the emulated wireless signals are output to the RX antenna elements.

Abstract: Systems and methods for emulating a channel for wireless communications between a transmit (TX) system-under-test (SUT) and a receive (RX) SUT. The TX and RX SUTs include integrated antenna arrays for transmitting and receiving wireless signals. For a plurality of paths of the emulated channel, and for each antenna element of the TX SUT, a respective phase shift and gain modification is applied to a wireless signals transmitted by the respective antenna element. The phase shifts and gain modifications emulate path length differences between different antenna elements. The signals for each antenna element are summed, and a path-specific modification is applied to each aggregate signal for each path. For each RX antenna element, phase shift and gain modifications are applied to emulate path-length differences for the RX antenna elements, the resultant signals are summed for each path, and the emulated wireless signals are output to the RX antenna elements.