Dear
I am looking for suppliers of RF modules and I hope you help me with choosing the right one. Specifically, I am reaching out to ask about the RFID readers and appropriate antennas. I am working with a design that needs to follow the requirements listed below:
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range between tag and antenna about 10-20cm
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materials between tag and antenna:
~5cm wood plate,
~5-10cm polyurethane or polyester
~0-5cm air
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possible some metal bolts in PU/PE
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tag will have to be wristband
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the antenna max size about A5 paper sheet
To specify:
The position of tags may differ so perfect would be circularly polarized antenna. The set will possibly work off-grid so would be nice to have something requiring less power. The tag will be connecting with a very low frequency of about 1 tag per 1-2 seconds.
I was hoping to find modules in low-frequency solutions. I am aware that distance of 10-20 cm may be a hard to get with LF/HF. I am also considering short-range UHF but the price of the module needs to be considered.
I would be grateful for your advice a what module to choose.
Please let me know if there is anything else I need to clarify. I am looking forward to hearing from you.
Kind regards,