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.
A multi-layer planar microstrip array at X-band is presented for FMCW-Synthetic Aperture Radar application. A comparative study is provided for conventional corporate fed array and multilayered (proposed) array configurations. The proposed design exhibits an improvement in sidelobe level of the order of 6dB in both E-and H-planes with better cross-polarization level. The common ground plane separating...
Series-fed array of square patches designed at 10 GHz, with three different configurations has been analyzed for sidelobe level and cross-polarization characteristics. A series-fed 8×2 planar array is analyzed to provide a sidelobe level of − 24.2dB and cross-polarization level of −21.8dB. The second configuration; a 2-line series array of 8 elements oriented back to back and fed with 180° out of...
Two simple cloaking configurations that can be used for reducing the Radar Cross Section (RCS) of cylindrical metal objects are presented in this paper. The RCS reduction is accomplished by covering the objects with two different cloaking surfaces i.e. conical metal disks cloak and super thin cloak whose designs are based on the transmission line approach and the microwave networks respectively. The...
An analytical method is proposed for the estimation of gain enhancement in superstrate-loaded microstrip patch antenna, when its dielectric substrate and superstrate are replaced by air. The validity of the proposed analytical model is verified over different physical dimensions of the antenna. Analysis is carried on a rectangular microstrip patch antenna and a hexagonal microstrip patch with various...
A novel technique for obtaining low sidelobes pattern in a planar microstrip array antenna is proposed. This technique involves the addition of two external complementary split ring resonators (CSRRs) at both the ends of each row of the antenna in the ground plane. These two CSRRs together produce an interferometer pattern for the reduction of sidelobes. An planar array at 9.9 GHz is designed...
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.