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 wideband omnidirectional dielectric resonator antenna (DRA) has been proposed. The simulated results show that the reflection coefficient of the DRA is less than −10dB in the frequency band of 1.61GHz-2.92GHz (57.8%), which can cover the 2G/3G/LTE bands simultaneously. In order to improve the omnidirectionality of the DRA array, a novel method to arrange the feeding coaxial cable is proposed. Based...
An aperiodic phased array antenna architecture for space-borne Synthetic Aperture Radar (SAR) is presented. The proposed array antenna possesses several advantages compare to traditional periodic arrays, including using phase-only control to fit different beam shaping and steering requirements, and consuming fewer RF energy to generate same receiving signal power level. An executive approach for the...
A single-layer substrate integrated waveguide slot array is presented for use in low sidelobe applications. A compact three-level power divider is developed to provide the required phase distribution and enhanced co-phase bandwidth. Then, the Elliott’s design procedure is employed taking accurately into account both the external coupling and the high-order mode internal coupling. The measured radiation...
A modified Archimedean spiral antenna operating at a frequency range of 0.5 to 1.5GHz with higher gain than the conventional one is proposed. A multi-layer dielectric structure is successfully introduced in the improved antenna to achieve the purpose of increasing the gain. Stimulation results show that compared with the conventional antenna, the gain of this novel modified antenna increases varying...
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.