This system has been designed for the development and validation of mmWave systems, including 5G communications, R&D projects within the telecommunications industry, university research, or other mobile communications or mmWave device testing.
This new modular and mobile measurement solution provides a protected environment to ensure stable measurements across a wide frequency range and requires no frequency conversion to guarantee accuracy and phase stability. It is also easy to install and relocate in both new laboratory or production environments and existing ones.
The ETH-MMW-1000 Millimeter Measurement System consists of a fully anechoic aluminum enclosure mounted on a wheeled, mobile chassis, providing both portability and stability during measurements. It is equipped with sliding doors for easy access to the system's interior and the device under test (DUT), as well as a distributed axis positioning system comprising a height-adjustable azimuth mast rotator that rotates the DUT about the Phi axis and a Theta ring positioner that raises the measurement cones around the DUT.
The system is designed to accommodate devices of varying sizes, shapes, and weights and features several mechanical interfaces for the mast. It also includes a 300 mm diameter hemisphere with dedicated notches that allow the user to easily position devices such as tablets and phones horizontally or vertically. It can be used to test both passive and active antennas and is compatible with most vector network analyzers (VNAs), spectrum analyzers, and communications analyzers manufactured by Keysight Technologies, Rohde & Schwarz, and Anritsu.
This anechoic chamber employs far-field spherical technology with numerous measurement capabilities, including sampling, gain, directivity, efficiency, beamwidth, cross-polar discrimination, 3D radiation pattern, radiation pattern in any polarization, effective isotropic radiated power (EIRP), total radiated power (TRP), effective isotropic sensitivity (EIS), and total isotropic sensitivity (TIS). Each measurement frequency has a dedicated path associated with a common amplification stage, but these are combinations of several mmWave frequency bands (18–26.5 GHz, 26.5–40 GHz, 33–50 GHz, 40–60 GHz, 50–67 GHz, and 50–75 GHz). The number of measurement probes can also be optimized to accelerate measurement time. The system requires a minimum of two measurement probes to cover the horizontal and vertical polarizations but can accommodate up to 12 probes on the ring positioner.
The mobile millimeter measurement system allows measurements to be taken on devices up to 45 cm in size and 10 kg in weight.
