Floating connector with an impedance adjusting member

1. An electrical connector comprising:

a contact having a contact portion, a board connecting portion, and a flexible coupling portion connecting the contact portion and the board connecting portion;

a movable housing configured to receive the contact portion of the contact;

a fixed housing connecting to the board connecting portion, the movable housing being tiered with respect to the fixed housing; and

an impedance adjusting member, the impedance adjusting member arranged with the flexible coupling portion;

wherein the flexible coupling portion includes a first curved portion, a second curved portion, and a linear coupling portion, the second curved portion bending in a reversed direction from a direction that the first curved portion bends, the linear coupling portion connecting the first curved portion and the second curved portion;

wherein the flexible coupling portion further includes a wide portion along the linear coupling portion and has a wing-like shape that projects in a widthwise direction.

2. The electrical connector according to claim 1 , wherein the impedance adjusting member has a groove in a bottom surface, into which the linear coupling portion of the flexible coupling portion is inserted.

3. The electrical connector according to claim 2 , wherein a lower end of the groove has folded back portions each extending from each side wall of the groove to oppose to each other.

4. The electrical connector according to claim 2 , wherein the impedance adjusting member is attached over the linear coupling portion in a moveable state in a direction that the groove extends.

5. The electrical connector according to claim 3 , wherein the impedance adjusting member is attached over the linear coupling portion in a moveable state in a direction that the groove extends.

6. The electrical connector according to claim 1 , wherein a width of the wide portion is set so as to be inserted into a groove of the impedance adjusting member.

7. The electrical connector according to claim 6 , wherein the groove is arranged to have a given pitch therebetween in a lengthwise direction.

8. The electrical connector according to claim 7 , wherein lower ends of the groove are respectively provided with folded back lugs that extend and oppose each other from respective side walls.

9. The electrical connector according to claim 6 , further comprising a stopper arranged at a rear side of the wide portion of each side surface of the flexible coupling portion, the stopper projects in the widthwise direction.

10. The electrical connector according to claim 1 , wherein the contact portion is configured to mate with a mating contact and the board connecting portion is configured to connect to a circuit board.

11. The electrical connector according to claim 1 , wherein the impedance adjusting member is made of a dielectric material.

12. The electrical connector according to claim 1 , wherein the movable housing is positioned at a given distance apart from the fixed housing.

13. An electrical connector comprising:

a contact having a contact portion, a board connecting portion, and a flexible coupling portion connecting the contact portion and the board connecting portion;

a movable housing configured to receive the contact portion of the contact;

a fixed housing connected to the board connecting portion, the movable housing being tiered with respect to the fixed housing; and

an impedance adjusting member having a groove in a bottom surface, into which a linear coupling portion of the flexible coupling portion is inserted, the impedance adjusting member arranged with the flexible coupling portion;

wherein the flexible coupling portion includes a first curved portion, a second curved portion, and the linear coupling portion, the second curved portion bending in a reversed direction from a direction that the first curved portion bends, the linear coupling portion connecting the first curved portion and the second curved portion;

wherein a lower end of the groove has folded back portions each extending from each side wall of the groove to oppose to each other.

14. The electrical connector according to claim 13 , wherein the impedance adjusting member is attached over the linear coupling portion in a moveable state in a direction that the groove extends.

15. The electrical connector according to claim 13 , wherein the flexible coupling portion further includes a wide portion along the linear coupling portion and has a wing-like shape that projects in a widthwise direction.

16. The electrical connector according to claim 15 , wherein a width of the wide portion is set so as to be inserted into the groove of the impedance adjusting member.

17. The electrical connector according to claim 16 , wherein the groove is arranged to have a given pitch therebetween in a lengthwise direction.

18. The electrical connector according to claim 17 , wherein lower ends of the groove are respectively provided with folded back lugs that extend and oppose each other from respective side walls.

19. The electrical connector according to claim 16 , further comprising a stopper arranged at a rear side of the wide portion of each side surface of the flexible coupling portion, the stopper projects in the widthwise direction.

20. The electrical connector according to claim 13 , wherein the contact portion is configured to mate with a mating contact and the board connecting portion is configured to connect to a circuit board.

21. The electrical connector according to claim 13 , wherein the impedance adjusting member is made of a dielectric material.

22. The electrical connector according to claim 13 , wherein the movable housing is positioned at a given distance apart from the fixed housing.