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This paper summarizes the latest advances on an innovative, broadband multibeam antenna, proposed for satellite communications by the Institute of Electronics and Telecommunications of Rennes (IETR), in the framework of a collaborative research with the French Space Agency (Centre National d'Iîtudes Spatiales). The antenna comprises an array of long slots, parallelfed by a corporate feed network of...
This paper focuses on an antenna with a stepped slot structure. The paper analyzes the impedance and radiation characteristics of this type of antenna and designs a high-gain wideband antenna that operates in the L-band and S-band. The simulation results show that the antenna has a comparatively high gain, wide impedance bandwidth and beamwidth in the entire L-band and S-band, and can thus be used...
Two wideband phased arrays based on tightly coupled elements are considered. Specifically, wideband arrays with two different types of elements are investigated and compared, and the role of the ground plane plays in wideband phased arrays is studied. Based on the numerical results obtained from the commercial software Ansoft HFSS, the general relationship among the ground plane, operation bandwidth,...
For the first time, the idea of using a light-reflecting metallic antenna for design of a solar-cell system is proposed. The antenna for this new concept is named Green Antenna for its association with renewable energy. Both the Green Antenna and its ground plane simultaneously act as light-reflecting surfaces for the solar-cell system. To demonstrate the idea, a suspended plate antenna (SPA) array...
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