公开(公告)号：US20040021463A1

公开(公告)日：2004-02-05

申请号：US10355092

申请日：2003-01-31

Applicant: RYOWA ELECTRONICS CO., LTD

Inventor： Yasunori Miyazawa ,  Katsuji Kaminishi ,  Masahiro Yamaguchi ,  Kenichi Arai

IPC: G01R033/00

CPC classification number: G01R29/0878 ,  H01Q7/00

Abstract: A magnetic sensor has a monotonic response to high-frequency magnetic strengths in a frequency range up to superhigh frequencies. The magnetic sensor includes a shielded loop coil having a triplate stripline structure. The shielded loop coil has one-turn looped ground patterns formed respectively in a first layer and a fifth layer and connected parallel to each other by a via, and has an inductance L. The one-turn looped ground patterns have end electrodes facing each other across gaps, one of the end electrodes including the via, providing a combined capacitor operable at high frequencies and having a capacitance C. The product LnullC of the inductance L and the capacitance C is 2.5null10null20 or less and the maximum outer circumference length of the one-turn looped ground lines is 50 nullmmnull or less.

Abstract translation: 磁传感器对高频率频率范围内的高频磁力具有单调响应。 磁传感器包括具有三板带状线结构的屏蔽环线圈。 屏蔽环形线圈具有分别形成在第一层和第五层中的单圈环形接地图案，并且通过通孔彼此并联连接，并且具有电感L.单圈环形接地图案具有彼此面对的端电极 跨越间隙，包括通孔的末端电极中的一个，提供可在高频下操作并具有电容C的组合电容器。电感L和电容C的乘积L xC为2.5×10 -20或更小，并且最大外部 单圈环形接地线的圆周长度为50 [mm]以下。

公开(公告)号：US20030164244A1

公开(公告)日：2003-09-04

申请号：US10373067

申请日：2003-02-26

Applicant: RYOWA ELECTRONICS CO., LTD.

Inventor： Yasunori Miyazawa ,  Katsuji Kaminishi

IPC: H01L023/02

CPC classification number: H05K1/0251 ,  H01L2224/45144 ,  H01L2224/48091 ,  H01P1/047 ,  H01P5/02 ,  H01P5/085 ,  H01R9/0515 ,  H01R24/50 ,  H05K1/0222 ,  H05K1/0298 ,  H05K3/0052 ,  H05K3/325 ,  H05K3/3405 ,  H05K3/3447 ,  H05K3/368 ,  H05K3/403 ,  H05K3/42 ,  H05K2201/0311 ,  H05K2201/0715 ,  H05K2201/09618 ,  H05K2201/09809 ,  H05K2201/10303 ,  H05K2201/10356 ,  H01L2924/00014 ,  H01L2924/00

Abstract: A cut via is formed in an end of a multilayer circuit board of the first transmission line, and a clearance is provided between the cut via and a ground pattern for achieving an impedance matching between the first and second transmission lines. The cut via of a first transmission line which may be a stripline or a microstrip line, and an electrode of the second transmission line are connected to each other, and ground patterns of the first and second transmission lines are connected to each other. The first and second transmission lines have respective signal lines positioned substantially coaxially with each other.

Abstract translation: 切割通孔形成在第一传输线的多层电路板的端部，并且在切割通孔和接地图案之间设置间隙，以实现第一和第二传输线之间的阻抗匹配。 可以是带状线或微带线的第一传输线的切断通路和第二传输线的电极彼此连接，并且第一和第二传输线的接地图形彼此连接。 第一和第二传输线具有彼此基本同轴地定位的各个信号线。