Dual-band platform tolerant antennas for radio-frequency identification

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    53 Citations (Scopus)


    A technique for tuning a single-element planar inverted F-antenna (PIFA) to provide a dual-band operation is introduced. The tuning is possible due to the particular impedance level typical to radio-frequency identification microchips. As the desired impedance level resides near the outer rim of the Smith chart, a single impedance locus may be arranged to pass the input impedance twice resulting in dual-band operation. The tuning of the impedance locus is based on the feed inductance and capacitive coupling at the open end of the patch. In this paper, also a discussion about the principles of platform tolerance of small antennas is provided. A design, circuit model, simulations, and measurement results of dual-band platform tolerant PIFAs are reported and discussed.
    Original languageEnglish
    Pages (from-to)2632-2637
    Number of pages6
    JournalIEEE Transactions on Antennas and Propagation
    Issue number9
    Publication statusPublished - 2006
    MoE publication typeA1 Journal article-refereed


    • dual-band
    • energy scavenging
    • planar inverted F-antenna (PIFA)
    • platform tolerance
    • radio-frequency identification (RFID)


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