Novel circular polarization antenna for a UHF bandwidth RFID reader

Author

Chun, Jong-Hun ; Sanguk, Shin ; Youngeun, An ; Seo, Jang-Weon ; Park, Jongan

Author_Institution

Dept. of Silver Care Welfare, Jeonnam Provincial Coll., South Korea

fYear

2009

fDate

25-28 May 2009

Firstpage

423

Lastpage

427

Abstract

This study designed a new circular polarization wave that separates original signals into two signals with phase difference of 90deg using hybrid coupler with 0.16 dB insert loss and phase difference of 90deg and provides them for two strip lines with a length of lambda/2 to realize circular polarization wave reader proposed in this study. This study designed a radiation plate with cross section of 13.4 cm times 13.4 cm having two feed points using phase difference of 90deg to improve power efficiency.

Keywords

UHF antennas; antenna feeds; antenna radiation patterns; electromagnetic coupling; polarisation; radiofrequency identification; waveguide couplers; UHF bandwidth RFID reader; antenna feeds; circular polarization antenna; hybrid coupler insert loss; radiation plate phase difference design; Bandwidth; Directive antennas; Feeds; Insertion loss; Polarization; Radiofrequency identification; Reflection; Reflector antennas; Signal design; UHF antennas; Circular polarization antenna; RFID reader; UHF bandwidth;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, 2009. ISCE '09. IEEE 13th International Symposium on

Conference_Location

Kyoto

Print_ISBN

978-1-4244-2975-2

Electronic_ISBN

978-1-4244-2976-9

Type

conf

DOI

10.1109/ISCE.2009.5156892

Filename

5156892