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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.


TRP comparison of a reputable smartphone between 1850 – 1910 MHz


Far-field pattern of the same reputable smartphone generated by RFX2


Why RFxpert Is Right For You

You want to avoid the delays and set-up needed for far-field measurements in a chamber.

RFxpert not only require low CAPEX and zero OPEX, they also deliver significant ROI advantages.

You can execute real-time analysis of your design, test multiple design iterations and optimize complex designs on your lab-bench in seconds at each stage of the design process.

Key Benefits

Test results in seconds
Easy to use
Compact and tabletop
Significant time-to-market acceleration
Dramatic increase in production
Substantial cost reduction

Read More

Are you under time-to-market pressure because of the countless number of lengthy measurements in inaccessible anechoic chambers?

Tired of losing valuable project time waiting in line to test your designs in expensive anechoic chambers?

Do you want to test your design and performance quickly to accelerate project completion and delivery?

Are you under budget pressures?

Why did your product fail the compliance test in an anechoic chamber? Why didn’t you see this coming?

With RFxpert, in seconds and a fraction of an anechoic chamber cost you can easily:

  • Analyze your embedded antenna and wireless device designs
  • Prototype / test new designs, components, and forms
  • Iteratively test and optimize embedded antenna designs
  • Perform highly repeatable and rapid over-the-air wireless device measurements
  • Verify final product performance in real-time
  • Gain immediate insight into the root causes of performance issues by analyzing the near-field results

…all for a fraction of the cost of an anechoic chamber.

  •   How does RFxpert work?

    rfxpert-how-does-it-workRFxpert measures the magnetic field (H-Field) in two orthogonal directions using H-field probes and projects this data to the far-field using the planar aperture distribution to angular spectrum transformation or plane wave spectrum (PWS) transformation.

    A second custom algorithm then adjusts the far-field projection to eliminate the predictable coupling effects of the measurement array of probes. Probe response compensation is also taken into consideration in this algorithm.

    EMSCAN meticulously developed this custom algorithm through comprehensive and rigorous R&D efforts to get the most accurate test results.

Companies Who Trust RFxpert Products
What Our Customers Are Saying
“The addition of the RFX2 system to our RF design and test capabilities has enabled us to deliver better antenna and RF designs to our clients, and ultimately to our clients’ users.”
Charles Manry, Senior RF Engineer, PhD
Synapse Product Development
“I prefer to use the RFxpert for my antenna design projects instead of simulation software. In a couple of hours, I can model a real antenna out of copper and test it with the RFxpert in the antenna’s intended operating environment. I then use the proven design, based on the RFxpert analysis, to prepare a CAD drawing and send it off to manufacturing for prototyping.”
Jorge I. Ortiz
RF Network & Antenna Engineer, Independent Consultant at Mueller Systems Ocala, Florida Area
“We're impressed with the accuracy of the RFX scanner compared to our external lab measurements for TRP.”
Jeremy Monroe
MoJoose Inc
“We wanted to extend the distance between the hand-held transmitter and the aerial device. Initially we thought that we had to add an additional power amplifier stage. The RFxpert showed us that the real problem was something else: the coax was radiating as much as the antenna. By using better coax and a different coupling method from the final power amplifier stage to the antenna, we were able to transfer more power to the antenna. We managed this significant increase by almost zero cost to the design.”
Director of Engineering
Consumer Electronics Manufacturer
“Designers now evaluate designs in real-time vs. waiting at the back of the queue with $100M+ projects in front”
RF Design Engineer
Leading Military Subcontractor

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