Stop wasting time and money in anechoic chambers with RFxpert

RFxpert is the only real-time, compact bench-top antenna measurement equipment that enables designers to get antenna pattern measurement in under a second, and without an anechoic chamber. Avoid setup and other delays associated with far-field measurements in an anechoic chamber.

Test laptop/tablet-sized antennas/devices in seconds and antennas up to 2.3 m (91”) in minutes.


RFxpert RFX2 World’s Fastest, Repeatable & Reliable Antenna Performance Scanner

The RFX2 is a desktop scanner that characterizes antennas without the need for a chamber. RFX2 provides far-field patterns, bisections, EIRP and TRP in seconds. Novel near-field results, including amplitude, polarity and phase give insights into the root causes of antenna performance challenges and help troubleshoot far-field radiation patterns.

Key Features & Functions

  • 300 MHz - 6 GHz
  • 1,600 H-field probes Maximum radiator size:
  • L 32 cm x W 32 cm (L 12.60” x W 12.60”) real-time scanning
  • L 2.3 m x W 2.3 m (L 91.34” x W 91.34”)
  • Far-field resolution: 1.8° for theta and 3.6° for phi
  • Plug n play: no external analyzer is required to run the system. Simply excite your antenna/device and start testing
  • Test CP (circularly polarized) antennas
  • Get repeatable & reliable results that pinpoint the cause of a design failure
  • Optimize positioning & effects from design layout
  • Monitor changes from packaging or design layout changes
  • Verify performance of a final product
  • Programmable via DLL

What’s Included:

  • RFX2 (integrated antenna board & processing electronics)
  • Universal power supply & cable
  • USB cable
  • Sample reference chip antenna
  • Foam spacer
  • USB drive with RFxpert SW

ETest smartphone-sized antennas/devices in seconds.


Antenna pattern testing in seconds

The RFX is a compact bench-top scanner that characterizes antennas in your own lab environment in real-time. RFX provides far-field patterns, bisections, EIRP and TRP in seconds. Novel near-field results, including amplitude, polarity and phase give insights into the root causes of antenna performance challenges and help troubleshoot far-field radiation patterns.

Key Features & Functions

  • 150 kHz - 8 GHz
  • 1,218 H-field probes
  • Spatial resolution: 7.5 mm
  • Scan area: L 31.6 cm x W 21.8 cm (L 12.44” x W 8.58”)
  • Plug n play: built-in high speed spectrum analyzer (40 MHz instantenous bandwidth (IBW) & 75 GSPS scan rate
  • Visualize hotspots, current loops on intermittent problems in real-time
  • Get repeatable & reliable results that pinpoint the cause of a design failure
  • Address EMC & signal integrity concerns in the design of ultra-high speed (>2 GHz) PCBs

What’s Included:

  • EHX+ (integrated high resolution scanner with embedded spectrum analyzer, processing electronics and cables)
  • Universal power supply & cable
  • Surface wave absorber
  • Ethernet cable
  • USB drive with EMxpert SW
 
RFX2 Product Image
RFX2 Logo
RFX Product Image
RFX Logo
Frequency range 300 MHz - 6 GHz 300 MHz - 6 GHz
Maximum radiator size L 232 cm x W 232 cm
(L 91.34” x W 91.34”) *
With the standard built-in RFxpert software application. There is no limitation in size with a customized program; contact us for details.
L 16 cm x W 10 cm
(L 6.30” x W 3.94”)
Plug 'n Play
2D and 3D near-field patterns (amplitude, phase and polarization)
Far-field patterns and bi-sections (cartesian and polar)
EIRP and TRP
GRAPH S11
Calculate gain and efficiency
Circular polarization
Base station emulator programmable control
OTA phantom head+hand test kit -
* MCP jig to test large antennas -

What is Antenna Pattern?

Textbook definition of antenna pattern or antenna radiation pattern is a graphical representation of the radiation properties (e.g. TRP, gain, efficiency, EIRP, directivity, phase or polarization) of the antenna under test (AUT) as a function of space.

Antenna Pattern Measurement Techniques

Until recently, the two dominant approaches for testing and evaluation of antenna parameters were near-filed and far-field measurement techniques. In the near-field range method antenna emissions are measured in the radiating-near-field region. The results are then projected to the far-field with well-developed and proven algorithms e.g. to offset RF reflections, mutual coupling between the AUT and the measurement antenna/probe, etc. This is critical because most antennas are intended to operate in the far-field region. A direct far-field measurement method can be performed in outdoor or indoor environments. Smaller antennas can be measured in an anechoic chamber. However, testing larger antennas often requires a remote open-air-test-site (OATS) consisting of a large area in a rural environment to avoid reflections. Both antenna pattern measurement techniques are costly and require longer times for Antenna Designers and Wireless Engineers to debug their designs, to do rapid prototyping, and to explore new designs, materials and geometries.

Novel Approach to Antenna Pattern Measurement: Very-Near-Field

RFxpert is a desktop antenna pattern measurement system that characterizes antennas without the need for a chamber. It provides far-field patterns, bisections, EIRP and TRP in less than a second. Novel near-field results, including amplitude, polarity and phase give insights into the root causes of antenna performance challenges and help troubleshoot far-field radiation patterns.

How Does It Work?

RFxpert 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.

Most of the major smart phone manufacturers, military subcontractors, antenna manufacturers, consumer electronics manufacturers and universities have added RFxpert to their test facilities.

Avoid unexpected anechoic chamber test results

Complexity of wireless device designs is increasing. Performance expectations (gain, efficiency, pattern characteristics, etc.) constitute primary challenges in designing stand alone or embedded antennas. Designs are becoming ever more complex with a single device incorporating multiple technologies such as cellular, WiFi, Bluetooth, LTE, MIMO, RFID and GPS. Antenna performance is simply affected by the increasing number of antenna, components co-located with the antenna, enclosures, electronic sub-assemblies, and PCBs. Having immediate access to quick and reliable antenna test equipment is critical.

RFxpert’s unrivalled array of automatically switched probes calculates accurate far-field patterns and radiated power levels based on near-field measurements in less than a second.

Real-time scanning capabilities of RFxpert deliver significant design advantages not only at the design and development stages but also throughout the product lifecycle. Having immediate access to far-field data on your lab-bench significantly saves time and cost by decreasing dependence on time consuming and costly anechoic chambers. Now, wireless engineers and designers don’t lose time waiting in congested anechoic chamber lines to test multiple design iterations and optimize complex embedded antenna designs. They can troubleshoot far-field radiation patterns with novel very-near-field results, including amplitude, polarity and phase that give insights into the root cause of antenna performance challenges. RFxpert allows for more efficient and cost-effective solutions, project cost containment, and accelerated time-to-market.

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