A Meandered Inductive Loop based RFID Tag Antenna at 866 MHz

In this article, a regular tag antenna supporting UHF band RFID composed of spiral-ending meander-line with meandered inductive loop is depicted. This portrayed novel compact spiral-ending meandered tag with dual sided meandered inductive loop microstrip dipole cuts down the area of tag antenna plus provides an upgraded conjugate impedance-matching amid tag and semiconductor ASIC. Aforementioned tag antenna serves at 866 MHz. A predominating compact UHF tag confining the extents of
$60\text{mm}\times 16\text{mm}\times 1.6\text{mm}(0.173\lambda\times 0.046\lambda\times 0.0046\lambda)$
, retaining impressive reflection coefficient has been elegantly testified and it is competent to access recognition territory of 12.6 m. Presented tag antenna layout is simulated in favor of 4 W EIRP reader.