Do RFID Tags Lose Their Memory With Age?

Do RFID Tags Lose Their Memory With Age?

The data-retention period for passive HF NFC tags is typically 10 years. Does anybody manufacture passive HF NFC tags with longer retention periods—and, if so, who is doing this? —Clinton ——— Clinton, To answer your question, I reached out to Richard Aufreiter, HID...
Do RFID Tags Lose Their Memory With Age?

For How Long Can an RFID Chip Last?

On what factors does a tag’s lifespan depend? —John ——— John, The lifespan of an RFID tag depends on many factors. If the antenna and chip are exposed to harsh chemicals or high levels of heat, it might not last for very long. But under normal conditions, most...
Do RFID Tags Lose Their Memory With Age?

Is a TID as Important as an EPC?

I have a question about TIDs and EPCs. From what I understand, a TID is, more or less, the serial number of a card being read. Other than that, is the TID of any value? Do the machines that read cards rely on this number at all, or is it mostly the data in the EPC?...
Do RFID Tags Lose Their Memory With Age?

What Is a Circular-Polarized Antenna’s Axial Ratio?

Can you please explain the ratio’s importance in a circularly polarized RFID reader antenna? —Jon ——— Jon, I am not an engineer, but I will offer an answer below. Any of our readers are invited to provide further clarification. A circular-polarized antenna is...