High-Frequency Noise Detection Antenna

    公开(公告)号:US20220390497A1

    公开(公告)日:2022-12-08

    申请号:US17770017

    申请日:2019-10-29

    IPC分类号: G01R29/10 H01Q1/48 H01Q1/36

    摘要: A high-frequency noise detection antenna is provided with a fine coaxial line that includes a center conductor, an insulator provided so as to surround the whole periphery of the center conductor, and a ground shield provided so as to surround the whole periphery of the insulator, and in which a tip of the center conductor is exposed so as to protrude from the end of the insulator and the end of the ground shield, and an exposed ground shield provided so as to protrude from the end of the ground shield and surround a part in a circumferential direction of an exposed portion from which the center conductor protrudes.

    Optical modulator
    2.
    发明授权

    公开(公告)号:US11467467B2

    公开(公告)日:2022-10-11

    申请号:US17050797

    申请日:2019-05-08

    IPC分类号: G02F1/21 G02F1/01 G02F1/225

    摘要: Reflection between a Mach-Zehnder modulator and a termination resistor is suppressed. An optical modulator includes a differential drive open collector driver IC, a differential drive semiconductor Mach-Zehnder modulator, and a differential terminator. The Mach-Zehnder modulator includes waveguides and a differential high-frequency line. The differential terminator includes a differential high-frequency line and termination resistors. The differential high-frequency line includes a capacity provided at least one of between signal lines and between a signal line and a ground line.

    Optical Module
    4.
    发明申请

    公开(公告)号:US20220357629A1

    公开(公告)日:2022-11-10

    申请号:US17772891

    申请日:2019-10-29

    IPC分类号: G02F1/21 G02F1/225

    摘要: An optical module includes: a Peltier module; an optical semiconductor element mounted on the Peltier module; and a driver that drives high-frequency lines of the optical semiconductor element. The optical semiconductor element includes: optical circuits providing a function of an optical interferometer and the high-frequency lines. Cooling performance of the Peltier module in a region in vicinity of the driver is higher than the cooling performance in other regions.

    Mach-Zehnder modulator
    5.
    发明授权

    公开(公告)号:US11300850B2

    公开(公告)日:2022-04-12

    申请号:US17047984

    申请日:2019-04-11

    IPC分类号: G02F1/21 G02F1/225

    摘要: A second substrate is formed on a first substrate. The second substrate includes a Mach-Zehnder modulation unit and a coplanar line. Further, the second substrate is formed on and bonded to the first substrate via an adhesive layer made of a non-conductive adhesive. The Mach-Zehnder modulation unit has an optical modulation region by an electro-optic effect. The coplanar line transmits a modulated signal to the optical modulation region.

    Optical Modulator Module
    6.
    发明申请

    公开(公告)号:US20210341812A1

    公开(公告)日:2021-11-04

    申请号:US17276656

    申请日:2019-09-11

    IPC分类号: G02F1/21 G02F1/225 G02F1/01

    摘要: In a terminator, a midpoint electrode is provided between a first signal electrode and a second signal electrode, a first resistor is connected between the first signal electrode and the midpoint electrode, a second resistor is connected between the second signal electrode and the midpoint electrode, a first GND electrode is provided on a side opposite to the side where the first resistor is provided with the first signal electrode interposed therebetween, a second GND electrode is provided on the side opposite to the side where the second resistor is provided with the second signal electrode interposed therebetween, and capacitances in the terminator are formed between the first signal electrode and the midpoint electrode, between the second signal electrode and the midpoint electrode, between the first signal electrode and the first GND electrode, and between the second signal electrode and the second GND electrode.

    HIGH-FREQUENCY LINE CONNECTION STRUCTURE
    8.
    发明公开

    公开(公告)号:US20240275014A1

    公开(公告)日:2024-08-15

    申请号:US18691845

    申请日:2021-09-29

    发明人: Hiromasa Tanobe

    IPC分类号: H01P3/06 H01P3/08 H01P3/16

    CPC分类号: H01P3/06 H01P3/081 H01P3/16

    摘要: A high-frequency line connecting structure includes microstrip lines, and a connecting part which bends an extension direction of the line at a place where the microstrip lines are connected. Spaces from which the substrate is removed are formed on the inner peripheral side and the outer peripheral side of the connecting part. The total volume of the space on the inner peripheral side is smaller than the total volume of the space on the outer peripheral side.

    High-Frequency Line Connecting Structure

    公开(公告)号:US20220384928A1

    公开(公告)日:2022-12-01

    申请号:US17772446

    申请日:2019-10-29

    摘要: A high-frequency line substrate is mounted on a printed circuit board. The printed circuit board includes a first high-frequency line. The high-frequency line substrate includes a second high-frequency line and lead pins that connect the first high-frequency line and the second high-frequency line. At the contact portions between the signal lead pins and the second high-frequency line of the high-frequency line substrate, and at the contact portions between the ground lead pins and the second high-frequency line of the high-frequency line substrate, the height of the ground lead pins from an upper surface of the printed circuit board is greater than the height of the signal lead pins.