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Given the well documented health effects of electromagnetic radiation on humans, the SAR reduction techniques are becoming increasingly relevant to the industry. However, satisfying the bandwidth, efficiency, size and cost requirements of a low SAR solution for the new mobile terminals remains elusive to-date. This paper presents a method for designing an SAR shield, based on combined use of graphene-type...
This paper describes a newly developed dipole moment (DM) approach, for modeling periodic structures. It is both memory- and time-efficient, and is applicable to arbitrarily shaped elements, whose material properties can also be arbitrary.
Because the EBGs and Metamaterial structures that exhibit interesting characteristics are almost always strictly periodic in nature and because there is an increasing interest in synthesizing new versions of these structures, we need access to both techniques-and computer codes developed on the basis of these techniques-to accomplish our own design goals. Some of the design objectives of Metamaterials...
A novel design for a thin frequency selective surface (FSS) type of metamaterial superstrate for dual-band directivity enhancement is presented as an alternative to a conventional FSS superstrate which is thicker. In the proposed new design, two strip-dipole arrays with the same periodicity, but with different alignments are placed above and below a thin dielectric layer to overcome the problem of...
In this presentation we discuss a number of UHF/RFID tag designs including the hybrid loop, dual crossed-dipoles, and the dual crossed-dipoles using an inductively coupled feed. We have carried out extensive parametric studies in the process of analyzing the characteristics of the above antennas, and have investigated several techniques, including meandering, for size-reduction of these antennas....
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