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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

06/02/2016

Contact
info@speag.swiss

 

Notice: Limited warranty on phantoms

Important notice to avoid shell degradation of SPEAG phantoms due to exposure to aggressive liquids.

 
CORPORATE

04/02/2016

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info@speag.swiss

 

IT'IS/Speag/ZMT Retreat in Melchsee-Frutt on Mastering Sales/Funding, Spotting Trends and Shaping the Future

Twenty IT'IS Foundation, SPEAG, and ZMT co-workers convened for two-day retreat, 01 – 02 February 2016, held at the Hotel Frutt Lodge & SPA, in Melchsee-Frutt, Canton Obwalden. The goal of the retreat was to learn how to spot trends and become a trend setter, to master sales, to assess the current status of the organization, and to establish measures for improvement.

 
CORPORATE

22/01/2016

Contact
info@speag.swiss

 

Let’s Party! Festivities to Kick Start 2016!

This year’s party of Z43 (IT'IS Foundation, SPEAG, ZMT) was held at trendy Art Dock, located in the former freight terminal between Zurich’s Hardbrücke and Central train stations.

 
SIMULATION

08/12/2015

Contact
semx-support@speag.swiss

 

SEMCAD Matterhorn V15.6 Released

The SEMCAD X Team is pleased to announce the release of SEMCAD Matterhorn V15.6, an update of SEMCAD Matterhorn  V15.4.

 
CORPORATE

12/11/2015

Contact
info@speag.swiss

 

National Future Day 2015 – Wireless Power Transfer with the Kids “Wonderful and Powerful Team”

Thursday, November 12 was 2015 Future Day at Z43, and six engaged and curious youngsters spent the day visiting our team at IT’IS, SPEAG, and ZMT laboratories.

 
MEASUREMENT

04/11/2015

Contact
info@speag.swiss

 

SPEAG Strongly Recommends Regular Recertification of OTA Hand Phantoms

On the basis of careful investigation of used hand phantoms that have been returned to our labs, SPEAG strongly recommends recertification of all SHO hand phantoms after at most 3 years of use or in the case of any visible damage.

 
MEASUREMENT

26/10/2015

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info@speag.swiss

 

DAKS-12, SPEAG’s New Portable DAK System for Lower Frequencies

SPEAG is pleased to announce the release of our latest portable dielectric measurement system, the DAKS-12, which combines SPEAG’s DAK-12 probe with a handheld single-port ShockLine MS46121A vector network analyzer from Anritsu. The easy-to-use DAKS-12 is designed for very robust dielectric measurements in the frequency range of 10 MHz – 3 GHz.

 
CORPORATE

23/10/2015

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info@speag.swiss

 

Successful SPEAG / ZMT Hardware and Software Workshop in Korea

ZMT Zurich MedTech AG and SPEAG hosted the annual Hardware and Software Workshop in Korea on October 23, 2015, with Dymstec, SPEAG’s distribution partner in Korea, as the local organizers of this popular event. Approximately 200 participants attended the workshop to preview ZMT’s and SPEAG’s latest innovations and product updates and to learn about the roadmap for future technological advances in 2015 and beyond. 

 
MEASUREMENT

23/10/2015

Contact
info@speag.swiss

 

Review of Fast SAR in Microwave RF Technology China

SPEAG products cSAR3D and DASY6 are featured in a recent issue of Chinese journal Microwave and Radiofrequency Technology. 

 
MEASUREMENT

04/10/2015

Contact
info@speag.swiss

 

cSAR3D V2.4 Release - Reduced Uncertainty

SPEAG continues to advance the state of the art for precise and fast SAR measurement with the release of cSAR3D V2.4. The implementation of new calibration techniques and reconstruction algorithms has significantly improved the measurement accuracy. Modulation analysis and standards-compatible fast SAR protocols are also new in this release.

 
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