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公开(公告)号：US11050403B2
公开(公告)日：2021-06-29
申请号：US16556142
申请日：2019-08-29
发明人： Tarou Higuchi , Yoshihiro Imanishi , Yasushi Saito , Shun Takai , Miyuki Nojiri
摘要： A circuit module includes a wiring board on which are provided a ground plane, a signal line, and a conductive pattern for connection to an outer conductor of a coaxial cable including an inner conductor and the outer conductor. A common-mode choke coil is mounted on the wiring board such that one of coils of the common-mode choke coil connects the ground plane and the conductive pattern and that the other coil is inserted in the signal line. A communication element is mounted on the wiring board and includes a first signal terminal and a second signal terminal. The first signal terminal is connected to the common-mode choke coil via the signal line, and the second signal terminal is connected to the ground plane. A first capacitor is inserted in series in the signal line between the common-mode choke coil and the first signal terminal.
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公开(公告)号：US12035460B2
公开(公告)日：2024-07-09
申请号：US18056187
申请日：2022-11-16
IPC分类号： H05K1/02
CPC分类号： H05K1/0233 , H05K2201/093 , H05K2201/09427 , H05K2201/1003 , H05K2201/10545
摘要： A mounting structure for mounting inductors to suppress cross talk and a stub effect due to a mounting land, and reduce deterioration of signal transmission characteristics. A first Bias-T inductor is mounted on a circuit board with one electrode terminal connected to a first mounting land with an axial direction of the first Bias-T inductor oriented perpendicular to the first mounting land and the one electrode terminal extends along the first mounting land. A second Bias-T inductor is mounted on the circuit board in the vicinity of the first Bias-T inductor with one electrode terminal connected to a second mounting land with an axial direction of the second Bias-T inductor inclined by 90° with respect to the axial direction of the first Bias-T inductor and the second Bias-T inductor is oriented perpendicular to the second mounting land and the one electrode terminal extends along the second mounting land.
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