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Showing 1 to 12 of 12 for “"Characteristic Mode Analysis"”.
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Electromagnetic Characterization of Complex-Shaped Carbon Nanotubes Using Characteristic Mode Analysis
… we calculate the electromagnetic scattering characteristics of carbon nanotubes with complex shapes. Moreover, we quantify the electromagnetic response of these complex carbon nanostructures using Characteristic Mode Analysis (CMA). CMA decomposes the current of a scatterer in terms of a set …
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Scalable Acceleration of The Characteristic Mode Analysis Computational Toolbox Using Big Data Techniques
Characteristic Mode Analysis (CMA) is used in the design and analysis of a wide range of electromagnetic devices such as antennas and nano-structures. CMA provides physical insight into a target's electromagnetic response by analyzing its Method of Moments (MoM) complex impedance matrix at every …
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A Characteristic Mode Analysis of Conductive Nanowires and Microwires Above a Lossy Dielectric Half-Space
… electromagnetic response, we evoked the Characteristic Mode Analysis (CMA) which decomposes the current on the wire into a superposition of fundamental current modes. These modes are weighted by two coefficients: (i) the relative importance of each mode at a certain frequency, termed …
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Application of characteristic mode analysis to variable antenna placement on devices operating in the near -resonant range
… range systems does not exist. Previously, characteristic mode analysis had only been applied to systems with constant geometry that operated in the near-resonant range and the system had constant characteristic modes independent of the probe location. Successful application of …
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Characteristic Mode Analysis of Crumpled Graphene Flakes and A New Green’s Functions Evaluation Method for Layered Media
… was to quantify the electromagnetic scattering characteristics of individual crumpled GFs with shapes resembling those found in real composites. The extinction cross sections of tens of GFs, with different sizes and various levels of crumpleness, were calculated using multiple independent …
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Numerical green's function in surface integral equation method and hydrodynamic model for solar cell analysis
… (A-EFIE) for low-frequency problems and the characteristic mode analysis (CMA) for conducting objects with inhomogeneous background. The NGF of inhomogeneous media is purely independent with SIE which can be obtained by a variety of differential equation solvers with an arbitrary boundary …
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Analysis and design of planar slot antennas for RFID applications using characteristic mode theory
… make use of planar antennas with good radiation characteristics to achieve electromagnetic coupling between the tag and the reader. Thin form factor, placement-insensitivity, small size and good radiation characteristics are essential qualities of planar RFID tag antennas operating in the UHF …
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Analyzing modal decomposition data of finite antenna arrays
… is of infinite extent, greatly simplifying the analysis of the structure and significantly reducing the cost of simulation. However, as array size decreases these approximations break down and the total radiating structure is subject to finite array effects. Such effects can perturb the expected …
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Superdirectivity and the Application of Complementary Split Ring Resonators in Directivity Enhancement of Millimeter-Wave Antennas
… directivity bandwidth is rarely addressed in modern work. Accordingly, the main aim of this thesis is creating dynamic designs that are easily tuned to different radiation and bandwidth requirements. Initially, a superdirective antenna is developed using a new approach. Complementary split …
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RF coupling to realistic wire systems in complex environments
… load terminations. In this work, we adapted the Characteristic Mode Analysis (CMA) to quantify the variations in R.F. coupling with the DUT’s orientation. CMA decomposes the currents excited on the DUT by the impending electromagnetic waves in a set of fundamental modes. CMA is used to identify …
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Mutual Coupling Reduction Techniques for Multi-band Base Station Antennas
… antenna (BSA) arrays for improved radiation characteristics. Array face densification without the proposed techniques leads to undesirable interactions between arrays and radome cover. This research is supported by extensive full-wave electromagnetic simulations, characteristic mode analysis, …
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Novel Electromagnetic Scattering Models for Nano-Composites and Nano-Sensor Applications
… design are how to optimize the nanoparticle characteristics and how to account for their complex environment. Optimization of the electromagnetic response of a nanoparticle requires the accurate design of the nanoparticle’s shape, size, material, and environment. Traditional optimization …