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In this paper, a Pickett Potter horn antenna is designed and analyzed for Ka band operation. The dimensions of horn are optimized so that the cross polarization level is minimized for the operating frequency range. The design and optimization is done based on theoretical analysis of dual mode horn antennas and computer simulation. The copolarization and the cross polarization radiation pattern of...
In this paper, an aperture matched horn antenna is designed for operation in the microwave X band region. A conical horn is designed first, and the effect of additional aperture matching structure is studied to find the optimum dimension of the structure. The study is performed through computer simulation by Finite Element Method. Finally, the performance of the designed horn antenna for band operation...
Surface communications assets in future NASA exploration scenarios such as robotic rovers, human extravehicular activities (EVA), and probes will necessitate small size, lightweight, low power, and robust antenna elements. With the availability of space in these devices being a major concern, miniature antennas provide a potential solution toward addressing these issues. The current problem with miniature...
The feasibility of obtaining large bandwidth and high directivity from a multilayer Yagi-like microstrip patch antenna at 10 GHz is investigated. A measured 10-dB bandwidth of ~20% and directivity of ~11 dBi is demonstrated through the implementation of a vertically-stacked structure with three parasitic directors, above the driven patch, and a single reflector underneath the driven patch. Simulated...
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