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

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5 Author(s)
Rohith K. Raj ; Dept. of Electron., Cochin Univ. of Sci. & Technol. ; Manoj Joseph ; C. K. Aanandan ; K. Vasudevan
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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 (epsivr=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

Published in:

IEEE Transactions on Antennas and Propagation  (Volume:54 ,  Issue: 12 )