| 摘要 |
A radio frequency anechoic chamber utilizes an expanded central volume defined by two flared pyramidal horns with their outer rims joined together, with the flared sections tapering into rectangular cross-sectioned end volumes on opposite ends of the overall chamber. One end houses the transmitting or receiving antenna and the other end houses the items under test. The transitions between the flared and rectangular sections are configured to minimize diffraction effects and reflections which occur when an electromagnetic wave encounters an edge or surface discontinuity. By reducing reflections and diffraction a near-uniform wave arrives at the item under test, and the more uniform the illumination, the more accurate the results of the test.
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