| 摘要 |
A receiving antenna for receiving low frequency signals is constituted by arranging two loop antenna elements and one air-core loop antenna element close to each other, wherein the two loop antenna elements are arranged in combination such that a magnetic flux which passes an axis of each one loop antenna element is prevented from passing an axis of another loop antenna element, and one air-core loop antenna element is arranged in combination with the two loop antenna elements such that an axis of the air-core loop antenna crosses respective axes of the one and other loop antenna elements orthogonally.
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