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High resolution method for direction of arrival (DOA) estimation using array antenna is studied actively. In almost previous studies, it is assumed that the antenna elements have the same directional patterns. However, it is very difficult to make many antenna elements they have just the same directional patterns. Furthermore, the directional patterns are distorted due to mutual coupling between the...
This paper proposes the configuration of a polyhedral array antenna arranged on a polyhedron and describes the limitation of coverage gain of polyhedral antennas. Here, a cube, an octahedron, a dodecahedron, an icosahedron, the truncated icosahedron (soccer ball type), the polyhedron with 60 triangles, and the polyhedron with 80 triangles are considered. And, the relation between the minimum coverage...
In this paper, we propose the system configuration in consideration of antenna directivity when four antennas are mounted on a vehicle and we experimentally demonstrate that the ISDB-T reception probability is improved while the vehicle moves at high speed.
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