| 摘要 |
An electromagnetic anechoic chamber includes a support board, a cover, and a number of adjustable boards. The support board defines an opening. The cover covers the support board to form a test chamber between the cover and the support board, electromagnetic wave absorptive material spread on the support board and an inner surface of the cover. Each of the adjustable boards includes an electromagnetic wave absorption layer disposed on one surface thereof and a electromagnetic wave reflection layer disposed on an opposite surface thereof, and is rotatably mounted on the support board and received in the opening to selectively allow the electromagnetic wave absorption layer or the electromagnetic wave reflection layer being inward the test chamber.
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