Signal connector for high-speed transmission

A signal connector for high-speed transmission, comprising:

• a plug insulator;
• a first terminal insulator and a second terminal insulator;
• a first terminal group and a second terminal group each composed of a plurality of terminals arranged in parallel, wherein
• the first terminal insulator and the second terminal insulator are connected together;
• a front end of the first terminal insulator and a front end of the second terminal insulator are connected to a rear end of the plug insulator;
• the front end and a rear end of the first terminal group extend beyond the first terminal insulator;
• the front end and a rear end of the second terminal group extend beyond the second terminal insulator;
• a middle portion of the first terminal group is embedded in the first terminal insulator;
• a middle portion of the second terminal group is embedded in the second terminal insulator;
• the front end of the first terminal group and the front end of the second terminal group are respectively disposed inside of the plug insulator;
• the first terminal group and the second terminal group comprise a plurality of high frequency terminals, and a width of a middle portion of each of the high frequency terminals is smaller than a width of a front end of each of the high frequency terminals;
• a metal shielding sheet, wherein the metal shielding sheet is disposed between the first terminal insulator and the second terminal insulator, the metal shielding sheet comprising:
• a metal shielding sheet body;
• a first shielding protrusion extending from each side of the metal shielding sheet body in an extending direction toward the plug insulator;
• and
• a second shielding protrusion extending from each side of the metal shielding sheet body in an extending direction opposite to the extending direction of the first shielding protrusion, wherein a front end of the first shielding protrusion is disposed in a shielding slot of the plug insulator, and the second shielding protrusion extends beyond the first terminal insulator and the second terminal insulator;
• a front metal case, wherein the plug insulator, the front end of the first terminal insulator, and the front end of the second terminal insulator are disposed in the front metal case, and the first shielding protrusion is electrically connected to the front metal case;
• and
• a PCB board, wherein an end of the PCB board is connected to the rear end of the first terminal insulator and the rear end of the second terminal insulator;
• a rear end of a terminal in the first terminal group and the second terminal group is electrically connected to a gold finger on the PCB board;
• and the second shielding protrusion is electrically connected to a grounding gold finger on the PCB board.