4.3.2 DUT positioning for LMEs on Laptop Ground Plane Phantom

37.5443GPPConformance testingRelease 16TSUniversal Terrestrial Radio Access (UTRA) and Evolved UTRA (E-UTRA)User Equipment (UE) Over The Air (OTA) performance

The DUT positioning on Laptop Ground Plane Phantom means that a laptop ground plane phantom is used for radiated performance measurements in case of plug-in DUT like USB dongles that is used away from the user’s head. This includes all tests cases for LME devices. The characteristics of the laptop ground plane phantom are specified in Annex A.2.3. The objective of the laptop ground plane phantom is to reproduce the effects of the ground plane for the antenna of the DUT while avoiding the variation of the measurements introduced by a real laptop.

The DUT should be plugged into the USB connector and positioned in accordance with the manufacturer recommended primary mechanical mode. In the absence of such a recommendation the DUT with either rotary USB porter or non-rotary USB porter should be horizontally plugged into the horizontal USB connector, as shown in Figure A.2.3-1.