Dielectric resonator antenna phased array for fixed RFID reader in near field region

Author

Zainud-Deen, S.H. ; Malhat, Hend A. ; Awadalla, K.H.

Author_Institution

Dept. of Electron. & Electr. Commun. Eng., Menoufia Univ., Menouf, Egypt

fYear

2012

fDate

6-9 March 2012

Firstpage

102

Lastpage

107

Abstract

In this paper a 8×8 dielectric resonator antenna phased array is designed for fixed RFID reader design at 5.8 GHz. Each element in the array has four supporting arms with perforated structure. The sequential feeding technique is used to improve the axial ratio and gain of the array. Near-field focusing technique is used to maximize the radiated power in a limited size spot at a distance of 40 cm from the array aperture by adding a proper phase shift to each element. The array provides 3-dB focus depth of 26 cm with SLL of -14.3 dB compared with SLL of -5.2 dB for uniformly phased array.

Keywords

antenna phased arrays; dielectric resonators; radiofrequency identification; array aperture; axial ratio; dielectric resonator antenna phased array; fixed RFID reader design; near field region; near-field focusing technique; perforated structure; phase shift; sequential feeding technique; uniformly phased array; Antennas; Arrays; Finite element methods; Gain; Probes; Radiofrequency identification; Resonant frequency; DRA; Near-field focusing; RFID reader antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics, Communications and Computers (JEC-ECC), 2012 Japan-Egypt Conference on

Conference_Location

Alexandria

Print_ISBN

978-1-4673-0485-6

Type

conf

DOI

10.1109/JEC-ECC.2012.6186965

Filename

6186965