BEND RADIUS INSENSITIVE IMPEDANCE IN HIGH-SPEED CABLE
A twin-axial cable is provided for high-speed data communication. The twin-axial cable includes a first conductor surrounded by a first portion of an incompressible insulating material and a second conductor surrounded by a second portion of the incompressible insulating material. The first and second conductors are arranged in line in a first axis at a distance apart. A profile of the first and second portions is an elongated profile along a second axis perpendicular to the first axis, such that a first height of the profile is greater than the distance.
1 . A twin-axial cable for high-speed data communication, the twin-axial cable comprising:
a first conductor surrounded by a first portion of an incompressible insulating material, the first conductor having a circular profile; and
a second conductor surrounded by a second portion of the incompressible insulating material, the second conductor having a circular profile, wherein the first and second conductors are arranged in line in a first axis at a distance apart;
wherein a profile of the first and second portions is an elongated profile along a second axis perpendicular to the first axis, such that a first height of the profile is greater than the distance.
2 . The twin-axial cable of claim 1 , wherein in bending the twin-axial cable, the height of the profile decreases from the first height to a second height.
3 . The twin-axial cable of claim 2 , wherein in bending the twin-axial cable, the distance increases from a first distance to a second distance.
4 . The twin-axial cable of claim 1 , wherein, in bending the twin-axial cable, an impedance of twin-axial cable remains within five ohms of a nominal impedance of the twin-axial cable when not bent.
5 . The twin-axial cable of claim 1 , wherein the elongated profile is an oblong profile.
6 . The twin-axial cable of claim 1 , wherein the elongated profile is an elliptical profile.
7 . The twin-axial cable of claim 1 , wherein the height of the profile is two times the distance between the first and second conductors.
8 . The twin-axial cable of claim 1 , wherein the incompressible insulating material includes a silicone rubber material.
9 . The twin-axial cable of claim 1 , wherein the first and second conductors are copper conductors.
10 . A method of forming a twin-axial cable for high-speed data communication, the method comprising:
surrounding a first conductor with a first portion of an incompressible insulating material, the first conductor having a circular profile; and
surrounding a second conductor with a second portion of the incompressible insulating material, the second conductor having the circular profile, wherein the first and second conductors are arranged in line in a first axis at a distance apart;
wherein a profile of the first and second portions is an elongated profile along a second axis perpendicular to the first axis, such that a first height of the profile is greater than the distance.
11 . The method of claim 10 , wherein in bending the twin-axial cable, the height of the profile decreases from the first height to a second height.
12 . The method of claim 11 , wherein in bending the twin-axial cable, the distance increases from a first distance to a second distance.
13 . The method of claim 10 , wherein, in bending the twin-axial cable, an impedance of twin-axial cable remains within five ohms of a nominal impedance of the twin-axial cable when not bent.
14 . The method of claim 10 , wherein the elongated profile is an oblong profile.
15 . The method of claim 10 , wherein the elongated profile is an elliptical profile.
16 . The method of claim 10 , wherein the height of the profile is two times the distance between the first and second conductors.
17 . The method of claim 10 , wherein the incompressible insulating material includes a silicone rubber material.
18 . The method of claim 10 , wherein the first and second conductors are copper conductors.
19 . A twin-axial cable for high-speed data communication, the twin-axial cable comprising:
a first conductor surrounded by a first portion of an incompressible insulating material, the first conductor having a circular profile; and
a second conductor surrounded by a second portion of the incompressible insulating material, the second conductor having the circular profile, wherein the first and second conductors are arranged in line in a first axis at a distance apart;
wherein a profile of the first and second portions is an elongated profile along a second axis perpendicular to the first axis, such that a first height of the profile is greater than the distance, wherein the profile is an elliptical profile, and wherein the height of the profile is two times the distance between the first and second conductors.
20 . The twin-axial cable of claim 1 , wherein in bending the twin-axial cable, the height of the profile decreases from the first height to a second height, and the distance increases from a first distance to a second distance.