Electricity: electrical systems and devices – Miscellaneous
Patent
1991-02-04
1992-01-21
Nimmo, Morris H.
Electricity: electrical systems and devices
Miscellaneous
174 72R, 174117F, 174117FF, 174268, 361415, 361428, 439502, H01B 708, H01R 2368
Patent
active
050832387
ABSTRACT:
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.
REFERENCES:
patent: 3459879 (1969-08-01), Gerpheide
patent: 3612744 (1971-10-01), Thomas
patent: 3670639 (1972-06-01), Harnden, Jr.
patent: 3878341 (1975-04-01), Balde
patent: 4219928 (1980-09-01), Kuo
patent: 4237546 (1980-12-01), Wells
patent: 4255853 (1981-03-01), Campillo et al.
patent: 4481379 (1984-11-01), Bolick, Jr. et al.
patent: 4639693 (1987-01-01), Suzuki et al.
patent: 4845315 (1989-07-01), Stopper
patent: 4879433 (1989-11-01), Gillett et al.
Motorola Inc.
Nielsen Walter W.
Nimmo Morris H.
LandOfFree
High frequency electronic assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High frequency electronic assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High frequency electronic assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-119742