A design of off centered feed array (OCFA) antenna for ISM band

Author

Azlan, A.A. ; Ali, M.T. ; Salleh, M.K.M.

Author_Institution

Center Of Med. Electron. Technol. (CMET), Sultan Salahuddin Abdul Aziz Shah Polytech., Shah Alam, Malaysia

fYear

2012

fDate

23-26 Sept. 2012

Firstpage

233

Lastpage

238

Abstract

In this paper, a patch antenna for 2.45 GHz ISM (Industrial Scientific Medical) band Wireless Body Area Network (WBAN) applications is proposed. The antenna structure consists of a microstrip antenna array consist of 3 by 3 OCFA (off centered feed array) that is coaxial feed through type antenna with Unbalanced characteristic whereby the feed line situated off centered from the OCFA antenna structure. Two matching stub and Circular matching BalUn were introduced to match the impedance of the antenna and contribute high gain antenna about 11.84 dB at 2.45 GHz. Then, the entire proposed antennas were being analyzed in term of return loss, Voltage Standing Wave Ratio (VSWR), radiation pattern and gain. The fabricated proposed antenna only analyzed in term of return loss using Vector Network Analyzer (VNA).

Keywords

UHF antennas; antenna feeds; antenna radiation patterns; baluns; body area networks; microstrip antenna arrays; ISM band; WBAN; antenna gain; circular matching balun; coaxial feed; frequency 2.45 GHz; gain 11.84 dB; high gain antenna; industrial scientific medical band; matching stub; microstrip antenna array; off centered feed array antenna; patch antenna; radiation pattern; return loss; voltage standing wave ratio; wireless body area network; Antenna feeds; Arrays; Equations; Impedance matching; Mathematical model; Microstrip antenna arrays; BalUn; Industrial Scientific Medical; Return loss; Wireless Body Area network; matching stub;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Technology and Applications (ISWTA), 2012 IEEE Symposium on

Conference_Location

Bandung

ISSN

2324-7843

Print_ISBN

978-1-4673-2209-6

Type

conf

DOI

10.1109/ISWTA.2012.6373851

Filename

6373851