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In this paper, a five-layer sandwich radome wall, which can work at 14GHz and 94GHz simultaneously, is proposed. The transmittances of the radome wall with different frequencies and different incident angles are presented. The intersection losses of the dual-frequency radome with different scanning angles are simulated by the ray tracing method. The losses are less than 0.2dB at 14GHz and less than...
In this paper, a 17 element linear array parallel scan compact millimeter wave focal plane array imaging system is realized by adding a scanning planar mirror and a fixed planar mirror in front of the improved reverse-microscope system, which is composed of an objective lens and an extended hemispherical lens. For improved reverse-microscope system (IRMS), the profile of objective lens is optimized...
In this paper, the genetic algorithm (GA) combined with ray tracing (RT) method is employed to optimize the design of the dielectric radome. The thickness profile of the radome wall is chosen as the optimization parameter and the minimizing of the boresight error (BSE) of the antenna-radome system is the optimization object. The thickness variation in some region of the radome is proposed for optimal...
In this paper, a Cassegrain monopulse antenna covered with a multilayered Von Karman radome at millimeter wave band is analyzed. The electrically large Cassegrain antenna with the aperture diameter about 38lambda0 is analyzed using ray tracing (RT) method and the radome with the length of 232lambda0 and base diameter of 82lambda0 is analyzed using aperture integration -surface integration (AI-SI)...
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