Electronic Products & Technology

Test solution serves WLAN 2×2 MIMO stations in line with IEEE 802.11ax standard

Stephen Law   

Electronics Test & Measurement Wireless IEEE IEEE tester tester wireless wireless WLAN WLAN

ROHDE & SCHWARZ CMW270 wireless connectivity tester allows developers to test the RF characteristics of WLAN 2×2 MIMO stations in line with the IEEE 802.11ax standard. Multiple input multiple output (MIMO) is a multi-antenna method that uses multipath propagation to boost data rates in wireless communications. The transmit and receive antennas must be spatially separated from each other. The compact design of mobile devices such as smartphones is a limiting factor. Devices can hold at most two transmit and two receive antennas, which limits transmission to 2×2 MIMO.

In signaling mode, unit emulates a WLAN 11ax access point (AP) to which the DUT, a WLAN station, is connected in normal mode. Unlike commonly used non-signaling mode, tests and measurements in signaling mode have the advantage that the user performs them under realistic conditions and does not need wired remote control with device-specific control software for the DUT.

Product is suitable for more than just signaling tests in line with the IEEE 802.11a/b/g/n/ac/ax WLAN standards. It can also comprehensively and simultaneously test Bluetooth® devices, for example. 


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