| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna system capable of achieving electric field intensity measurement in which the influence of standing waves is minimized, and dependence on places is small; and to provide an electric field intensity measurement system. SOLUTION: Orthogonal microstrip antennas A1-F1 and A2-F2, where the ratio of forward to backward larger than a prescribed reference value, for example 20dB, are arranged at a linearly symmetrical position, where distance from a symmetrical point is equal each other with a three-dimensional center point P in a regular hexahedron as a symmetrical point. Multibeams are composed of respective antennas A1-F1 and A2-F2. The output of respective antennas A1-F1 and A2-F2 in the antenna system 1 is changed by a 12-channel switch for output, and a network analyzer is used to analyze the changed output. COPYRIGHT: (C)2007,JPO&INPIT
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