Flexible circuit connector

1. A flexible circuit connector comprising:

a dielectric holder extending between a base and a mating end, the mating end being configured to be mated with an electrical connector assembly, the base being configured to be mounted to a circuit board, the dielectric holder having a first side and a second side;

a first flexible circuit coupled to the first side of the dielectric holder, the first flexible circuit having a first flexible film, the first flexible circuit having a base edge extending proximate to the base of the dielectric holder, the first flexible circuit having a mating edge extending proximate to the mating end of the dielectric holder, the first flexible circuit having signal conductors routed on the first flexible film between the mating edge and the base edge, the first flexible circuit having ground conductors on the first flexible film providing electrical shielding for the signal conductors; and

a second flexible circuit coupled to the second side of the dielectric holder, the second flexible circuit having a second flexible film, the second flexible circuit having a base edge extending proximate to the base of the dielectric holder, the second flexible circuit having a mating edge extending proximate to the mating end of the dielectric holder, the second flexible circuit having signal conductors routed on the second flexible film between the mating edge and the base edge, the second flexible circuit having ground conductors on the second flexible film providing electrical shielding for the signal conductors.

2. The flexible circuit connector of claim 1 , wherein the dielectric holder is rigid and fixes the relative positions of the first and second flexible circuits between the base edges and the mating edges thereof.

3. The flexible circuit connector of claim 1 , wherein the base of the dielectric holder holds a plurality of ground contacts and signal contacts configured to be electrically connected to the circuit board at a mating interface.

4. The flexible circuit connector of claim 1 , wherein the base includes a plurality of contact channels receiving ground contacts and signal contacts, the ground contacts and the signal contacts being electrically connected to corresponding ground conductors and signal conductors of the first and second flexible circuits, the ground contacts and the signal contacts having mounting pins configured to be press-fit into corresponding conductive vias in the circuit board.

5. The flexible circuit connector of claim 4 , further comprising a first ground strip along the first side of the dielectric holder at the base and a second ground strip along the second side of the dielectric holder at the base, the first ground strip being coupled to a plurality of the ground contacts connected to the first flexible circuit, the second ground strip being coupled to a plurality of the ground contacts connected to the second flexible circuit.

6. The flexible circuit connector of claim 4 , wherein the signal conductors and the signal contacts are arranged in pairs carrying differential signals, the mounting pins of the signal contacts within each pair being staggered such that the mounting pins of the signal contacts associated with the first flexible circuit are nonlinear and the mounting pins of the signal contacts associated with the second flexible circuit are nonlinear.

7. The flexible circuit connector of claim 1 , wherein the base includes a first flexible circuit slot at the first side and a second flexible circuit slot at the second side, the base edge of the first flexible circuit being received in the first flexible circuit slot, the base edge of the second flexible circuit being received in the second flexible circuit slot.

8. The flexible circuit connector of claim 1 , wherein the dielectric holder includes a first spacer plate at the first side and a second spacer plate at the second side, the dielectric holder defining a chamber between the first and second spacer plates, the chamber defining an air gap between the signal conductors of the first flexible circuit and the signal conductors of the second flexible circuit.

9. The flexible circuit connector of claim 1 , wherein the base has a mounting edge at a bottom of the dielectric holder configured to be press assembled to the circuit board, the first and second flexible circuits being press assembled to the circuit board with the dielectric holder.

10. The flexible circuit connector of claim 1 , further comprising a front housing coupled to the mating end of the dielectric holder, the front housing covering the mating edges of the first and second flexible circuits, the front holder including windows exposing the signal conductors and ground conductors at the mating edges of the first and second flexible circuits.

11. A flexible circuit connector comprising:

a dielectric holder having a first side and a second side, the dielectric holder extending between a base and a mating end, the mating end being configured to be mated with an electrical connector assembly, the base being configured to be mounted to a circuit board, the base having a plurality of contact channels, the base having a flexible circuit slot adjacent the contact channels at the first side;

a flexible circuit coupled to the first side of the dielectric holder, the flexible circuit having a flexible film, the flexible circuit having a base edge extending proximate to the base of the dielectric holder received in the flexible circuit slot, the flexible circuit having a mating edge extending proximate to the mating end of the dielectric holder, the flexible circuit having signal conductors routed on the flexible film between the mating edge and the base edge, the flexible circuit having ground conductors on the flexible film providing electrical shielding for the signal conductors;

ground contacts received in corresponding contact channels, the ground contacts being electrically connected to corresponding ground conductors at the base edge; and

signal contacts received in corresponding contact channels, the signal contacts being electrically connected to corresponding signal conductors at the base edge;

wherein the ground contacts and the signal contacts include mounting pins configured to be press-fit into corresponding vias in the circuit board to electrically connect the flexible circuit connector to the circuit board.

12. The flexible circuit connector of claim 11 , wherein the dielectric holder is rigid and fixes the relative positions of the base edge and the mating edge of the flexible circuit.

13. The flexible circuit connector of claim 11 , further comprising a second flexible circuit coupled to the second side of the dielectric holder, the second flexible circuit having a base edge extending to the base of the dielectric holder, the second flexible circuit having a mating edge extending to the mating end of the dielectric holder, the second flexible circuit having signal conductors routed between the mating edge and the base edge, the second flexible circuit having ground conductors providing electrical shielding for the signal conductors.

14. The flexible circuit connector of claim 11 , further comprising a ground strip along the first side of the dielectric holder at the base, the ground strip being coupled to a plurality of the ground contacts.

15. The flexible circuit connector of claim 11 , wherein the dielectric holder includes a first spacer plate at the first side and a second spacer plate at the second side, the dielectric holder defining a chamber between the first and second spacer plates, the chamber defining an air gap.

16. The flexible circuit connector of claim 11 , wherein the base has a mounting edge at a bottom of the dielectric holder configured to be press assembled to the circuit board.

17. The flexible circuit connector of claim 11 , further comprising a front housing coupled to the mating end of the dielectric holder, the front housing covering the mating edge of the flexible circuit, the front holder including a window exposing the signal conductors and ground conductors at the mating edge.

18. A communication system comprising:

an electrical connector assembly having contacts defining an electrical interface;

a circuit board having conductive vias defining an electrical interface; and

a flexible circuit connector electrically connected to the electrical interfaces of the electrical connector assembly and the circuit board to electrically connect the circuit board with the electrical connector assembly, the flexible circuit connector comprising a dielectric holder extending between a base and a mating end and a flexible circuit coupled to the dielectric holder, the flexible circuit having a flexible film, the flexible circuit having a base edge extending proximate to the base of the dielectric holder, the flexible circuit having a mating edge extending proximate to the mating end of the dielectric holder, the flexible circuit having signal conductors routed on the flexible film between the mating edge and the base edge, the flexible circuit having ground conductors on the flexible film providing electrical shielding for the signal conductors, the signal conductors and the ground conductors being electrically connected to signal and ground contacts, respectively, held by the base and press-fit to corresponding conductive vias of the circuit board at the electrical interface of the circuit board, the signal conductors and the ground conductors being electrically connected to corresponding contacts of the electrical connector assembly at the electrical interface of the electrical connector assembly.

19. The communication system of claim 18 , wherein the dielectric holder is rigid and fixes the relative positions of the base edge and the mating edge of the flexible circuit.

20. The communication system of claim 18 , further comprising a second flexible circuit coupled to the second side of the dielectric holder, the second flexible circuit having a base edge extending to the base of the dielectric holder, the second flexible circuit having a mating edge extending to the mating end of the dielectric holder, the second flexible circuit having signal conductors routed between the mating edge and the base edge, the second flexible circuit having ground conductors providing electrical shielding for the signal conductors.