A thin card-sized on-metal UHF-RFID tag using a radiative mushroom structure with an IC chip mounted on a small magnetic loop

作者：Konishi Takayoshi^*; Sanada Atsushi; Kubo Hiroshi; Hori Yoshitaka

来源：IEICE Electronics Express, 2012, 9(4): 276-282.

DOI：10.1587/elex.9.276

• RFID
• tag
• mushroom structures
• high-impedance surfaces
• metamaterials

In this paper, a novel thin card-sized on-metal 953MHz UHF RFID tag is presented. The RFID tag operates in a unique configuration with an IC chip mounted on a small metallic loop and a radiative mushroom structure. A card-sized 54 x 86 x 0.94 mm(3) tag is designed successfully with a reasonable IC impedance matching with appropriate loop dimensions. It is shown that the reading range performance is tolerant of the environment and the measured reading range is 2.6 m on a large 200 x 300 x 2 mm(3) metal board. The reading range is 0.1 m longer than a commercial card-sized on-metal tag with much larger thickness of 1.8 mm.

• 出版日期2012-2-25