PRINTED CIRCUIT BOARD, CALIBRATION BOARD AND BASE STATION ANTENNA

    公开(公告)号:EP3879625A1

    公开(公告)日:2021-09-15

    申请号:EP21159955.0

    申请日:2021-03-01

    Abstract: Printed circuit boards suitable for base station antennas have a first through hole for receiving a conductor of an electrical connector and a first conductive trace for electrical connection with the conductor to transmit signals. The first conductive trace is provided on a first side of the printed circuit board and the electrical connector is located on the same side of the first conductive trace when mounted on the printed circuit board. The conductor is electrically connected to the first conductive trace via a bypass provided on a second side of the printed circuit board, opposite to the first side. The printed circuit board can be provided for a base station antenna that includes a calibration board including the printed circuit board. The printed circuit board can facilitate the good positioning of the electrical connector thereon, the good electrical performances, or can avoid a possible short circuit.

    CONNECTOR
    62.
    发明公开
    CONNECTOR 审中-公开

    公开(公告)号:EP3761457A1

    公开(公告)日:2021-01-06

    申请号:EP19757344.7

    申请日:2019-02-07

    Inventor: KITAGAWA, Naoki

    Abstract: A connector includes: an insulator that includes a first main surface being a surface that faces a cable, and a rear surface being a surface on an opposite side of the first main surface; a contact that electrically connects the cable and a substrate; and an actuator that is rotatable about a rotation axis parallel to the substrate. The actuator includes a plate-shaped side wall that intersects with the rotation axis. The side wall includes a base portion including a second main surface that is a surface that faces the first main surface when the actuator is rotated in a direction closer to the cable, and a recognition portion that protrudes from the base portion. A distance from the rotation axis to a leading end of the recognition portion in a direction orthogonal to the second main surface is larger than a distance from the rotation axis to the rear surface.

    PRINT HEAD AND LIQUID DISCHARGE APPARATUS
    65.
    发明公开

    公开(公告)号:EP3632686A1

    公开(公告)日:2020-04-08

    申请号:EP19198480.6

    申请日:2019-09-19

    Abstract: A print head discharging a liquid includes a connector having a first terminal, a second terminal, a third terminal, and a fourth terminal, a first integrated circuit, a circuit substrate on which the connector and the first integrated circuit are provided and which has first wiring, second wiring, third wiring, fourth wiring, fifth wiring, and sixth wiring, and a first wiring substrate, in which the first wiring electrically couples the first terminal and the first integrated circuit to each other, the second wiring electrically couples the second terminal and the first integrated circuit to each other, the third wiring electrically couples the third terminal and the first integrated circuit to each other, the fourth wiring electrically couples the fourth terminal and the first wiring substrate to each other, the fifth wiring electrically couples the first terminal and the first integrated circuit to each other, and the sixth wiring electrically couples the first integrated circuit and the first wiring substrate to each other.

    PRINT HEAD CONTROL CIRCUIT AND LIQUID DISCHARGE APPARATUS

    公开(公告)号:EP3626459A1

    公开(公告)日:2020-03-25

    申请号:EP19198470.7

    申请日:2019-09-19

    Abstract: A print head control circuit controls an operation of a print head that includes a nozzle plate and has a self-diagnosis function performed based on signals input from a first coupling point, a second coupling point, a third coupling point, and a fourth coupling point. The print head control circuit includes a first cable that includes a first power voltage signal propagation wiring for propagating a first power voltage signal, and a second cable that includes a first diagnosis signal propagation wiring for propagating a first diagnosis signal input to the first coupling point, a second diagnosis signal propagation wiring for propagating a second diagnosis signal input to the second coupling point, a third diagnosis signal propagation wiring for propagating a third diagnosis signal input to the third coupling point, and a fourth diagnosis signal propagation wiring for propagating a fourth diagnosis signal input to the fourth coupling point. A shortest distance between the nozzle plate and the first cable is longer than a shortest distance between the nozzle plate and the second cable.

    LOW PROFILE CIRCUIT BOARD CONNECTOR
    68.
    发明公开

    公开(公告)号:EP3525290A1

    公开(公告)日:2019-08-14

    申请号:EP19159264.1

    申请日:2014-04-21

    Abstract: An electrical connector (30) comprises a housing (32), contact elements (34) and locking members (36) attached to the housing. The housing has a front end, a back end, a top side, a bottom side and a cavity (32e) between the top side and the bottom side. The cavity is to partially receive a circuit board therein. Each contact element is insertable into the housing along a direction from the bottom side towards the top side. Each locking member is insertable into the housing along a direction from the bottom side towards the top side. The upper and lower contact arms (346) and the lock arm (366) are resiliently deflectable away from the cavity to allow insertion of the circuit board into the cavity, and spring back when the circuit board is inserted into the cavity to make electrical connection to the circuit board and to lock the circuit board in the housing.

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