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US 6,146,203 AGranted
Low cross talk and impedance controlled electrical connector
AssigneeBerg Technology, Inc.
InventorsRichard A. Elco, David F. Fusselman
Life of this patent
Estimating the term…
Abstract
Disclosed is an electrical connector in which the conductive and dielectric elements are arranged in a composite I-beam shaped geometry in which the conductive element is perpendicularly interposed between two parallel dielectric and ground plane elements. Low cross talk and controlled impedance are found to result from the use of this geometry.
Claims36
An electrical connector, comprising:
- a first member comprising:
- at least two first metallic contacts having an orientation and an elongated cross-section defined by opposed minor surfaces and opposed major surfaces, at least one of said major surfaces being exposed to material having a first dielectric constant;
- and
- a first dielectric base having a second dielectric constant greater than said first dielectric constant, positioned at one of said minor surfaces of said first metallic contacts and having a first ground plane, wherein the other one of said minor surfaces of the metallic contacts are located away from the dielectric base;
- and
- a second member comprising:
- at least two second metallic contacts having an orientation generally similar to the orientation of the first metallic contacts of the first member and an elongated cross-section defined by opposed major surfaces and opposed minor surfaces, at least one of said major surfaces being exposed to said material having said first dielectric constant;
- and
- a second dielectric base having a dielectric constant about equal to said second dielectric constant of said first dielectric base, positioned at one of the minor surfaces of the second metallic contacts and having a second ground plane positioned in parallel relation to said first ground plane, wherein the other one of said minor surfaces of the second metallic contacts are located away from the second dielectric base to be in electrical contact with corresponding first metallic contacts of the first member to form mated pairs of contacts;
- whereby said contacts are positioned relative to said ground planes and other of said contacts such that coupling at said minor surfaces of said mated pairs of contacts with said ground planes is greater than coupling at said major surfaces of each of said mated pairs of contacts with adjacent mated pairs of contacts so that each said mated pairs of contacts are adapted to conduct a signal having controlled cross talk in an area between said first and second ground planes.
7 more elements
A method of reducing cross talk and controlling impedance in an electrical connector comprising the steps of:
- providing a first dielectric base with a dielectric constant and a ground plane;
- providing a second dielectric base with a dielectric constant and a ground plane, said second dielectric spaced from said first dielectric base;
- providing a material having a dielectric constant less than said dielectric constants of said first and second dielectric bases and located between said first and second dielectric bases;
- connecting said first dielectric base and said second dielectric base with at least two metallic contacts, each contact having a mating portion located entirely between said first and second dielectric bases and an elongated cross-section defined by opposed major surfaces and opposed minor surfaces;
- orienting said contacts so that said minor surfaces are located adjacent said first and second dielectric bases and that at least one of said major surfaces are located adjacent said material;
- and
- causing a signal to be conducted through said contacts between said first dielectric base and said second dielectric base, whereby said contacts are positioned relative to said ground planes and to other of said contacts such that a coupling at said minor surfaces of the contacts with said first and second ground planes is greater than a coupling at said major surfaces of the contacts with the other of said contacts.
4 more elements
A controlled cross talk electrical connector comprising:
- (a) a first member having a first dielectric base with a first dielectric constant, a first side, an opposed second side, and a first ground plane adjacent said second side;
- (b) a second member mateable with said first member and forming a gap therebetween, said second member having a second dielectric base with a second dielectric constant, a first side facing said first side of said first member, an opposed second side, and a second ground plane adjacent said second side;
- (c) a material having a third dielectric constant located in said gap between said first dielectric base and said second dielectric base, wherein said third dielectric constant is less than said first dielectric constant and said second dielectric constant;
- and
- (d) at least two conductive members, each having a mating portion located entirely between said first surfaces of said first and second dielectric bases, and an elongated cross-section defined by opposed major surfaces defining lateral sides and opposed minor surfaces defining edges, one of said edges positioned adjacent said first dielectric base and the other of said opposed edges positioned adjacent said second dielectric base, and said lateral sides being adjacent said material having a third dielectric constant;
- whereby said conductive members are positioned relative to each other and to said ground planes such that a coupling at said edges of said conductive members with said ground planes is greater than a coupling at said sides of said conductive members with the other said conductive members to control cross talk between said conductive members.
3 more elements
Dependencies are inferred from the claim text.