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In this paper, simulation and measurement results of 0.7-7 GHz double-ridged guide horn (DRGH) antenna with coaxial input feed section is presented. This antenna, due to the large frequency band required by standards, is appropriate to be used in electromagnetic compatibility (EMC) testing and antenna measurement as a transmitter. A step by step method for designing DRGH antenna is given. A suitable...
In this paper a bowl-shaped beam reflectarray antenna is introduced at X band. This kind of radiation pattern is usually desirable for antennas mounted on LEO and MEO satellites to obtain an equal strength signal at any arbitrary location on the earth. In order to achieve this feature, the antenna gain is to enhance at the line-of-site angles to the horizon and diminish at the center. To realize the...
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