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01/09/2020
MEASUREMENT

cSAR3D V4.0: A Breakthrough in Array System Technology

The new X10 Combiner gives cSAR3D Flat phantoms higher measurement resolution, driving the measurement uncertainty below 30% for any source and extending the frequency range to 10 GHz.

cSAR3D V4.0 marks a major advancement for vector measurement-based array measurement systems: the newly integrated "X10 Combiner", a novel algorithm developed by the IT'IS Foundation that reliably combines multiple randomly shifted individual measurements onto a high-resolution grid, eliminates the physical limitation of the sensor density of fixed arrays by virtually increasing the spatial sampling resolution. As a result, the frequency range of cSAR3D has been extended to 10 GHz and the uncertainty has been reduced to 30% for any source. The timing is perfect as the Federal Communications Commission (FCC) and other regulators have recently opened unlicensed spectrum above 6 GHz and the soon-to-be-published IEC/IEEE Standard 62209-1528 includes SAR measurement procedures up to 10 GHz.

The key new features of cSAR3D V4.0 are:

  • X10 Combiner – novel spatial combining algorithm to give a higher measurement resolution
  • Extended frequency range up to 10 GHz
  • Estimation of absorbed power density (epithelial power density) for comparison with new limits in new ICNIRP guidelines and the IEEE C95.1 standard
  • Even faster measurement time

The user video nicely illustrates these new features and how easy they are to use.

Higher Measurement Resolution

The spatial combining algorithm, called the X10 Combiner, is easy to use and does not require any new equipment. The software guides the user to make multiple measurements with the device at random positions on the cSAR3D Flat. It then automatically determines the shift in the device position from the specific absorption rate (SAR) distribution and uses these shifts to reconstruct the 3D pattern using these high-density measurement points. Thus, the physical resolution can be overcome, allowing measurement of devices having very sharp SAR distributions.

Extended Frequency Range

SPEAG extended the frequency range of DASY6 last year to include the 6 – 10 GHz frequency range and has now done the same for the cSAR3D Flat. This meets the emerging needs of wireless device manufacturers to test Wi-Fi and 5G devices in this frequency range.

No change is needed to the cSAR3D hardware. The miniature sensors inside the phantom have good sensitivity and are electrically small at 10 GHz. The tissue-equivalent medium is already compatible with the requirements for dielectric parameters up to 10 GHz. The only requirement is that the cSAR3D Flat or Quad is re-calibrated to include the 6 – 10 GHz frequency range. Note that SPEAG is now accredited to ISO/IEC 17025 for calibration of cSAR3D Flat and Quad at all frequencies in the 650 MHz – 10 GHz range.

cSAR3D V4.0 leads to a significant accuracy improvement for very localized SAR distributions. The full IEC 62209-3 validation (264 test conditions) has been performed on the cSAR3D Flat using the X10 Combiner as well as single measurements. Additional validation tests have been performed in the 6 – 10 GHz frequency range using the X10 Combiner. The results show that all combined values are within +/-1 dB of the target values indicating that the measurement uncertainty when using the X10 Combiner is less than 30% for any source.

Absorbed power density

Another novelty is that cSAR3D V4.0 also assesses and displays the absorbed power density (also known as epithelial power density in IEEE C95.1) averaged over an area of either 1 cm2 or 4 cm2. These dosimetric limits have been defined by ICNIRP (2020) and IEEE C95.1 (2019) in the frequency range above 6 GHz. It is expected that these new basic restrictions will soon be adopted by regulators.

Faster Measurement

SPEAG has also improved the measurement speed. The assessment time is now 2.6 s including acquisition, evaluation of 3D field reconstruction, calculation of uncertainty, and graphical output of the results. This also improves throughput for quality assurance testing in factory environments. Wireless device manufacturers have implemented cSAR3D for factory sampling due to its speed and automation features.

cSAR3D V4.0, together with the manual, are available for download here.

MEASUREMENT

07/04/2015

Contact
info@speag.swiss

 

TDS SNI, a New Line of EMC Sniffing Probes

SPEAG is excited to announce the release of the latest addition to our TDS product family – the TDS SNI probe. With TDS SNI, SPEAG pioneers the use of photonics for accurate and traceable RF measurements in EMC/EMI sniffing applications, bringing the functionality of a benchtop spectrum analyzer to the tip of miniature electrically isolated electric and magnetic field probes.

 
MEASUREMENT

31/03/2015

Contact
info@speag.swiss

 

cSAR3D and cDASY6 Features - Your Feedback is Important to Us

The response we have received on cSAR3D and cDASY6 products has been outstanding, and we would like your help in prioritizing features for the next software release. Please take our confidential survey: https://www.surveymonkey.com/s/ZX53R2N.

 
CORPORATE

19/03/2015

Contact
info@speag.swiss

 

SPEAG’s Full-Body EM Phantom, “POPEYE”, Takes Center Stage in Defining the Road Ahead for Wearable Device Testing

SPEAG’s research partner, the IT'IS Foundation, and the Wireless Research Center of North Carolina have joined forces to define next generation phantom testing in the emerging market for wearable devices. SPEAG's full-body phantom "POPEYE" and other EM phantoms intended towards standards development will be deployed.

 
MEASUREMENT

18/03/2015

Contact
info@speag.swiss

 

BIS Adopts the Indian Standard for Mobile Phone Handsets: Safety Requirements: IS16333 (Part 1):2015

BIS, the National Standards Body of India, has adopted Standard IS16133 (Part1):2015.

 
MEASUREMENT

16/03/2015

Contact
info@speag.swiss

 

cSAR3D V2.0 Release

The innovation continues with SPEAG's release of cSAR3D V2.0. This release fully integrates all cSAR3D phantom types: Flat, Left Head, Right Head and Quad. Shipments of cSAR3D Quad started in November 2014 and have far exceeded our expectations. SAR measurement of simultaneous transmisson is supported, as is base station simulator automation with both CMU200 and CMW500 from Rohde & Schwarz.

 
MEASUREMENT

23/02/2015

Contact
info@speag.swiss

 

 
MEASUREMENT

15/02/2015

Contact
info@speag.swiss

 

Progress for IEC 62209-3 Standard in San Francisco

Significant progress at recent IEC 62209-3 meeting in San Francisco resulted in agreement on broad acceptance of vector array systems such as cSAR3D, and rigorous protocols for validation and uncertainty.

 
MEASUREMENT

16/01/2015

Contact
info@speag.swiss

 

cSAR3D Quad Release

cSAR3D Quad is ideal for fast and accurate SAR testing of laptops, tablets and other large devices. In November and December 2014, several cSAR3D Quad systems were shipped and installed at customer sites, with many more scheduled to ship in early 2015. SPEAG is very pleased with the popularity and initial demand for cSAR3D Quad among our customers. 

 
CORPORATE

31/12/2014

Contact
info@speag.swiss

 

Successful SPEAG exhibtions and workshops during 2013

SPEAG successfully participated on multiple international conferences and exhibitions during 2013.

 
CORPORATE

25/11/2014

Contact
info@speag.swiss

 

20 Years SPEAG & 15 Years IT'IS

The red carpet was rolled out at the Volkshaus at Helvetiaplatz on the evening of Friday, November 21st to welcome attendees of the jubilee party to celebrate the 20th anniversary of SPEAG and the 15th anniversary of the IT’IS Foundation.

 
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