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http://dx.doi.org/10.6109/jicce.2015.13.3.159

A Design for a CPW-Fed Monopole Antenna with Two Modified Half Circular Rings for WLAN/WiMAX Operations  

Kim, Woo-Su (Planning and Budget Team Evaluation, Korea Institute of Industrial Technology)
Yoon, Joong-Han (Department of Electronic Engineering, Silla University)
Publication Information
Journal of information and communication convergence engineering / v.13, no.3, 2015 , pp. 159-166 More about this Journal
Abstract
In this paper, a novel design for a triple-band coplanar waveguide (CPW)-fed monopole antenna for WLAN/WiMAX operations is proposed. The proposed antenna is printed on an FR4 substrate with an area of 22.0 mm × 30.0 mm, a thickness of 1.0 mm, and a relative permittivity of 4.4. The effects of various parameters of the proposed for triple band operation is investigated. Two half circular rings and a microstrip feed line are fabricated on the substrate to achieve triple band operation and good impedance matching. Prototypes of the proposed antenna have been fabricated and tested. Experiment results reveal that the measured return loss exhibits an acceptable agreement with the simulated return loss and satisfies the impedance bandwidth requirement of -10 dB, while simultaneously covering the WLAN and WiMAX bands. In addition, the proposed antenna shows good radiation characteristics and gains in the three operating bands.
Keywords
CPW-fed; Triple-band operations; Two half circular rings; WLAN/WiMAX antenna;
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