RF interference choke device and RF testing apparatus incorporating the same
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United States of America Patent
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Jan 16, 2018
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app pub date -
Mar 18, 2016
filing date -
Mar 20, 2015
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Abstract
A radio frequency (RF) interference choke device includes a planar dielectric board formed with two first slots and two second slots that extend in a lengthwise direction of the dielectric board. The first/second slots are arranged symmetrically about a central line of the dielectric board parallel to the lengthwise direction, and have a first/second length associated with a first/second frequency band. A metal layer is attached to the dielectric board, and has a U-shaped first pattern surrounding the first slots, a U-shaped second pattern surrounding the second slots, and a strip-shaped third pattern extending along the central line and interconnecting the first and second patterns.
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