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Carbon nanotube (CNT) gas sensors have been the subject of extensive research due to their electrical sensitivity to small quantities of gases. In this work, we demonstrate a novel concept system of a low-cost gas sensor utilizing a compact millimeter-wave radar operating at 60 GHz. Characterization of the mm-wave properties of CNTs on paper substrates is performed. When exposed to gas, significant...
This paper introduces a simple spatial filtering model that can be used in the design of closely spaced patch array elements. The model predicts that the mutual coupling reduction can be significant if a single patch element is divided into smaller sections. A system composed of two patch elements separated in a traditional fashion is compared to another system developed using the presented model...
This paper illustrates the design of integrated EBG-antenna system using the transmission line approach. The approach is feasible using transverse EM (TEM) guide in HFSS (a finite element commercial solver), enabling fast and accurate designs. The effect of using single or multiple EBG cells on the radiation pattern is discussed. Designs featuring broadside to end fire radiations are addressed. Such...
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