Design and optimization of a novel RFID tag antenna

Kong Yang


This article presents a new antenna structure design for the actual demands of an RFID tag antenna to meet the need of broadband and miniaturization. The influence of the parameters of center frequency, return loss and bandwidth is analyzed in detail because of the sensitive-side parameter changing. The bandwidth characteristics of the antenna are improved by multilayer medium. Based on this, a miniature antenna is introduced which can work at 923 MHz with a good return loss. The designed antenna has a size of 34×33 mm, which is the smallest in the class of tag antennas.

Ключові слова

RFID; tag antenna; return loss; multilayer substrate

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