The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
It has been shown that a newly proposed micro-modeling method for deriving a concise passive circuit of a large-scale EM problem is highly suitable for GPU parallel computation. However, due to the memory bandwidth limit of GPU, the utilization of GPU is far from its peak performance because more than 97% processing time is occupied by the frequent data transactions. This paper proposes an effective...
A new model for analyzing discontinuities in MIC devices is being proposed. The technique is based on the boundary element method. An MIC device with an arbitrarily shaped discontinuity can be treated as a one-dimensional problem. Two numerical examples are given for checking the validity of the model.
A high-resolution realistic human head model for the human exposure assessment of the specific absorption rate (SAR) is presented in this article. To our best knowledge, this model is the first Chinese electromagnetic (EM) human head model (CMODEL). The model is built using the first Chinese Visible Human (CVH) data set containing 3,640 serial axial anatomical images. In particular, the model has...
In this paper, the location problem with route demand is motivated by route construction projects such as railway and cable constructions. The construction activities are along a route and the demand continuous function along the route will be put into the p-median location model. Stones are indispensable materials in railway construction, so that we considered a multi-stage location problem when...
A novel type of slow-wave structure for Smith-Purcell device called dielectric loaded metal grating, is proposed in this article. The three-dimensional (3D) analytical theory for the “hot” dispersion relation is derived using the field matched method and the results accord well with the simulation data performed by using 3D particle-in-cell (PIC) code.
The special absorb rate (SAR) calculation in a layered prolate head model exposed a wire model handset antenna model is investigated using null field method (NFM). NFM is used to solve the scattering problem from the layered prolate head model, and analytical technique is use to obtained current distribution on the thin wire handset antenna. The coupling between the head model and handset antenna...
The electromagnetic radiation of a handset antenna operating in the vicinity of a prolate head model is investigated by NFM and an approximated antenna model. The analytical solution of NFM offers a nearly real time estimation of the SAR value regarding a handset antenna design. Numerical results show the accuracy and efficiency of the proposed quick simulation approach.
The head of the user of a mobile telephone is modeled by a two-layered prolate excited by the near field of a patch antenna. A hybrid null field method/method of moments (NFM/MoM) numerical method is investigated in this paper. NFM is used to solve the scattering problem from the head model, and the MoM using the Rao-Wilton Glisson (RWG) basis functions is applied to model the dipole antenna by distributing...
The development of the first Chinese ElectroMagnetic Human Model (CEMHM) in The Chinese University of Hong Kong is reported. The model can be used in any electromagnetic simulation tools to reveal more accurate and practical biological effect caused by RF radiation of a wireless device. The preliminary numerical study of SAR distribution using the CEMHM is presented. It is found that the maximum SAR...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.