2017 Volume 14 Issue 18 Pages 20170750
A 27-bit circular shaped, highly-dense, fully printable chipless radio frequency identification (RFID) tag is presented in this letter. High data capacity is provided in a compact size. The total dimension of the tag is 22 × 22 mm2. For exciting the tag, the linearly polarized incident plane wave is used. The circular shaped tag structure is analyzed for three different substrates, i.e., Rogers RT/duroid®/5870, Taconic TLX-0 and DuPont™ Kapton® HN. The spectral range for Rogers RT/duroid®/5870 is 3.3–13.5 GHz, 3.4–13.6 GHz for Taconic TLX-0 and 3.7–15.1 GHz for DuPont™ Kapton® HN substrate. Flexibility is achieved by using Kapton® HN substrate. The presented tag is low-cost and flexible; hence it can be easily deployed on wide range of objects.