ELECTROMAGNETIC ANECHOIC CHAMBER AND UNIFORM FIELD AREA TESTING APPARATUS
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United States of America Patent
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Issued Date -
Feb 19, 2015
app pub date -
Aug 27, 2013
filing date -
Aug 19, 2013
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Abstract
An electromagnetic anechoic chamber includes a chamber, an antenna mounted therein at a first end, a test bench mounted therein at a second end, and a uniform field area (UFA) testing apparatus. The UFA testing apparatus includes a supporting bar horizontally mounted, a sliding member on the supporting bar, a first driving mechanism to move the sliding member, an upright toothed rack movably supported by the sliding member, a second driving mechanism rotating a gear on the supporting bar to lift or drop the upright rack, and a field intensity probe mounted to a bottom end of the rack. The first driving mechanism and the second driving mechanism can position the field intensity probe at any planar point inside the chamber to avoid any manual repositioning of the field intensity probe during testing.
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