Design of a novel high-efficiency UHF RFID antenna on flexible LCP substrate with high read-range capability

Author

Basat, S. Serkan ; Bhattacharya, Swapan ; Yang, Li ; Rida, Amin ; Tentzeris, Manos M. ; Laskar, Joy

Author_Institution

Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA

fYear

2006

fDate

9-14 July 2006

Firstpage

1031

Lastpage

1034

Abstract

In this paper, the design and development of a unique high read-range high-efficiency (95%) radio frequency identification (RFID) antenna for the 915 MHz UHF band is discussed. The RFID exceptional characteristics are investigated in terms of antenna-IC matching and radiation efficiency. This 915 MHz passive tag is a 3" times 3" omnidirectional tag and yielded a read range of 31 feet compared to a 4" times 4" leading commercial design of 26 feet tested range in lab. This tag also possesses higher read power range (-7 dBm to 30 dBm) than the leading commercial design (-5 dBm to 30 dBm). The proposed RFID antenna was fabricated on 50.8 micron thick liquid crystal polymer (LCP) and the read range of the proposed RFID tags was experimentally verified

Keywords

UHF antennas; impedance matching; liquid crystal polymers; radiofrequency identification; substrates; 26 feet; 31 feet; 915 MHz; antenna-IC matching; flexible LCP substrate; high read-range capability; high-efficiency UHF RFID antenna; liquid crystal polymer; omnidirectional tag; passive tag; radiation efficiency; radio frequency identification; Dipole antennas; Electromagnetic coupling; Frequency; Hafnium; Passive RFID tags; RFID tags; Radiofrequency identification; Testing; UHF antennas; Variable structure systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium 2006, IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

1-4244-0123-2

Type

conf

DOI

10.1109/APS.2006.1710709

Filename

1710709