| 摘要 |
PROBLEM TO BE SOLVED: To provide a double-loop antenna capable of covering a frequency band of a digital terrestrial television broadcast by a simple structure, and being installed indoor or outdoor. SOLUTION: In the double-loop antenna, a rectangular loop of a linear conductor is externally arranged, and a loop antenna of a linear conductor is internally arranged so as to be connected at one or two points at an upper side and at one point at each right and left side to be set inside the rectangular loop. Further, both ends of an internal loop antenna are connected to each other by parallel lines to simultaneously supply power at a power-supply unit in the center of the lower side of the external rectangular antenna. COPYRIGHT: (C)2009,JPO&INPIT
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