Broadband CPW-fed RFID Antenna at 2.45/5.80 GHz

Author

Ma, D. ; Zhang, W.X.

Author_Institution

State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing

fYear

2007

fDate

16-18 April 2007

Firstpage

84

Lastpage

87

Abstract

A kind of half-ring folded-slot antennas with CPW-fed structure is presented. Two antennas which operate at 2.45 GHz and 5.80 GHz band are designed and fabricated respectively. The 2.45 GHz one with the size of 30 x 36 mm has bandwidth of 17.6 % (VSWR les 2:1) and gain of 1.76~2.21 dBi; the 5.80 GHz one has bandwidth of 26 % (VSWR les 2:1) and gain of 2.9~3.3 dBi, while the size is just 16 x 15 mm. By simulation and test, the radiation pattern is almost omnidirectional in the H-plane. This kind of antennas is suitable for radio frequency identification (RFID) application at 2.45/5.80 GHz.

Keywords

UHF antennas; antenna feeds; antenna radiation patterns; broadband antennas; coplanar waveguides; radiofrequency identification; slot antennas; H-plane; broadband CPW-fed RFID antenna; frequency 2.45 GHz to 5.80 GHz; half-ring folded-slot antennas; radiation pattern; radio frequency identification; Antenna accessories; Antenna feeds; Antenna measurements; Application software; Bandwidth; Broadband antennas; Frequency; Radiofrequency identification; Resonance; Slot antennas; CPW-fed; RFID; half-ring shaped; top-loaded monopole;

fLanguage

English

Publisher

ieee

Conference_Titel

Anti-counterfeiting, Security, Identification, 2007 IEEE International Workshop on

Conference_Location

Xiamen, Fujian

Print_ISBN

1-4244-1035-5

Electronic_ISBN

1-4244-1035-5

Type

conf

DOI

10.1109/IWASID.2007.373701

Filename

4244787