SAR Testing and TAS 3.0 Verification: Balancing Communication Performance with Human Safety

Why is SAR Testing for Smart Glasses More Complex Than for Phones?

Unlike smartphones, smart glasses are worn directly against the head, face, and orbital areas. This creates four major challenges at both the regulatory and technical levels:

• Ultra-Short Body Proximity: Since antennas are nearly in direct contact with human tissue, the evaluation of electromagnetic energy absorption must be exceptionally precise.
• Co-located Multi-Antenna Transmission: In miniaturized architectures, multiple wireless modules may operate simultaneously. Accurately measuring the aggregate SAR value is a core technical hurdle.
• Precise Usage Posture Simulation: Testing must account for the specific spatial positioning of head and eye structures during actual wear.
• The Tug-of-War Between Performance and Safety: Regulatory SAR limits directly impact transmit power, which in turn affects connection quality and user experience.

 

Core Laboratory Capabilities: From R&D Pre-Evaluation to International Certification

To better assist clients in facing these challenges, we provide a one-stop testing service for wearable devices, focusing on professional services that reflect real-world usage:

• Comprehensive Technical Support: Coverage for Bluetooth/BLE, Wi-Fi, 4G LTE, and 5G Sub-6 bands.
• International Standards Compliance: Adhering to FCC (USA), ISED (Canada), and CE (EU) regulations, and compliant with IEC / IEEE SAR testing standards to ensure reports carry global authority.
• Optimization suggestion & Pre-evaluation: We provide more than just raw data. We assist clients during the R&D stage with SAR pre-evaluations and risk analysis to optimize antenna and power configurations, shortening Time-to-Market.

 

Obtained MediaTek TAS 3.0 Verification Approval

In the technical pursuit of balancing connection speed and safety, Time-Averaged SAR (TAS) is the leading algorithm.

We are proud to announce that SGS Taiwan is among the first wave of laboratories approved by MediaTek. We are authorized to perform Time-Averaged SAR (TAS) algorithm verification for Modem, WLAN, and Bluetooth chip platforms based on their latest versions.

Our qualification to perform the latest algorithm verification for MediaTek platforms includes:

• WWAN TA-SAR Gen3
• WLAN / Bluetooth TA-SAR 3.0

This approval means we can help clients using MediaTek solutions maximize communication performance through sophisticated dynamic power management—all while remaining within the safety limits required for FCC and CE certification.

 

Bringing Innovative Designs to Life: Bridging the Gap from Lab to Market

Whether it’s AR/VR devices, Head-Mounted Displays (HMD), or medical and industrial wearables, safety is the foundation of innovation. With our professional testing capabilities and the latest TAS 3.0 verification qualifications, we are committed to helping clients find the "Golden Balance" between regulatory compliance and product performance.

We possess a complete range of TAS verification capabilities and authorizations across Qualcomm, MediaTek, Realtek, and Intel for both WLAN and WWAN. We create value for our clients by:

1. Shortening Development Cycles: Leveraging multi-band and multi-antenna measurement experience to identify non-compliance risks early, avoiding costly late-stage design changes.
2. Technical Compliance Assurance: Providing reports compliant with IEC / IEEE standards that can be used directly for international certification applications.
3. Performance Optimization: Utilizing TAS 3.0 algorithm verification to ensure peak performance within safety parameters.

 

Developing the next generation of wearables? If you require further technical support or SAR pre-evaluation services, please feel free to contact our expert team.

📧  twwireless.MKT@sgs.com  ☎ (02) 2299-3279 # 1530 / 1522 / 1567