Abstract: A connector, and printed circuit board foot pattern for a connector which can efficiently transmit a high-speed differential signal are provided. In a connector 1, a contact group 30 includes at least paired adjacent signal contacts SC-SC, and non-paired contacts GC which are placed on both adjacent sides or one adjacent side of the paired signal contacts. The contacts are arranged so that the distance W1 between the paired signal contacts SC-SC is shorter than the distance W2 between adjacent signal and non-paired contacts SC-GC, thereby enhancing the differential coupling force between the paired signal contacts SC-SC.

Abstract: The present invention provides a connector including a body having insulation properties and a terminal group. The terminal group includes a pair of first signal terminals, a second signal terminal, and a third terminal that are arrayed in a row along a first direction in the body. The first signal terminals are adjacent to each other in the first direction. The third terminal is disposed between one of the first signal terminals and the second signal terminal. The third terminal includes a shielding portion extending in a direction crossing the first direction.

Abstract: A connector according to the invention includes an insulative body, and a first contact and a second contact that are disposed in the body at different height levels from each other, the first contact or the second contact being elastically deformable. The first contact includes an mismatched portion having an higher impedance than that of another portion of the first contact. The second contact includes an adjusting portion to be brought close to the mismatched portion by elastic deformation of the first contact or the second contact in a direction close to the second contact or the first contact.

Abstract: The invention provides a connector including a body having insulation properties and a terminal group arranged in a row in a first direction of the body. The terminal group includes a pair of first signal terminals, a second signal terminal, and a ground terminal. The first signal terminals extend in a second direction and are adjacent to each other in the first direction. The second signal terminal extends in the second direction. The ground terminal extends in the second direction and is disposed between one of the first signal terminals and the second signal terminal. A widthwise dimension in the first direction of the ground terminal is less than twice that of each of the first signal terminals. A thicknesswise dimension of at least a part of the ground terminal in a third direction is larger than that of each of the first and second signal terminals.

Abstract: The invention provides an electrical connector having a cross crosstalk prevention member such as a metal plate readily connectable to ground with simple structure of the connector itself. The electrical connector includes: a housing (10) with an receiving hole (120); contact groups (200a, 200b), being arranged on opposite sides of the receiving hole in the housing; and a multilayer circuit board (300) to be received in the receiving hole and interposed between the contact groups. The contact groups include ground contacts (220a, 220b). The multilayer circuit board includes a solid conductor layer (310) provided inside the multilayer circuit board, ground conductors (322, 332) provided on a surface of the multilayer circuit board, and through-holes (340) to connect the solid conductor layer with the conductors. When the multilayer circuit board is received in the receiving hole, the conductors are in contact with the contacts.

Abstract: A shield case of the invention includes a receiving portion of generally rectangular tuboid shape adapted to accommodate a body with contacts arrayed, the receiving portion having a top plate and side walls; a folded-back portion, provided at a front end of the receiving portion and folded back rearward, or provided at a rear end of the receiving portion and folded back forward; and a cover of generally downward U-shape, extending from the folded-back portion and along the top plate and the side walls of the receiving portion.

Abstract: The invention provides a high frequency circuit module according to the present invention includes: a circuit component having a plurality of terminals arranged on an outer side thereof, and a circuit board of a multilayered construction or a single-layered construction. A first outer face of the circuit board serves as a component mounting face for mounting the circuit component. The circuit board includes a ground conductor layer; a plurality of electrode pads provided on the component mounting face, the electrode pads being configured for connection with the associated terminals of the circuit component; and a plurality of waveguides provided on the first outer face or a second outer face, or in an inner portion of the circuit board. The waveguides are electrically connected with the associated electrode pads. Routing directions of all or some of adjacent waveguides are opposite from each other.

Abstract: A connector, and printed circuit board foot pattern for a connector which can efficiently transmit a high-speed differential signal are provided. In a connector 1, a contact group 30 includes at least paired adjacent signal contacts SC-SC, and non-paired contacts GC which are placed on both adjacent sides or one adjacent side of the paired signal contacts. The contacts are arranged so that the distance W1 between the paired signal contacts SC-SC is shorter than the distance W2 between adjacent signal and non-paired contacts SC-GC, thereby enhancing the differential coupling force between the paired signal contacts SC-SC.

Abstract: According to the present invention, a multipolar connector 1 has a housing 2 made of an insulating material, and a plurality of terminals P1 to P6 which are held by the housing 2. The plurality of terminals P1 to P6 include: a terminal pair P3, P4 in which two terminals P3, P4 that are adjacent to each other while disposing a first gap A are paired; and one non-paired terminal P2 or P5 which is adjacent to the terminal pair P3, P4 while disposing a second gap B. The terminal pair P3, P4 is a pair for transmitting differential signals. The first gap A is narrower than the second gap B.

Abstract: The invention provides a connector including a body having insulating properties, a conductive shield case surrounding the body, and a first terminal group arrayed in a line in the body. The first terminal group includes a first terminal and a second terminal. The second terminal is disposed adjacent to the first terminal and having a higher impedance than the first terminal. The shield case includes an adjacent portion that is adjacent to at least a portion of the second terminal and on an opposite side to the first terminal. At least one of the portion of the second terminal and the adjacent portion of the shield case is extended in width so as to shorten a distance between the portion of the second terminal and the adjacent portion of the shield case in accordance with an impedance difference between the first terminal and the second terminal.

Abstract: [Object] The invention provides an electrical connector having a cross crosstalk prevention member such as a metal plate readily connectable to ground with simple structure of the connector itself. [Configuration] The electrical connector includes: a housing 10 with an receiving hole 120; contact groups 200a and 200b, being arranged on opposite sides of the receiving hole 120 in the housing 10; and a multilayer circuit board 300 to be received in the receiving hole 120 and interposed between the contact groups 200a, 200b. The contact groups 200a, 200b includes ground contacts 220a, 220b. The multilayer circuit board 300 includes a solid conductor layer 310 provided inside the multilayer circuit board 300, ground conductors 322, 332 provided on a surface of the multilayer circuit board 300, and through-holes 340 to connect the solid conductor layer 310 with the conductors 322, 332.

Abstract: A shield case of the invention includes a receiving portion of generally rectangular tuboid shape adapted to accommodate a body with contacts arrayed, the receiving portion having a top plate and side walls; a folded-back portion, provided at a front end of the receiving portion and folded back rearward, or provided at a rear end of the receiving portion and folded back forward; and a cover of generally downward U-shape, extending from the folded-back portion and along the top plate and the side walls of the receiving portion.

Abstract: The invention provides a multipolar connector wherein one terminal row can be divided into a plurality of rows (row conversion) while reducing an impedance mismatch. A multipolar connector (1) includes a terminal group (40) in which a plurality of terminals (4) are arranged in one row in contact portions (4a) with respect to terminals of a counter connector, and, while being then passed through a row converting portion (45), one terminal row (41) is divided into a plural-row portion (44) consisting of two rows (42, 43) and functioning as a connecting portion that is opposite to the counter connector, and row-converted to a substantially zigzag arrangement. The terminal group includes two specific terminals (46, 47) in which, in the plural-row portion (44), the terminal width (L1) is wider than the terminal width (L2) of the contact portions (4a). The two specific terminals constitute a terminal pair for transmitting differential signals.

Abstract: A connector with a structure having a tip of a body holding a first contact set is located in an opening formed by a shell member including a shell and a shield cover. A tip of a body holding a second contact set is located in an opening formed by the shell member, and a plurality of receptacles are integrated, a shield plate is placed between the first contact set and the second contact set in parallel with a direction orthogonal to the longitudinal direction of contacts in the two contact sets to reduce crosstalk between the plurality of receptacles.