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[help]Does an antenna work without an IC chip?

时间:04-08 整理:3721RD 点击:
HI everyone,

I'm new to this RFID. I'm an optical student but I need to do something about RFID.

My question is,

If a RFID tag has only an antenna without an IC chip, will it respond to the reader?

Thanks~

JJ

See previous threads on RFID versus EAS tags, e.g.: https://www.edaboard.com/viewtopic.php?t=386662

Thank you FvM

I'll check you old post.

Thanks:)

Thank you so much FvM:)

I read the links you referred. I think I want to make a chipless EAS RF lable instead of RFID. Because I want to make the tag only of polymer substrate + gold, with no chip.

I tried to find the design of the LC circuit so that I can print gold on polymer to make a tag. But I couldn't find a design.

Do you know where I can find a design? A most basic 8.2 MHz RF lable design would be good enough. I don't know much about circuit. I hope I can find a design and do my gold printing according to that. If there's no design ready to use, I can learn too. Could you please provide some advice like what should I read?

Thanks a lot FvM~

JJ

I'm not familiar to the design details.

It's been said, that some (or all?) EAS tags include a non-linear capacitor substrate, generating harmonics of the carrier.
I guess, it's the same structure that's used to disable the tag by a strong field.

Hi thanks you again FvM

What does nonlinear capacitor substrate mean? I understand it's an LC circuit. Do you know how they "print" an LC circuit on paper?

Say, if you look at the picture here: <http://www.retailsecurityworld.co.uk/epages/es106151.sf?ObjectPath=/Shops/es106151_shop/Products/%22RS5050%20RF%20Dummy%20Barcode%20Label%20%281k%2 0Box%29%22>
Which part is the L, which part is the C?

Thanks man~

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