Design of High Sensitive Broadband Tag Antenna for RFID System in UHF Band

Park, Gun-Do; Min, Kyeong-Sik

Journal of Navigation and Port Research 2009;33(1):51-56.
Published online February 28, 2009.

UHF 대역 RFID 시스템용 고감도 광대역 태그 안테나의 설계

박건도, 민경식

Design of High Sensitive Broadband Tag Antenna for RFID System in UHF Band

Gun-Do Park, Kyeong-Sik Min

Abstract

This paper presents the design of high sensitive/broadband tag antenna for Radio Frequency Identification (RFID) in Ultra High Frequency(UHF) band A proposed tag antenna size is 60mm x 10mm x 1mm. The resonant frequency is 910 MHz and bandwidth is about 900 MHz at -10dB below. The measured return loss and directional pattern have been confirmed a good agreement with the calculation results. The read range if proposed tag antenna with chip is observed about 6.5m and proposed tag antenna Iu s been observed an average 0.5 m far more than read range of the commercial tag antenna.

Key Words: RFID;tag;antenna. UHF band;Broadband;High sensitive. read range;Chip