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Compact CPW-fed planar monopole antenna with distinct triple bands for WiFi/WiMAX applications

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4 Author(s)
Ping Wang ; University of Electronic Science and Technology, People¿s Republic of China ; Guang-Jun Wen ; Yong-Jun Huang ; Yuan-Hua Sun

A compact coplanar waveguide (CPW)-fed planar monopole antenna with triple band operation is presented. By inserting two I-shaped notched slots and a open-ended U-shaped slot on the edge of the radiation patch, and integrating two symmetrical meander microstrip-lines on the upper edge of two rectangular ground planes, three operating bands covering 2.4-2.63, 3.23-3.8 and 5.15-5.98-GHz can be achieved. Moreover, the designed antenna, with compact size of 23-30-mm2, can provide excellent characteristics, including better performance of interference suppression, nearly dipole-like radiation pattern and moderate gain for three bands, which prove that the proposed antenna is very suitable for WiFi/WiMAX applications.

Published in:

Electronics Letters  (Volume:48 ,  Issue: 7 )