This document contains a collection of SAR (Specific Absorption Rate) dipole calibration certificates, crucial for ensuring the accuracy and reliability of SAR testing for wireless communication devices. These certificates, issued by CTTL (China Telecommunication Technology Labs), provide detailed information about the calibration process, equipment used, and the measured parameters of the dipoles. The calibration procedures adhere to international standards such as IEC/IEEE 62209-1528 and KDB 865664, ensuring traceability to national standards and compliance with regulatory requirements.
Each certificate includes essential data such as antenna parameters with tissue simulating liquid (TSL), feed point impedance, return loss, and SAR values normalized to specific input power levels. The certificates also document the environmental conditions during calibration, including temperature and humidity. Furthermore, extended dipole calibrations are included, verifying the dipoles' performance over time and justifying the extension of calibration intervals based on established criteria. These certificates are vital for manufacturers and testing laboratories to demonstrate the safety and compliance of wireless devices with established SAR limits.