Del Mar Electronics & Manufacturing Show 2017 San Diego, CA - May 3-4, 2017. Booth #527 between 10:00 am - 5 pm
 

Instant feedback on diverse WiFi antenna design iterations

Wireless or RF mesh network standards like WiFi, Bluetooth and ZigBee are deployed in wireless control and monitoring applications. Some examples of these applications are wireless light switches, smart meters, home entertainment systems, smart home controls, home or building automation, wireless sensor networks, industrial control, embedded sensing, medical data collection, industrial control, environmental monitoring. Many of these WiFi, Bluetooth and Zigbee enabled devices make use of off-the-shelf antennas. Although these antennas are often tested by the manufacturer, this is only done in the context of their standard test boards. As soon as the antenna is brought into the real world and integrated with a new working system, the performance may be affected because of the combination of rapid growth in both wireless sensing and control networks and WiFi based computer networks. So, to avoid interference and RF congestion, RF interference patterns needs to be examined while running this combination. RFxpert allows the designers and developers of these systems to measure these effects at each stage of the integration process.

The effects of nearby PCBs and cabling can be investigated and the positions can be easily optimized. Sometimes changing the location of a nearby ground plane by a fraction of an inch can have a huge impact on the antenna performance. Final packaging can also be evaluated in terms of antenna performance. The best part is that all of this can be done with real-time speed from the convenience of a lab bench without the need for an anechoic chamber.

To demonstrate the effects of an enclosure, we tested a WiFi antenna array with and without plastic casing. The WiFi antenna array is composed of four omni-directional elements radiating at 2440MHz.

In the picture below, test results of the WiFi antenna array with no plastic casing is shown. For demonstration purpose the antenna array is turned over to show the radiating elements. During the test, WiFi antenna array is flipped over so that the radiating elements are facing the RFxpert.

mimo-no-cover

mimo-no-cover-rfx

Test results of the WiFi antenna array with plastic casing is shown in the picture below. Combined far-field and combined bi-section charts depict the effect of the plastic casing on the antenna array. The antenna array is turned over to show the radiating elements. During the test, WiFi antenna array is turned over to ensure that the radiating elements are facing the RFxpert.

mimo-cover

mimo-cover-rfx

Each test was completed in 1 second.

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

To reset your password, enter the email address you use to sign in to the EMSCAN Partner Lounge.

Get Demo