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This paper introduces resonant “traps” and their potential uses to frequency selective surfaces (FSS). A trap can be considered a passive frequency selective switch offering a high or low impedance state depending upon operating frequency. The paper illustrates an established trap application and introduces the potential for use in FSS designs. A harmonically or near harmonically related dual-band...
In this paper, we present the performance of a dual-band textile CPW antenna under different bending and crumpling conditions. The performance of the antenna is presented together with an electromagnetic band gap material (EBG) to improve the wearable antenna performance. The input impedance and radiation pattern are investigated based on numerical and experimental methods at 2.45 GHz and 5.8 GHz.
The Sierpinski gasket monopole is known to exhibit a certain degree of periodic multiband behavior in terms of its input impedance characteristics. However, its overall performance properties are somewhat less than desirable. Specifically, the Sierpinski gasket monopole exhibits a relatively narrow bandwidth in each of its operating bands and its radiation patterns exhibit poor omnidirectionality...
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