Rapid pre-compliant OTA performance bench top test system
RFxpert is the fastest OTA performance test system for mobile devices.
Are you under time-to-market pressure because of the countless number of lengthy measurements per mobile device in inaccessible anechoic chambers?
Most leading mobile device manufacturers and wireless service providers are already using RFxpert for quick and cost effective total radiated power (TRP) measurements.
RFxpert is the only low-cost, bench-top solution for providing real-time analysis and optimization of your antennae designs.
CTIA mandates OTA performance (total radiated power: TRP) measurements of mobile devices using a phantom head and hand. EMSCAN collaborated with a CTIA listed phantom fixture manufacturer, IndexSAR, to provide an OTA Performance bench top test fixture with phantom head+hand. This dedicated test fixture used with the RFX2 scanner performs fast accurate measurements with excellent correlation to a full compliant OTA test system.
Mobile devices placed in the OTA head+hand kit can be positioned repeatedly against the RFX2 to get TRP measurements in seconds. The kit can be set to any angular position if required. Unrivalled speed of the RFX2 gives designers the freedom to make rapid prototypes and explore new designs, materials and forms. Optimizing complex embedded antenna designs at the desktop without wasting time and money or waiting in congested anechoic chamber lines. When used in manufacturing in end of line testing, it can give confidence that the final assembled product conforms to the user’s specifications.
With RFxpert, in less than one second you can easily:
- Analyze your embedded antenna designs.
- Prototype & test new designs, components and forms.
- Test & optimize several iterative embedded antenna designs.
- Review effects of different packaging materials & layout changes.
- Verify final product performance in real-time
…all for a fraction of the cost of an anechoic chamber.
How accurate is the result compared to a CTIA anechoic chamber?
Tests in compliant CTIA chambers have shown that results from a half+head and a full head show good correlation. A +/- 2 dB accuracy with two rotated half-head measurements compared to a CTIA chamber should be possible, given typical OTA measurement uncertainties.
The measurement results below are typical using the RFX2 / IXS-020 and comparing results measured in an ETS AMS-8700 CTIA compliant OTA system. More extensive test results are available on demand.
The results on the RFX2 include a frequency dependent offset. The plots are displayed with the RFX2 values with this offset applied. This offset is -3.6 dB for all GSM850 measurements and +4.0 dB for all GSM1900 measurements. In a given band it is constant for all channels and for most phone models.