Rohde & Schwarz shows new test solution for radiation measurements on 5G devices

Compact antenna test ranges (CATR) are the solution of choice to design and verify the upcoming 5G smartphones, tablets and notebooks that operate in the new frequency range 2 (FR2: 24.250 GHz to 52.600 GHz).

CATR test systems employ indirect far field technology (IFF) and have been approved by 3GPP even for certified testing of this new 5G mobile device category, where the use of active antenna arrays is becoming the default design principle. Active antenna arrays integrate antennas, power amplifiers and phase shifters in a single, PCB-mountable package, providing active beam steering for the first time in cellular devices.

To provide a reliable communications link, multiple of these active antenna arrays are expected to be distributed within a mobile device (e.g. at all edges of a smartphone’s frame), and they will be switched on and off dynamically within milliseconds in a real-life mobile situation. Therefore, it is critical that the measurement zone is large enough to host the entire mobile device while the device is being rotated in order to measure its performance from all directions.

Premiere of test solution at 40th AMTA meeting

Rohde & Schwarz addresses this testing challenge with an innovative test solution. It offers an unrivaled measurement zone – the quiet zone – of up to 20 cm / 7.8” in diameter within a benchtop footprint of less than 0.8 m2 / 8.6 ft2, with the capability of automatically rotating the device under test (DUT) during the measurement.

Rohde & Schwarz presented the new test system for the first time to the public at the 40th AMTA meeting in Williamsburg, VA, USA from November 4th to 9th, 2018.

A gold-coated reflector and an ultra-wideband feed antenna retain excellent quiet zone uniformity with respect to both amplitude and phase, allowing RF engineers to conduct measurements all the way from 20 GHz to 87 GHz. The dual-polarised feed antenna measures horizontal and vertical polarisation in one go, cutting test times in half.

Together with a high-precision, full 360 degree 2D positioner, any radiated performance measurement can be recorded at a spatial resolution of better than 0.1 degrees, ensuring excellent accuracy and repeatability of test results. Test automation is available with the R&S CONTEST sequencer software or any third-party test equipment by using the extensive API library for C / C++ / C# / VB.NET / MATLAB / Python and NI LabVIEW.

The new CATR test system from Rohde & Schwarz will be available starting December 2018.

Comment on this article below or via Twitter: @VanillaPlus OR @jcvplus

RECENT ARTICLES

Connectbase expands baltic connectivity with Bitė partnership

Posted on: March 28, 2024

Connectbase has announced the addition of Bitė to its ecosystem. This partnership marks a step forward in enhancing connectivity options within the Baltic region, providing a link between local and

Read more

IOT Solutions World Congress 2024 connects semiconductor chips to industry

Posted on: March 27, 2024

Essential to manufacture computers, smartphones, cars, refrigerators or any electronic device, semiconductors are critical elements in the implementation of the Internet of Things. For this reason, IOT Solutions World Congress

Read more