A New Compact Microstrip-Fed Dual-Band Coplanar Antenna for WLAN Applications

Author

Raj, Rohith K. ; Joseph, Manoj ; Aanandan, C.K. ; Vasudevan, K. ; Mohanan, P.

Author_Institution

Dept. of Electron., Cochin Univ. of Sci. & Technol.

Volume

54

Issue

12

fYear

2006

Firstpage

3755

Lastpage

3762

Abstract

A novel compact microstrip fed dual-band coplanar antenna for wireless local area network is presented. The antenna comprises of a rectangular center strip and two lateral strips printed on a dielectric substrate and excited using a 50 Omega microstrip transmission line. The antenna generates two separate resonant modes to cover 2.4/5.2/5.8 GHz WLAN bands. Lower resonant mode of the antenna has an impedance bandwidth (2:1 VSWR) of 330 MHz (2190-2520 MHz), which easily covers the required bandwidth of the 2.4 GHz WLAN, and the upper resonant mode has a bandwidth of 1.23 GHz (4849-6070 MHz), covering 5.2/5.8 GHz WLAN bands. The proposed antenna occupy an area of 217 mm² when printed on FR4 substrate (epsiv_r=4.7). A rigorous experimental study has been conducted to confirm the characteristics of the antenna. Design equations for the proposed antenna are also developed

Keywords

antenna feeds; coplanar transmission lines; dielectric bodies; electric impedance; microstrip antennas; microstrip lines; multifrequency antennas; substrates; wireless LAN; 1.23 GHz; 2.4 GHz; 330 MHz; 5.2 GHz; 5.8 GHz; 50 ohm; WLAN application; compact microstrip-fed antenna; coplanar antenna; dielectric substrate; dual-band antenna; impedance bandwidth; lateral strips; microstrip transmission line; rectangular center strip; resonant modes; Bandwidth; Coplanar transmission lines; Dielectric substrates; Dual band; Equations; Impedance; Microstrip antennas; Resonance; Transmission line antennas; Wireless LAN; Coplanar waveguide; dual-band antennas; printed antennas; wireless local area networks (WLANs);

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2006.886505

Filename

4020415