Right now we are about to look into CE LTE SAR testing, do you have any related guidance for the CE LTE SAR testing? As you many know, FCC had released KDB document (KDB 941225 D05) for the LTE SAR test consideration.

In terms of standards, the European standards for Head and Body SAR testing like EN 62209-1, EN 62209-2 and EN 62311 do not specifically address specific technologies such as LTE. The test guidance is relatively generic where they tend to provide guidance on device transmission settings, duty cycles, the modes to be covered, as well as considerations for antenna configurations and multiple operating modes where a device has multiple transmitters which can transmit simultaneously.

For R&TTE Directive compliance where a device supports multiple modes of operation, if SAR testing is to be streamlined due to the various LTE modes, channel bandwidths and resource block allocations one way to minimize is by taking output power measurements for all of the modes and measuring in the modes which have a higher RF output and the same can be done where there are multiple transmit slots. We would be looking for the SAR report to include an explanation of the operating modes which were selected for test based on the power level, frequency and antenna used.

The FCC KDB methodology would be recommended as it does provide clear guidance on channels, resource block allocations and channel bandwidth(s) that are to be tested based on the FCC lab guidance on LTE. Future releases of the IEC head and body standards will hopefully include more technology based guidance. The FCC KDB 941225 D05 procedure can be obtained from the FCC website from the Knowledge Database Publications page.

Do you have a question ask it here?

Leaders in EMC Testing , Environmental Testing, Safety Testing, Radio and Telecoms Testing, CE Marking, Vibration Testing, Climatic Testing, Certification, Training and Consulting