Peak Performance in Spatial Multiplexing Mode
R&S
®
AMS32-K31
26
User Manual 1175.6678.02 ─ 01
3.1.2.3
Measurement Settings
The "Measurement Settings" settings are analogous to the single-antenna test case; see
chapter 2.1.2.3, "Measurement Settings"
3.1.2.4
Fading Settings
The "Fading Settings" settings are analogous to the single-antenna test case; see
ter 2.1.2.4, "Fading Settings"
3.1.2.5
Loop Settings
In the "Loop Settings" dialog, you can define the measured polarizations, radio channels,
and angular positions ("Azimuth", "Elevation"). The MIMO OTA tests will be performed
at all selected parameter combinations, however, both antennas are positioned at a
common "Azimuth" angle, and their elevations (polar angles) are coupled as described
below. A restricted number of measured "Radio Channels" and angles will keep test times
and result lists short.
Access:
"Loop Settings" button in the "OTA Auto Test Template" dialog; see
.
The test setup for the dual-antenna MIMO OTA test provides four possible polarization
combinations (H
–
H, H
–
V, V
–
H, V
–
V). According to the test case specification, all
four combinations must be measured as shown above.
To keep the geometry simple and reduce test times, the angular positions of the two test
antennas are coupled as follows:
●
Both antennas are at the same "Azimuth" angle, i.e. their positions are on a circle
centered upon the EUT position.
Configuration
