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 is conceivable that changing the propagation characteristics of the environment actively in some ways enables us to improve transmission performance of wireless communication channel. We call such method “Active propagation control” (APC). In this paper we analyze the channel capacity of multiple-input multiple-output (MIMO) transmission system in order to show the fundamental effectiveness of...
MHz frequency range is often used for wireless power transmission engineering, antenna engineering and so on. In the FDTD method, small cell size is required with complexity of analysis object. On the other hand, the FDTD maximum time step is determined by FDTD cell size. A quite small time step is required if small cell size is used. However, time period of MHz is long. Therefore, extremely large...
We discuss recent developments in a finite-difference time domain (FDTD) algorithm for electromagnetic wave interaction with complex dispersive media, based on a quadratic complex rational function (QCRF). The QCRF is simple and accurate to consider frequency dispersive responses. Compared to the Debye, Drude, or Lorentz dispersion equation, the QCRF equation has more degrees of freedom and it is...
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.