An Antenna Design for the Miniaturization of the RFID Tag

Guo Cuijuan, Li Dechong, Rong Feng, Liu Xiaoyong

Abstract


A novel matching way between antenna of a 2.45GHz active RFID tag and power amplifier (PA) is presented in this paper. Dipole antenna is not only used as a transmitting antenna of the RFID tags, but also as a differential amplifier resonant inductor. The total PA chip size is reduced greatly to only 240μm70μm in a 0.18μm CMOS process due to saving two on-chip integrated inductors. The total tag size is reduced greatly to only 42mm18mm owing to meandered dipole antenna. 


Keywords


RFID; miniaturization; dipole antenna; power amplifier (PA).

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References


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