What is the R&S ATS 1800C OTA Chamber & What Does It Do?

The R&S®ATS1800C is a state of the art CATR Over The Air (OTA) test chamber optimized for 5G mmWave and 6G research. Featuring a massive 40 cm quiet zone within an ultra compact footprint, it delivers highly accurate 3D radiation patterns and 3GPP compliance testing for frequencies ranging from 12 GHz up to 170 GHz.

Key features of R&S ATS1800C

• 3gpp compliant OTA chamber for 5G NR mmwave signals
• Up to 170 GHz frequency supported
• Up to 40 cm quiet zone size supported
• Automatic feed switcher for 6 GHz to 110 GHz OOB (Out of Band) testing
• Suitable for extreme temperature condition testing

Advantages of R&S ATS1800C

Following are some of the benefits of ATS1800C.

• Offers space and cost efficiency
• Offers unmatched measurement reliability with support of >90 dB shielding effectiveness.
• can be upgraded with side chamber extensions to form a multi-reflector setup.
• Offers accelerated test times.

Typical Applications

• 3GPP Conformance and Regulatory Testing: Fully compliant with 3GPP specifications for 5G FR2 in-band, out-of-band, and spurious emission testing.
• Antenna Characterization: Active and passive beamforming characterization, including Equivalent Isotropically Radiated Power (EIRP) and Total Radiated Power (TRP) measurements for smartphones and IoT modules.
• Radio Resource Management (RRM): When expanded with side chambers, it evaluates how devices handle multiple spatial streams and beam switching.
• SATCOM and Non Terrestrial Networks (NTN): Characterizing electrically large satellite terminal antenna arrays (like those used in Low Earth Orbit constellations) under realistic OTA conditions.

Conclusion

As millimeter wave technology pushes the boundaries of wireless device design, traditional conductive testing is no longer viable. The R&S® ATS1800C CATR test chamber provides an elegant, highly engineered solution to this problem.

References

• Check-out datasheet, click ATS1800C Brochure