| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna system capable of excellently receiving a digital broadcast signal that is broadcast in a single frequency network (SFN). SOLUTION: An antenna system 1 is provided with a mast 3 that is set upright on the ground plane and that includes a plurality of reception antennas 10. Each reception antenna comprises a plurality of dipole antenna elements 11a to 11d having directivity and laid out in a polygonal shape. The reception antennas 10 are arranged in parallel in the axial direction of the mast. The antenna system 1 acquires broadcast signals received by the dipole antenna elements configuring each reception antenna, composes the signals by each reception antenna, and inputs any of the composed signals by each antenna produced by the composition to an external device as the received signal of the device. COPYRIGHT: (C)2005,JPO&NCIPI
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