51results about How to "Improve high-frequency transmission performance" patented technology

An electrical connector includes an insulating body, a shielding sheet disposed in the insulating body, and a ground terminal received in the insulating body for mating with a mating connector. The ground terminal is fixed between a plate surface of the shielding sheet and the insulating body. The ground terminal includes a front end, a middle section, and a rear end having a soldering portion. A first contacting portion is disposed at the front end, a second contacting portion is disposed at the middle section, and the first contacting portion and the second contacting portion respectively electrically contact with the shielding sheet.

The invention relates to an electric connector comprising an insulation body, two terminal module groups and a metal housing. The insulation body comprises a main body part and a plate-shaped abutted-connection part extending forward from the main body part. The abutted-connection part comprises an upper surface and a lower surface which are opposite and a front end surface and two side surfaces positioned between the upper surface and the lower surface. Each terminal module group comprises an insulation block and a row of conductive terminals fixed on the insulation block. Each conductive terminal comprises a grounding terminal and several differential signal terminals. Each conductive terminal comprises contact parts arranged on the upper surface and the lower surface. The metal housing circles around the outer sides of the terminal module groups. The electric connector is also provided with a metal shielding sheet positioned between the upper surface and the lower surface of the abutted-connection part. The shielding sheet is provided with at least one through hole and an elastic arm extending upwards or downwards in a projection mode from the inner edge of each through hole. Each insulation block is provided with at least one groove used for accommodating the elastic arm. The contacts parts of the grounding terminal are exposed outside of the groove to make contact with the elastic arm. The electric connector of the invention can reduce signal crosstalk.

A carrier module of a cable connector includes a circuit board and a grounding bar disposed on the circuit board. The circuit board includes a first insulating layer, a second insulating layer, and a grounding layer arranged between the first and second insulating layers. The circuit board has a hole formed on a surface thereof and a conductive extension disposed within the hole, and the conductive extension is connected to the grounding layer. The grounding bar includes a base portion and a conductive portion connected to the base portion. The conductive portion is inserted into the hole, and connected to the conductive extension, thereby electrically connecting the grounding bar and the grounding layer of the circuit board. Thus, the carrier module of the instant disclosure is provided with the grounding bar having well grounding performance which is firmly fixed on the circuit board.

The embodiment of the invention provides a gold wire bonding structure based on multi-branch matching and a multi-chip microwave circuit. The structure comprises a first microstrip line, a second microstrip line, and at least two gold bonding wires, wherein the first microstrip line comprises a first dielectric substrate and a first transmission line arranged on the upper surface of the first dielectric substrate; the first transmission line comprises a microstrip matched with the source end; the second microstrip line comprises a second dielectric substrate and a second transmission line; thesecond transmission line comprises a microwave network and a microstrip matched with the load end; one end of the microwave network is connected with the microstrip matched with the load end, and theother end is connected with the first transmission line through the gold bonding wire; the microwave network comprises a plurality of microstrips connected in series and is used for carrying out impedance matching on the gold bonding wires. According to the scheme, the problem of poor signal transmission quality in the high-frequency transmission process can be solved.

The invention discloses a multi-section gradually-changing coaxial type component high-voltage fast pulse response test fixture. The multi-section gradually-changing coaxial type high-voltage component fast pulse response test fixture is a closed coaxial metal shielding body on the whole. The closed coaxial metal shielding body mainly comprises a coaxial fixture of which the left end part, the right end part and the middle part are of gradually-changing structures; the left end part and the right end part are of the same gradually-changing cone structure and are symmetrically arranged at two sides of the middle part; the middle part is a cylindrical coaxial fixture on the whole and comprises a left section coaxial part, a right section coaxial part and a middle section coaxial part, wherein the left section coaxial part and the right section coaxial part are of the same structure and are symmetrically arranged at two sides of the middle section coaxial part; the outer surfaces of inner conductors and the inner walls of outer conductors of the middle part of the fixture are oppositely provided with test device welding points; and inner and outer diameter axial displacement compensation is carried out on portions on the middle part of the fixture, wherein the portions are transitional portions from the equal-diameter conductors to the gradually-changing cones, and therefore, the decrease of the transmission performance of high-frequency signals which is caused by sharp change of radius can be reduced. The multi-section gradually-changing coaxial type component high-voltage fast pulse response test fixture of the invention has the advantages of high innovativeness and structural simplicity. The size of each part is relatively fixed, and the parts can be flexibly disassembled, and standardized production and batch processing can be facilitated. The multi-section gradually-changing coaxial type component high-voltage fast pulse response test fixture has a bright popularization and application prospect.