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Concealable, low-cost paper-printed antennas for WISP-based RFIDs

Paper-based, inkjet-printed antennas are proposed in this paper as replacement for the typical antennas used on the WISP RFID tag. These antennas are designed to be as concealable as possible. The designs presented exploit meandered techniques in order to achieve significantly reduced dimensions. In particularly, text-based meandered line techniques are applied to obtain both decreased size and concealment. The inkjet printing has been chosen to provide a substrate, which suits the aim of concealment for the final device. Moreover, this paper shows how the inkjet printing techniques perfectly match the text-based design proposed in terms of high applicability. A comparison with the normal antennas mounted on the WISP is performed.