RF directional coupler circuit assembly for matching high frequency cable TV apparatus
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United States of America Patent
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Nov 19, 2013
Grant Date -
Nov 1, 2012
app pub date -
Aug 10, 2011
filing date -
Apr 28, 2011
priority date (Note) -
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Abstract
An RF directional coupler circuit assembly for matching high frequency cable TV apparatus includes a cover body, and a printed circuit board. The cover body includes a space. The space includes a bottom surface. An RF directional coupler circuit is arranged on the printed circuit board. A 0.01 mm˜2 mm gap is formed between the RF directional coupler circuit and the bottom surface when the printed circuit board is deposited in the space. The distance between the printed circuit board and the cover body is shorten because of the gap, so that the reflections of the high frequency signals and the signal fading are decreasing to achieve matching high frequency impedance characteristics.
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