Abstract
The precise determinations of innovative CPW-fed slot antenna constructed with circular fractal patterns are introduced. By the Descartes circle theorem and self-similar design of iteration, the CPW-fed slot antenna is proposed. The practical design with multi-band responses is presented. The first resonance exhibits the wide-band operation with impedance bandwidth 66.4% (VSWR < 2). The radiation field presents array patterns, and the axial ratio is 1.18 dB at 1.8 GHz. Experimental results with iterative spectra and contour radiation patterns are presented and discussed. © 2006 Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 1586–1592, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21721
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