Microwave wafer probe having replaceable probe tip
    11.
    发明授权
    Microwave wafer probe having replaceable probe tip 失效
    微波晶片探头具有可更换的探头

    公开(公告)号:US4849689A

    公开(公告)日:1989-07-18

    申请号:US267397

    申请日:1988-11-04

    IPC分类号: G01R1/067 H01L21/66

    CPC分类号: G01R1/06772

    摘要: A microwave wafer probe having a replaceable planar transmission line probe tip which detachably connects to a planar transmission line circuit board within the probe head. The circuit board may include passive and/or active electrical circuit components interconnecting its conductors which, due to the detachable interconnection with the probe tip, do not have to be replaced if the probe tip should be damaged. The detachable interconnection between the probe tip and the circuit board is tolerant to misalignment of the two elements because the interconnected end portions of the respective conductors are shaped so as to maintain the impedance between the two elements substantially constant despite misalignment. Preferably, both the circuit board and the detachable tip include coplanar transmission lines interconnected by compressing the overlapping end portions of their conductors together.

    High-frequency active probe having replaceable contact needles
    12.
    发明授权
    High-frequency active probe having replaceable contact needles 失效
    高频有源探头具有可更换的接触针

    公开(公告)号:US5006793A

    公开(公告)日:1991-04-09

    申请号:US364091

    申请日:1989-06-08

    IPC分类号: G01R1/067

    CPC分类号: G01R1/06772

    摘要: A high-frequency probe comprising a semirigid coaxial line which terminates in an active circuit assembly. The coaxial line's outer conductor is connected to a box while its inner conductor is connected to an active circuit chip. A signal contact needle is attached to the active circuit chip and extends linearly with the coaxial line. The signal needle is held in place with a mass of epoxy filled with silica microballoons, providing a low-capacitance mount.A ground contact needle is connected to a wiper which contacts the box, thus providing a direct, and short, path between the coaxial line's outer conductor and the ground contact needle.

    摘要翻译: 一种高频探头,包括终止在有源电路组件中的半刚性同轴线。 同轴线的外部导体连接到盒子,而其内部导体连接到有源电路芯片。 信号接触针连接到有源电路芯片并与同轴线线性地延伸。 信号针固定在充满硅胶微球的环氧树脂块上,提供了低电容安装。 地面接触针连接到与盒子接触的擦拭器,从而在同轴线的外导体和接地针之间提供直接且短的路径。

    Coaxial transmission line to microstrip transmission line launcher
    13.
    发明授权
    Coaxial transmission line to microstrip transmission line launcher 失效
    同轴传输线到微带传输线发射器

    公开(公告)号:US4855697A

    公开(公告)日:1989-08-08

    申请号:US212309

    申请日:1988-06-27

    IPC分类号: H01P5/02 H01P5/08

    CPC分类号: H01P5/085

    摘要: A launcher having an outer conductor and a tapered central contact pin within a bore of the outer conductor connects coaxial transmission lines with microstrip transmission lines. The launcher, when used with a microstrip transmission line having a specific dielectric substrate thickness, provides matching of both the characteristic impedance and the electro-magnetic field configuration. The launcher also may be used effectively with microstrip transmission lines having different substrate thicknesses An adjustable stop transversely positions the upper surface of the microstrip transmission line relative to the launcher's outer conductor to counteract capacitive discontinuities caused by different substrate thicknesses. Although such adjustments flex the central contact pin transversely, thus changing the launcher's characteristic impedance, the launcher provides better overall matching between the two types of transmission lines. The contact tip of the pin has a cylindrical contact surface coaxial with the pin, thus forming a repeatable line contact with the upper conductor of the microstrip transmission line enabling consistent results. The bore of the outer conductor is at an angle with respect to the coaxial transmission line jack, allowing the tapered pin to extend coaxially with the jack so that the pin can be drilled and tapped on its center axis, simplifying its mass production.

    Integrated capacitors for forming components of bandpass filters
    14.
    发明授权
    Integrated capacitors for forming components of bandpass filters 失效
    用于形成带通滤波器组件的集成电容器

    公开(公告)号:US4737744A

    公开(公告)日:1988-04-12

    申请号:US831683

    申请日:1986-02-21

    IPC分类号: H01G4/38 H03H7/01 H03H7/075

    摘要: Integrated capacitors provide more than one capacitor on a single dielectric substrate. A dielectric substrate has a conductive backplane on one side and two or more conductive capacitor plates on the opposite side. The integrated capacitors may be mounted on a shield wall which has a through hole so that one capacitor is connected to the shield wall and another forms a coupling capacitor via the hole between two stages on opposite sides of the shield wall.

    摘要翻译: 集成电容器在单个电介质基板上提供多于一个的电容器。 电介质基板在一侧具有导电背板,在相对侧上具有两个或多个导电电容器板。 集成电容器可以安装在具有通孔的屏蔽壁上,使得一个电容器连接到屏蔽壁,另一个电容器通过屏蔽壁相对侧上的两个级之间的孔形成耦合电容器。

    Loop coupled YIG resonator
    15.
    发明授权
    Loop coupled YIG resonator 失效
    环路耦合YIG谐振器

    公开(公告)号:US4633205A

    公开(公告)日:1986-12-30

    申请号:US801280

    申请日:1985-11-25

    申请人: Keith E. Jones

    发明人: Keith E. Jones

    IPC分类号: H01P1/218 H01P7/00 H01P7/06

    CPC分类号: H01P1/218

    摘要: An improved loop coupled YIG resonator has a coupling loop of three sections, a loop section partially encircling a YIG resonator, and two straight end sections. The end sections together with a ground plane enclosing one end of the resonator cavity form a transmission line, the characteristic impedance of which is determined by the distance of the end section above the ground plane. The characteristic impedance is chosen to match the transmission line input to which the coupling loop is connected.

    摘要翻译: 改进的环路耦合YIG谐振器具有三个部分的耦合回路,部分环绕YIG谐振器的环路部分和两个直端部分。 端部与包围谐振腔的一端的接地平面形成传输线,其特性阻抗由端部在接地平面上方的距离决定。 选择特性阻抗以匹配耦合回路连接到的传输线输入。