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.
This paper deals with the prediction of the effects of surface distortion on the radiation characteristics of arrays of slot antennas. The deformation of an object caused by exterior loads is calculated by a finite element method. The coupled structural electromagnetic (CSE) model of slotted waveguide arrays (SWA) is developed by the analysis of the positional difference of radiating slots in the...
Both rigid and flexible dynamic analyses have been carried out on a new large deployable space antenna structure combined with a folded hoop, several folded ribs, several inflatable membrane tori and flexible cables, with a diameter of 60 meters. Such a structure can be deployed successfully with proper control. Structure deformations of the deployed antenna with typical load conditions are analyzed;...
In electromechanical coupled analysis of large reflect antennas, the mesh for structure analysis does not match with the mesh for electromagnetism analysis. For this problem, the geometrical optics method is used for electromechanical coupled modelling. A transformation matrix for different meshes has been deducted based on the structure mesh. Use this transformation matrix and improved Gaussian integral...
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.