Quad-shield cable

1. A cable comprising:

two foil layers and two braid layers, wherein:

the two foil layers have longitudinal seams which are diametrically offset from each other;

each foil layer includes two foil surfaces and each braid layer includes two braid surfaces; and

only one of the foil surfaces contacts only one of the braid layers.

2. The cable of claim 1 , wherein:

the two foil layers are in confrontation with each other; and

the two braid layers are in confrontation with each other.

3. The cable of claim 1 , wherein the two braid layers surround the two foil layers.

4. The cable of claim 1 , wherein:

the two foil layers comprise an inner foil layer and an outer foil layer surrounding the inner foil layer; and

the two braid layers comprise an inner braid layer surrounding the outer foil layer and an outer braid layer surrounding the inner braid layer.

5. The cable of claim 1 , further comprising:

a conductor;

an insulator surrounding the conductor; and

a first of the two foil layers surrounding the insulator and a second of the two foil layers surrounding the first of the two foil layers.

6. The cable of claim 5 , wherein:

a first of the two braid layers surrounds the second of the two foil layers; and

a second of the two braid layers surrounds the first of the two braid layers.

7. A cable comprising:

a conductor;

an insulator surrounding the conductor; and

a shield surrounding the insulator, the shield comprising two foil layers and two braid layers, wherein each foil layer includes two foil surfaces, each braid layer includes two braid surfaces, and only one of the foil surfaces of the two foil layers confronts only one of the braid surfaces of the two braid layers;

wherein the two braid layers have longitudinal seams which are diametrically offset from each other.

8. The cable of claim 7 , wherein:

the two foil layers are in confrontation with each other; and

the two braid layers are in confrontation with each other.

9. The cable of claim 7 , wherein the two braid layers surround the two foil layers.

10. The cable of claim 7 , wherein:

the two foil layers comprise an inner foil layer and an outer foil layer surrounding the inner foil layer; and

the two braid layers comprise an inner braid layer and an outer braid layer surrounding the inner braid layer.

11. The cable of claim 7 , wherein the two foil layers have longitudinal seams which are circumferentially offset from each other.

12. A cable comprising:

two foil layers and two braid layers, the two foil layers having longitudinal seams which are diametrically opposed from each other;

wherein each of the foil layers has an inner foil surface and an opposed outer foil surface;

each of the braid layers has an inner braid surface and an opposed outer braid surface; and

only a one of the outer foil surfaces of the foil layers is in contact with only a one of the inner braid surfaces of the braid layers.

13. The cable of claim 12 , wherein:

the two foil layers are in confrontation with each other; and

the two braid layers are in confrontation with each other.

14. The cable of claim 12 , wherein the two braid layers surround the two foil layers.

15. The cable of claim 12 , wherein:

the two foil layers comprise an inner foil layer and an outer foil layer surrounding the inner foil layer; and

the two braid layers comprise an inner braid layer surrounding the outer foil layer and an outer braid layer surrounding the inner braid layer.

16. The cable of claim 12 , further comprising:

a conductor;

an insulator surrounding the conductor; and

a first of the two foil layers surrounding the insulator and a second of the two foil layers surrounding the first of the two foil layers.

17. The cable of claim 16 , wherein:

a first of the two braid layers surrounds the second of the two foil layers; and

a second of the two braid layers surrounds the first of the two braid layers.