OTA Testing for Massive MIMO Devices Using Cascaded APM Networks and Channel Emulators

Table 1

Emulation deviations for different cluster settings.

Cluster settings				Angular spectrum with APM		Angular spectrum with switch
AoA (°)	EoA (°)	ASA (°)	ESA (°)	(dB)	r.m.s (dB)	(dB)	r.m.s (dB)
−20	10	10	3	0.0031	−5.2557	0.0438	−3.7885
−20	10	5	3	0.00017	−15.2405	0.00034	−9.1467
−20	10	2	3	0.0017	−17.1357	0.002	−14.2699
5	−5	10	3	0.0030	−14.5862	0.0585	−3.3436
5	−5	5	3	0.00039	−26.9030	0.0069	−6.1667
5	−5	2	3	0.00085	−22.3349	0.0019	−14.0239
10	−5	10	3	0.0027	−11.5519	0.1405	−3.9020
10	−5	5	3	0.00043	−26.5943	0.00071	−8.9643
10	−5	2	3	0.00082	−22.5181	0.0019	−14.0001