Connector minimized in cross-talk and electrical interference

1. An electrical connector comprising:

an insulative housing formed with at least a tongue;

signal terminal pairs loaded in the housing, each of the signal terminal pairs comprising a pair of adjacent signal terminals, the signal terminals having contact portions arranged on two opposing mating surfaces of each said at least a tongue;

a first grounding means having front portions arranged between adjacent signal terminal pairs on each said mating surface; and

a second grounding means having front portions embedded in said at least a tongue between signal terminal pairs respectively arranged on the two opposing mating surfaces of each said at least a tongue.

2. The electrical connector as described in claim 1 , wherein the signal terminal pairs on different said mating surfaces are arranged in columns by aligning to each other along a vertical direction perpendicular to said at least a tongue.

3. The electrical connector as described in claim 2 , wherein the first grounding means includes a plurality of first grounding plates each disposed between adjacent said columns in an erect posture along the vertical direction and each formed with a column of said front portions.

4. The electrical connector as described in claim 2 , wherein the second grounding means includes a plurality of second grounding plates each of a width corresponding to that of each said signal terminal pairs and each disposed in the column of said signal terminal pairs.

5. The electrical connector as described in claim 2 , wherein the second grounding means is an elongated integrated plate.

6. The electrical connector as described in claim 1 , wherein said at least a tongue includes two parallel tongues, and there is at least a third grounding means embedded in the housing and respectively disposed between every two of said at least two parallel tongues.

7. The electrical connector as described in claim 1 , wherein each of said signal terminals comprises a tail portion adapted for being connected to a printed circuit board, and the tail portion is of a right-angled structure.

8. An electrical connector formed with a mating section adapted for mating with a mating connector comprising:

an insulative housing;

a plurality of signal terminals and ground terminals arranged in at least two terminal rows, each of the rows including at least a pair of adjacent said signal terminals and one of said ground terminals which are alternatively arranged along said each of the terminal rows; and

a grounding row located between said at least two terminal rows; wherein

said grounding row without any of said signal terminals thereof, includes at least one ground plate.

9. The electrical connector as described in claim 8 , wherein each said signal terminal and each said ground terminal in one of said terminal rows is respectively opposed to a respective said signal terminal and a respective said ground terminal in another of said terminal rows.

10. The electrical connector as described in claim 9 , wherein said at least a ground plate includes a plurality of ground plates each to insulate two said pair of adjacent signal terminals respectively in two adjacent terminal rows.

11. An electrical connector comprising:

an insulative housing defining a base with two tongues thereof, each of said tongues defining two opposite mating faces thereon;

a plurality of signal differential-pair contacts formed on each of said mating faces;

a first type grounding plate disposed in each of said tongues to isolate the adjacent differential-pair contacts from each other on opposite mating faces of the same tongue; and

a second type grounding plate disposed between two opposite planes defined by said opposite tongues to isolate the adjacent differential-pair contacts from each other located on neighboring opposite mating faces of the different tongue, respectively.