This document provides detailed specifications for the STEVAL-D25R300A NFC reader antenna. It includes key dimensions such as the antenna's 66mm x 66mm size, as well as the overall board dimensions of 70mm x 192mm. The document also highlights that compliance measurements were made in radiated test modes due to the type of antenna used, negating the need for specific antenna characteristics like gain.
The image showcases the antenna's placement on the board, along with the location of the NFC Reader Chip. The document identifies the main antenna for the NFC Reader Chip as having dimensions of 20x20mm. This information is crucial for understanding the antenna's integration and performance within the NFC reader system. The document is marked as "ST Restricted", indicating its confidential nature.