Abstract
A miniature single-layer CPW-fed monopole antenna with triple-band operation for wireless local area network (WLAN) and worldwide interoperability for microwave access (WiMAX) applications is presented. The proposed antenna, comprising a planar rectangular patch element embedded with dual U-shaped slot, is capable of generating three distinct operating bands, 2.37{2.53, 3.34{ 3.82, and 4.23{6.88GHz covering all the 2.4/5.5/5.8GHz WLAN bands and the 3.5/5.5GHz WiMAX bands. The designed antenna has a simple uniplanar structure and occupies a small size of 25 £ 18mm 2 including the flnite ground CPW feeding mechanism. Moreover, the proposed antenna shows good monopole-like radiation patterns with small cross-polarization and stable antenna gains across the three operating bands.
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