| 摘要 |
A mobile phone positioning apparatus provides a rotational movement and switching functionality among three planes (H, E<SUB>1 </SUB>and E<SUB>2</SUB>) as requested by a radiation test. The positioning apparatus includes a base, a support shaft, a platform and a testing plane switch apparatus. The testing plane switch apparatus is mounted on the platform. An inverse U frame is fixed on the platform. A testing frame, pivotally connected to the inverse U frame, is rotated by two pneumatic cylinders so as to switch between the H plane and either the E<SUB>1 </SUB>or E<SUB>2 </SUB>plane by 90 degrees. A testing plate, pivotally connected to the testing frame, is rotated by another pneumatic cylinder so as to switch between the E<SUB>1 </SUB>and E<SUB>2 </SUB>planes by 90 degrees.
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