Download Center

CMQ500

18-Oct-2021

Rohde & Schwarz announced today the next breakthrough in 5G data performance: With support of Qualcomm Technologies, Inc., Rohde & Schwarz has validated 10 Gbps end-to-end (E2E) IP data performance using its R&S CMX500 5G radio communication tester platform. The setup was powered by Snapdragon® X65 5G Modem-RF System, the world’s first 3GPP Release 16 modem-RF system with Qualcomm® QTM545 mmWave Antenna Module.

The R&S®CMQ shielding cube is a compact shielding solution for RF parametric testing. The turnkey chambers for direct far field over-the-air (OTA) measurements are ideal for testing antennas, modules and devices throughout the entire lifecycle under comparable measurement conditions: from product design to the production line.

Since antenna characteristics and quality have a major influence on the overall measurement certainty in OTA test systems, selecting the right antenna is critical. The following is an overview of the most common OTA antennas and their key parameters. Contact us for more details.

Calibration and Verification Solution

The UWB (Ultra-Wideband) technology is a short range wide-band radio technology specified for device to device communication operating in unlicensed spectrum. It is an RF positioning technology that enables accurate and secure peer-to-peer ranging between mobile devices with robust resistance to interference while consuming very low energy and coexisting well with other radio communication systems. UWB is used for a variety of different applications, such as asset tracking, secure payment, personal tracker, real time location services and keyless access and start of a vehicle etc. According to ABI Research forecasts, there will be well over 1 billion UWB annual device shipments by 2026. Almost every smart phone shipped in 2026 will support UWB services.Talking about testing aspect of a UWB device, in general two test methodologies can be adopted as other wireless products, either the traditional testing mode (so-called conducted test mode) with wired RF connection between the test measurement equipment and device under test (DUT) or over the air (OTA) test mode in an OTA anechoic chamber. Sometimes, it is not always possible or necessary to perform the tests under conducted mode due to the limiting factors, e.g. cost, space, complexity and direct access to the RF connectors of the product. In this case, OTA testing is then becoming a non-evitable approach. Moreover, OTA testing reflects the usage of DUT in a real condition.In this application note, R&S® OTA test solution covering transmitter (Tx), receiver (Rx) and Time of Flight (ToF) testing in Wireless Automated Testing (WMT) environment is described. The measurement results throughout the whole document are based on NXP Trimension™ NCJ29D5 UWB automotive IC.

12-Apr-2023 | AN-No. 1SL394

13-Oct-2020

As wireless network operators roll out 5G NR in the millimeter wave spectrum, it is critical to ensure continued reliability of E911 calls and accurate determination of location in mobile devices.

Feedthroughs are used to run cables from the outside into a shielded environment such as an RF shielded box or an OTA chamber. This is done to maintain the shielding effectiveness of a given environment and prevent leakage of RF radiation into or out of the chamber.