The SG 3000 from Microwave Vision Group is a Multi-Probe System for full-scale vehicle antenna measurements and OTA testing. It supports near-field/spherical technology testing from 70 MHz to 10 GHz. This test system can support 5G FR1 NSA and SA and C-V2X OTA measurements for automobiles in compliance with the 5GAA Vehicular Antenna Test Methodology (VATM) Standard, as well as the emerging UWB technology.
The system configuration can be adapted to meet specific needs. Different arch sizes can be designed, and the structure can be fixed (F) or mobile (M), that allows it to be either permanently installed or moved into an existing anechoic chamber. The rotation of the DUT is controlled by a high precision positioning system enabling discrete and/or continuous on-the-fly measurements. It supports a maximum DUT size of 2.4 x 6.0 m and a DUT weight of up to 3500 Kg.
The SG 3000 uses analog RF signal generators to emit EM waves from the probe array to the Antenna Under Test or vice versa. The amplification unit has RF amplifiers for each of the RX and TX channels. For OTA measurements, tests are performed through the radio communication tester. The amplification units amplify the signal on transmission/reception channels to achieve optimum dynamic range. The transfer switching unit is used to switch between the emission and reception modes of the DUT. It is ideal for use in vehicle testing applications.
In addition to measurements of antenna radiation patterns and typical S-parameters, the SG 3000 is equipped to perform OTA tests that will provide analysis and results for engineers finalizing prototypes to meet automotive connectivity requirements such as those being defined by the 5GAA.
