| 摘要 |
PROBLEM TO BE SOLVED: To provide an electromagnetic field pattern measuring apparatus capable of appropriately measuring electromagnetic field patterns for every antenna to be tested even in the case that the height of the antennas to be tested have differences in elevation. SOLUTION: The electromagnetic field pattern measuring apparatus is provided with an offset amount adjusting means 6 for adjusting the vertical position of an antenna guide means for test 4 for restricting the direction of movement of an antenna 3 for test along a circular arc to adjust the vertical position of the vertical position of an antenna guide means for test 4. Even in the case that the height of an antenna 13 to be tested has differences in elevation due to the size of a device 12 to which the antenna 13 to be tested is mounted, differences in antenna mounting position, etc., it is possible to accurately measure the reception level of the antenna 13 to be tested (at the time of down-link communications) and the reception level of the antenna 3 to be tested (at the time of up-link communications) by adjusting the center of a curvature of the arc along which the antenna 3 to be tested is moved to the height of the antenna to be tested 13 and maintaining a constant measuring distance, the distance separating the antenna to be tested 13 from the antenna 3 to be tested. COPYRIGHT: (C)2006,JPO&NCIPI
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