期刊
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
卷 8, 期 -, 页码 1043-1045出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2009.2032252
关键词
High-impedance surface (HIS); miniature antenna; radio frequency identification (RFID); RFID metal tag
This letter proposes a miniature radio frequency identification (RFID) tag antenna design for metallic objects application. The antenna structure consists of two rectangular patches electrically connected through vias to the ground plane and a non-connected interconductive layer to form an RFID tag antenna that is suitable for mounting on metallic objects. The miniature design is achieved by inserting a conductive layer into the antenna structure to increase the capacitive reactance of the antenna. This causes the self-resonant frequency of the proposed antenna to approach low frequency; therefore, the high imaginary part of the antenna impedance can be obtained with a small-size RFID tag antenna. The experimental tests show that the maximum read range of RFID tag placed on a metallic object is about 1.5 m, and the overall size is 32 x 18 x 3.2 mm(3) Simulation and measurement results of the proposed RFID tag antenna are also presented in this letter.
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