ETS-LINDGREN’S MODEL AMS-8700 MIMO OTA TEST SYSTEM allows repeatable measurement of radiated performance of wireless devices in a simulated multi-path environment. The system acts as an RF environment simulator that can generate spatial field structures similar to those seen in a wide range of real-world scenarios.

The system consists of a dual polarized antenna array in an absorber lined fully-anechoic chamber connected to technology specific communication test equipment through a spatial channel emulator. The anechoic chamber provides isolation from interference and reflections in the real-world environment and eliminates unwanted reflections within the test environment. The antenna array transmits downlink signals from a range of angles of arrival (AoA) simulating the scattered reflections seen by a wireless device in normal operation.

ETS-Lindgren’s EMQuest EMQ-108 MIMO OTA Test Option adds a suite of test capabilities to the EMQuest EMQ-100 Antenna Measurement Software. These include specialized tests for evaluating the throughput of a wireless device in the simulated environment, as well as R&D tests to allow evaluation of antenna correlation, along with system calibration and validation tests.

The baseline system configuration provides a simulated environment suitable for testing typical wireless handsets. Optional configurations are available to increase the uncorrelated field volume. Optional system components add support for antenna pattern measurement and traditional SISO Total Radiated Power (TRP) and Total Isotropic Sensitivity (TIS) testing of wireless devices. An optional theta axis array and high speed switch matrix allows for high speed* antenna pattern measurement and TRP/TIS testing.