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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

24/10/2017

Contact
info@speag.swiss

 

The first FCC-type certification of a 60 GHz WiGig module granted on the basis of assessment with SPEAG’s unique 5G test system

The FCC has recently granted the first RF exposure type approval for a WiGig embedded wireless communication module. Compliance with FCC limits was demonstrated with SPEAG’s 5G solution.

 
MEASUREMENT

17/10/2017

Contact
info@speag.swiss

 

System Check and Validation Sources for 5G Now Available from 10 – 110 GHz

Last milestone in instrumentation for smooth 5G certification achieved.

 
CORPORATE

11/10/2017

Contact
info@speag.swiss

 

SPEAG Sponsors Awards at 2nd International Workshop on Photonics Applied to Electromagnetic Measurements (PEM2017)

Schmid & Partner Engineering AG (SPEAG) sponsored the awards at the 2nd International Workshop on Photonics Applied to Electromagnetic Measurements (PEM2017), hosted by the IT'IS Foundation and held at the Volkshaus in Zurich, Switzerland on October 5 – 6, 2017. The PEM workshops are devoted to the research, development, and application of photonics in electromagnetic measurements and closely related fields, such as fiber-optic signal transmission, photonic signal processing, display integrated antennas, and photonic device technology.

 
MEASUREMENT

26/09/2017

Contact
info@speag.swiss

 

Release of ICEy-mmW Module V1.0

SPEAG is proud to announce the ICEy-mmW Module Release V1.0, featuring highly automated, contactless testing of power density compliance of 5G and WiGig devices with micrometer precision.

 
CORPORATE

22/09/2017

Contact
info@speag.swiss

 

SPEAG and ZMT Workshop in South Korea on 27 October 2017

Schmid & Partner Engineering AG (SPEAG) and ZMT Zurich MedTech AG (ZMT) are pleased to announce their annual hardware and software workshop, to be held in Seoul, South Korea, on 27 October 2017. Our in-house experts, together with our partners from Dymstec, will demonstrate SPEAG's and ZMT's latest innovations and product updates and provide information about standards trends and our roadmap for addressing emerging industry needs.

 
MEASUREMENT

29/08/2017

Contact
info@speag.swiss

 

New 106/410/DPAS published for vector measurement-based SAR testing systems (frequency range 30 MHz – 6 GHz)

A DPAS (Draft Publicly Available Specification) of Part 3 of the IEC standard 62209, which will allow the use of standardized fixed sensor array systems in addition to robot-based scanning systems, has been submitted for IEC approval.

 
MEASUREMENT

24/08/2017

Contact
info@speag.swiss

 

IT'IS at ICES TC95 Meeting in Rosslyn, VA, 14-16 Aug 2017

In August 2017, the International Committee on Electromagnetic Safety (ICES) Technical Committee 95 held their bi-annual meeting in Rosslyn, VA, to update electromagnetic exposure standards.

 
MEASUREMENT

08/08/2017

Contact
info@speag.swiss

 

cDASY6 5G Module Release V1.0

SPEAG is proud to announce cDASY6 5G Module Release V1.0, featuring reduced scan time, automated evaluation of several planes, and a simplified user-interface.

 
MEASUREMENT

01/08/2017

Contact
info@speag.swiss

 

Communication Systems Update

Updated communication system summary for usage with DASY6 and cSAR3D.

 

 
CORPORATE

26/06/2017

Contact
info@speag.swiss

 

Successful SPEAG / ZMT Hardware and Software Workshops in China and Taiwan

SPEAG, ZMT Zurich MedTech AG and their distribution partner in China and Taiwan, AUDEN Technology Corporation, hosted the popular Annual Hardware & Software Workshop Series in Beijing, Shanghai and Shenzhen (China), as well as Taipei (Taiwan) in June 2017. Overall, more than 200 participants from industry and academia explored SPEAG's and ZMT’s latest innovations and product updates, and discovered how SPEAG’s and ZMT’s solutions and technology roadmap adds value to their current R&D operations while anticipating future technological advances in 2017 and beyond.

 
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