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Optimize in seconds the performance of the off-the-shelf antenna that you embed in your IoT device!

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

Various LPWAN networks represent a challenge to the IoT device manufacturer

IoT products run on LPWAN (Low-power WAN) networks. One of the challenges for an IoT product manufacturer is that LPWAN lacks a standard on which everyone agrees. There are various service providers with different standards like Weightless, SigFox, LoRa, LTE-Cat M, IEEE P802.11ah, Dash7 Alliance Protocol 1.0, Ingenu RPMA and nWave, to name a few. The frequency band of these standards ranges anywhere between 400 MHz to 915 MHz. This not only represents an economical challenge but a design challenge as well i.e. do I design an IoT product with multiple antennas that can work on all different networks or design the same IoT product with different antennas for different networks?

The other key challenges for an IoT manufacturer include reliability and performance

Antennas react differently to RF environmental conditions, such as the proximity of the user’s head or hand, or nearby object. Behaviour of an antenna on the IoT device may be detuned by hand, body and environmental effects. An IoT device that performs well in free space may not be able to connect to the network when placed on another object (tracker) or a person for example. These factors make it challenging for manufacturers to design an IoT device that provides consistently high performance across all bands and in a wide variety of RF environments.

Receiver sensitivity is crucial to power consumption

There is also receiver sensitivity that needs to be taken into account as the sensitivity has a direct impact on the power consumption. Free space/path loss is the dominant factor that greatly reduces the received power of an IoT device which typically requires long transmission paths. Therefore, IoT receivers should have a very good receiver sensitivity.

The IoT market is extremely price-sensitive so manufacturers generally prefer to quickly and cost-effectively embed off-the-shelf antennas to their IoT devices instead of designing antennas from ground-up.

With RFxpert, in less than one second you can easily:

  • Optimize the off-shelf-antenna embedded in your IoT device for all the different standards
  • Measure and visualize proximity effects
  • Prototype & test new designs, components and forms
  • Review effects of different packing materials & layout changes
  • Verify final product performance in real-time

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

EMSCAN collaborated with a CTIA listed phantom fixture manufacturer, IndexSAR, to provide an OTA Performance bench top test fixture with phantom head, hand and wrist. This dedicated test fixture is used with the RFX2 scanner and performs fast accurate measurements with excellent correlation to a full compliant OTA test system (Note to SA: I am going to use wrist photos in this section).

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

RFxpert measures the characteristics of an 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:

Efficiency comparison in the range of 1700 – 2200 MHz done by a reputable cell phone manufacturer

TRP comparison of a WCDMA device for Bands 5 & 6 done by another reputable cell phone manufacturer

Base Station Antenna comparison at 1950 MHz done by a cell phone service provider

 

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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