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Test Base Station Antennas on Your Lab Bench in Minutes

RFxpert is the world’s only real-time, compact, bench-top antenna measurement device.

Tired of budget and time pressures to test a base station antenna in a specialized anechoic chamber?

As a mobile operator you want to test each and every base station antenna with its possible mechanical adjustment to avoid additional costs due to poor performance of the base station antenna after installation.

As a developer and manufacturer of base stations antennas, you want to test their design and performance quickly to accelerate project completion and delivery.

And you all have time and budget pressures.

With RFX2, in minutes you can easily:

  • Measure your base station antenna performance.
  • Prototype & test new designs, components and forms.
  • Review effects of different packaging materials & layout changes.

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

How do I test a base station antenna on RFX2?

The base station antenna was suspended above the RFX2 scanner surface at 115 mm to minimize any interaction between the scanner and the antenna under test. After each scan, which took less than two seconds, the scanner was moved to the next position in 40 cm increments until the length of the antenna had been completed. Total measurement and post-processing time required about 30 minutes.

bsa_position1

bsa_position2

To minimize the impact on the base station emission of moving the scanner to each subsequent position, an absorber material is used to cover the scanner. During the test, the S11 of the antenna with a network analyzer was monitored while scanner was manually moved to the next position. S11 showed no meaningful shift in the return loss when the scanner was moved.

bsa_rfx2

Very-near-field results are then processed in seconds to provide far-field results.

Maximum dimension of an antenna that can be measured with this technique is 1.12 m x 2.32 m.

How accurate is the RFX2 result compared to a CTIA anechoic chamber?

RFxpert measures the characteristics of a smaller antenna in one second compared to hours (including the set-up time) in an anechoic chamber. RFxpert accuracy is +/- 1.5dB.

Below are comparative test results of the base station antenna at 700 MHz and 1950 MHz.

The Phi = 0° cut is the vertical cut and the Phi = 90° is the horizontal cut.

700mhz_cut

Radiation Pattern vs. Manufacturer’s Data at 700 MHz

1950mhz_cut

Radiation Pattern vs. Manufacturer’s Data at 1950 MHz

What is the advantage of near-field scan?

A base station antenna is composed of multiple elements. If one of the elements isn’t working as expected or is faulty, itcould be quite difficult to identify it with far-field data. Because each individual element is isolated from each other, it is a lot easier to see the variations in the very-near-field. You can easily correlate very-near-field results with the elements on the base station antenna and isolate fields for each individual element.

The figure below displays the combined results of the magnetic field (H-field) at 700 MHz using very-near-field measurements. Each image below respectively displays Hx Amplitude, Hy Amplitude, Hx Phase, and Hy Phase.

700mhz_nf

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
“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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