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US 5,083,238 AGranted
High frequency electronic assembly
AssigneeMotorola, Inc.
InventorThomas W. Bousman
Life of this patent
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AssigneeMotorola, Inc.
InventorThomas W. Bousman
Estimating the term…
An electronic assembly comprising a plurality of printed circuit boards residing in a chassis and a removable high frequency, multi-conductor flexible cable, having a connector at each end, the structure of said cable being such that, if positioned in a single plane, it has a plurality of substantially rigid turns, the sum of the degrees of arc of such turns in one direction being equal to the sum of the degrees of arc of such turns in the opposite direction, such that the conductors have equal lengths throughout the cable, resulting in matched signal lengths throughout the cable. To provide optimum shielding, the cable is formed of a plurality of pairs of conductors, each pair is separated by a ground conductor, and the top and bottom of the cable are ground planes. The electronic assembly comprises a plurality of cables arranged to interconnect printed circuit boards within one or more chassis so as to permit relatively unobstructed air flow both between and above the boards and to permit boards to be readily inserted and removed.
An electronic assembly comprising:
An electronic assembly comprising:
A multi-conductor, flexible, thin cable, the structure of said cable being such that, if positioned in a single plane, it has a plurality of substantially rigid turns, the sum of the degrees of arc of such turns in one direction being equal to the sum of the degrees of arc of such turns in the opposite direction, such that said conductors have equal lengths throughout the cable, and wherein said cable comprises a plurality of pairs of conductors, each conductor pair being separated by a ground conductor, and the outer, planar surfaces of the cable comprising ground layers.
A multi-conductor, flexible, thin cable, the structure of said cable being such that, if positioned in a single plane, it has an equal number of substantially rigid left-hand and right-hand turns, such that said conductors have equal lengths throughout the cable, and said cable comprising a plurality of pairs of conductors, each conductor pair being separated by a ground conductor, and the outer, planar surfaces of the cable comprising ground layers.
A cable for use in an electronic component package comprising a plurality of printed circuit boards spaced from one another in a housing, the structure of said cable being such that, if positioned in a single plane, it has a plurality of substantially rigid turns, the sum of the degrees of arc of such turns in one direction being equal to the sum of the degrees of arc of such turns in the opposite direction, such that said conductors have equal lengths throughout the cable, wherein said cable may be arranged to interconnect said printed circuit boards within said housing so as to permit relatively unobstructed air flow both between and above said printed circuit boards, and wherein said cable comprises a plurality of pairs of conductors, each conductor pair being separated by a ground conductor, and the outer, planar surfaces of the cable comprising ground layers.
Dependencies are inferred from the claim text.