Hello :) Sorry for the late answer, please see below, the VNA measurement of the ANT7-T-ST25DV04K (the chip has been unsoldered to isolate only the antenna)You have on the capture, the inductance value and resistor value of the Antenna at 13.56 MHz y...
Hello BV,Please find as attachment the complete design files of the STEVAL-25R3916B. It has been done under Altium designer.Notice that it's divided in 2 boards with 2 different projects (so 2 different folders)STEVAL-M25R16B => The actual mother boa...
Hello, Sorry for the late answer,The certification tests are not done directly by STMicroelectronics. We rely on an external accredited laboratory for those, because the results are very dependent on the environment (antenna used, anechoic chamber di...
Hello,Neither ANT7-T-25DV64KC nor X-NUCLEO-NFC07A1 have the possibility to disconnect the antenna to connect an external antenna in place. However, it's possible to cut the antenna track and solder an external antenna on it, up to you.Thanks,
