FREQUENCY CHARACTERISTIC ADJUSTING JIG ANTENNA TESTING APPARATUS AND ANTENNA TESTING METHOD AND LOOP ANTENNA

摘要

A jig for adjusting frequency characteristics capable of adjusting a frequency characteristic of a loop antenna having a three-dimensional shape is provided. The frequency characteristic adjusting jig is disposed along the outer periphery of the loop with respect to a part of the conductor forming the loop antenna 1 in a state in which the jig for adjusting frequency characteristics is mounted on the loop antenna 1, And conductive second members (3c, 4c) which are arranged along the outer periphery of the loop with respect to another part of the conductor and which are electromagnetically coupled or electrically connected to the other part of the conductor And a conductive third member 3d, 3e, 4g connecting the first member and the second member with a path different from the path along the loop. And the length along the loop of the first member and the second member is the length along the frequency shift of the frequency characteristic of the loop antenna.