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Wide dual-band CPW-FED slot antenna

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2 Author(s)
L. Hu ; School of Electronics and Information Engineering, Sichuan University, No. 24, South Section 1, 1st Ring Road, Chengdu, Sichuan 610064, People's Republic of China ; W. Hua

A novel wide dual-band design of a coplanar waveguide (CPW) fed antenna is proposed. By using a double C-shaped metallic strip embedded in a big rectangle slot and an inserted tuning strip, the dual-band resonances of the antenna are generated. Good impedance matching condition at the two separated wide frequency bands is achieved by using two pairs of tuning strips at the double C-shaped strips and a pair of symmetrical slots. The measured results show good dual-band operation, with -10-dB impedance bandwidths of 900-MHz (1.97-2.87-GHz) and 3.22-GHz (4.87-8-GHz) at the two frequency bands, and average antenna gains of 3.2 and 4-dBi, respectively. Monopole-like radiations with small cross-polarisation patterns over the operating bands have been obtained.

Published in:

Electronics Letters  (Volume:47 ,  Issue: 14 )