About luigiantuono

luigiantuono · 2024-09-05

I am designing a custom board using your ST25R95 chip. To design the matching network given the antenna parameters, which I show in the following picture: The tool you recommend (ST25R95_EMI_FILTER_CALCULATION) for the matching network returns me ...

luigiantuono · 2024-05-23

Hello,I am working with an NFC reader with an ST25R3911B chip. The problem I am experiencing is the output power. The power emitted by the antenna is too high; therefore, my task is to reduce the transmitted power.To do this I have relied on reading ...

luigiantuono · 2024-05-13

Dear Sir / Madam, I am reaching out to ask about CE RED certified evaluation kits that include an NFC reader, as I am starting a project based on NFC technology. Could you kindly provide me with a comprehensive list of available evaluation kits meeti...

luigiantuono · 2024-10-02

Hello again Brian,looking into the various AN available I found that this is the circuit I should have simulated (to account for the feedback network):ant this is what came out:but still I have some issues with the antenna parameters (Rant semms to b...

luigiantuono · 2024-10-01

Hi Brian,sorry to come back after all the time. Anyway I had the chance to get a NanoVNA so I was able to perform antenna measument (.s1p) that I am going to attach to this message.I found out that the antenna real values are:Rant = 8.09 Ohm, Lant = ...

luigiantuono · 2024-09-09

Hi Brian thanks for your kind answer. I am not able to reduce the inductance of the reader antenna but I have another antenna I can use in order to read the NFC tag we are currently using.As in the previous question I am going to share with you the c...

luigiantuono · 2024-05-27

Hi Travis,unfortunately the latest RED 2014/53/EU related tests performed on this configuration have not been passed. So my task, as I write in the first posts of the topic, is to lower the power output from the chip and reduce the amplitude associat...

luigiantuono · 2024-05-27

Thanks for your answers,I am going to answer back in chronological order. So starting from @Ulysses HERNIOSUS :- The tag is in the reader field during the dump of register's content while the reader antenna is a custom printed antenna. I am sure of t...

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ST25R95: Resistance value on receiving path

ST25R3911B: Lower the output power

Inquiry Regarding CE RED Certified NFC Evaluation Kits

Re: ST25R95: Resistance value on receiving path

Re: ST25R95: Resistance value on receiving path

Re: ST25R95: Resistance value on receiving path

Re: ST25R3911B: Lower the output power

Re: ST25R3911B: Lower the output power