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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

05/08/2016

Contact
info@speag.swiss

 

cSARD6 – Taking SAR Measurements to the Next Level

SPEAG is pleased to announce the release of cSARD6 in Q4 2016, the smart SAR testing solution. cSARD6 integrates cSAR3D with DASY6 and adds new features to create a fully automated and powerful SAR compliance system. This is the most advanced SAR measurement system available today, combining speed and versatility, while maintaining full SAR testing capabilities and compatibility to any of the worldwide standards.

 
SIMULATION

18/07/2016

Contact
semx-support@speag.swiss

 

SEMCAD X Matterhorn V16.0 Released

The SEMCAD X Team is pleased to announce the release of SEMCAD X Matterhorn V16.0, an update of SEMCAD X Matterhorn  V15.6.

 
MEASUREMENT

13/07/2016

Contact
info@speag.swiss

 

cSAR3D V2.6 Release - Faster Automation

Our new cSAR3D software release 2.6 features a further improved reconstruction algorithm, more precise determination of the peak spatial SAR close to the border of the sensor array, and faster and more reliable handovers of 2G, 3G and 4G signals. We are also pleased to announce that this quarter we are releasing both automated testing of devices with dynamic antenna tuners and autonomous DUT positioning based on DASY robots with integrated camera and device charger. 

 
MEASUREMENT

01/07/2016

Contact
info@speag.swiss

 

ISO/IEC 17025 Accreditation for Calibration

ISO/IEC 17025 Accreditation for Calibration of probes & validation sources extended down ot 4 MHz and Calibration of dielectric materials awarded

 
MEASUREMENT

31/03/2016

Contact
info@speag.swiss

 

DASY Measurement Protocol for Capacitively Coupled SAR Distribution

SPEAG recommends an updated measurement protocols for compliance testing with DASY52 to account for new technology trends and regulator requirements. cDASY6 will have a more advanced automated approach.

 
MEASUREMENT

21/03/2016

Contact
info@speag.swiss

 

Chinese OTA Hand Phantoms

Release of the first Chinese OTA hand phantom developed in collaboration with HWA-Tech for the Chinese Academy of Broadcasting Planning (ABP).

 
CORPORATE

11/03/2016

Contact
info@speag.swiss

 

SPEAG Fast SAR Solutions Featured at MIC MRA Workshop in Tokyo

The performance of SPEAG’s products for fast measurement of specific absorption rate (SAR) – DASY6 and cSAR3D – were featured in a presentation by Prof. Niels Kuster at the MIC MRA International Workshop held March 2 – 3, 2016 in Tokyo hosted by the Japanese Ministry of Internal Affairs and Communications.

 
SIMULATION

08/03/2016

Contact
semx-support@speag.swiss

 

SEMCAD Matterhorn V15.6.3 Update Release

The SEMCAD X Team is pleased to announce the release of SEMCAD Matterhorn V15.6.3, an updated version of SEMCAD Matterhorn  V15.6.

 
MEASUREMENT

23/02/2016

Contact
info@speag.swiss

 

Still Groovin’ to the E-Field Probe Blues by Prof. Howard Bassen

The first paper to describe the design and fabrication of a miniature broad-band electric field probe was published more than 40 years ago in the Annals of the New York Academy of Sciences, Biological Effects of Nonionizing Radiation.

 
MEASUREMENT

10/02/2016

Contact
info@speag.swiss

 

Anritsu MT8820C Integrates with DASY6 and cSAR3D

Anritsu Corporation’s MT8820C Radio Communication Analyzer now integrates with both DASY6 and cSAR3D from Schmid & Partner Engineering AG (SPEAG) to provide seamless Specific Absorption Rate (SAR) compliance testing that significantly reduces assessment costs and maximizes flexibility.

 
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