Method and apparatus for neutron radiation monitoring
    1.
    发明授权
    Method and apparatus for neutron radiation monitoring 失效
    中子辐射监测方法和装置

    公开(公告)号:US4498007A

    公开(公告)日:1985-02-05

    申请号:US390869

    申请日:1982-06-22

    IPC分类号: G01T3/08 G01T3/00

    CPC分类号: G01T3/08

    摘要: A self-calibrated neutron radiation monitor includes a flux responsive element comprised of intrinsic silicon neutron detectors and self-calibration resistors in a single structure. As the resistance of the flux responsive element increases to the value of successive calibration resistors, known increments of flux have been encountered.

    摘要翻译: 自校准中子辐射监测器包括由本征硅中子检测器和单一结构中的自校准电阻组成的通量响应元件。 随着磁通响应元件的电阻增加到连续校准电阻的值,已经遇到已知的通量增量。

    Phase shifter
    2.
    发明授权
    Phase shifter 失效
    移相器

    公开(公告)号:US4238745A

    公开(公告)日:1980-12-09

    申请号:US49583

    申请日:1979-06-18

    IPC分类号: H01P1/185 H01P3/08 H01P9/00

    CPC分类号: H01P1/185

    摘要: A phase shifter comprises a segment of transmission line and a reentrant transmission path segment. Each phase shift "bit" utilizes only a pair of diodes to switch in a transmission path which provides the desired phase shift. The phase shifter is of relatively small size and is relatively inexpensive.

    摘要翻译: 移相器包括传输线段和可重入传输路径段。 每个相移“位”仅利用一对二极管来切换提供所需相移的传输路径。 移相器的尺寸相对较小并且相对便宜。

    Folded dipole radiating element
    3.
    发明授权
    Folded dipole radiating element 失效
    折叠偶极辐射元件

    公开(公告)号:US4498085A

    公开(公告)日:1985-02-05

    申请号:US428585

    申请日:1982-09-30

    IPC分类号: H01Q9/26 H01Q9/28 H01Q21/06

    CPC分类号: H01Q21/062 H01Q9/26 H01Q9/285

    摘要: A one-piece array antenna folded dipole radiating element is formed from a wide, thin conductor. This element is suitable for attachment to a microstrip or other feed circuit. The radiation element includes a folded dipole portion, a balanced transmission line portion and may include a balun portion. These various portions are formed by providing an appropriately shaped slot or aperture in the thin conductor.

    摘要翻译: 一体式阵列天线折叠偶极辐射元件由宽而薄的导体形成。 该元件适用于连接到微带或其他馈电电路。 辐射元件包括折叠偶极部分,平衡传输线部分,并且可以包括平衡 - 不平衡转换部分。 这些各种部分通过在薄导体中提供适当形状的槽或孔而形成。

    Phase equalizer in microwave transmission line
    4.
    发明授权
    Phase equalizer in microwave transmission line 失效
    微波传输线相位均衡器

    公开(公告)号:US4270104A

    公开(公告)日:1981-05-26

    申请号:US96823

    申请日:1979-11-23

    IPC分类号: H01P1/203 H01P9/00 H01P1/20

    CPC分类号: H01P1/20327 H01P9/003

    摘要: A resonant circuit phase equalizer includes two quarter-wavelength-long strip conductors extending in parallel from adjacent ends of respective input and output strip conductors of a microwave stripline transmission line. A fixed MIS direct-current-blocking and radio-frequency tuning capacitor is connected across the remote ends of the quarter-wave strip conductors. A variable varactor capacitor is connected across the near ends of the quarter-wave strip conductors. A variable direct-current bias voltage is applied through radio frequency choke conductors to the varactor to vary the capacitance thereof and the center frequency tuning of the equalizer.

    摘要翻译: 谐振电路相位均衡器包括从微波带状线传输线的相应输入和输出条形导体的相邻端并行延伸的两个四分之一波长长的带状导体。 固定的MIS直流阻塞和射频调谐电容器连接在四分之一波导条的导体的远端。 可变变容二极管电容器连接在四分之一波导条的导体的近端。 通过射频扼流圈导体将可变直流偏置电压施加到变容二极管,以改变其电容和均衡器的中心频率调谐。

    Adjustable passband filter
    5.
    发明授权
    Adjustable passband filter 失效
    可调式通带滤波器

    公开(公告)号:US4250475A

    公开(公告)日:1981-02-10

    申请号:US35070

    申请日:1979-05-01

    CPC分类号: H01P1/20381 H01P1/209

    摘要: An adjustable passband filter comprises at least one reentrant section in shunt with a transmission line, which section can be electronically switched between different conditions. The reentrant section, when in at least one condition acts, to reduce the band of frequencies passed by the transmission line by increasing the effective capacitance of the filter and when in another condition, operates as an open circuit, whereby the filter exhibits a broader passband.

    摘要翻译: 可调节通带滤波器包括至少一个与传输线分流的折返部分,该部分可以在不同条件之间进行电子切换。 当至少一个条件作用时,折返部分通过增加滤波器的有效电容来减小由传输线传递的频率带,并且当在另一个条件下作为开路工作时,滤波器表现出更宽的通带 。

    Monolithic reflection phase shifter
    6.
    发明授权
    Monolithic reflection phase shifter 失效
    单片反射移相器

    公开(公告)号:US4450419A

    公开(公告)日:1984-05-22

    申请号:US428242

    申请日:1982-09-29

    IPC分类号: H01P1/185

    CPC分类号: H01P1/185

    摘要: A reflection phase shifter includes transmission-type fractional phase shifters and a reflection-type fractional phase shifter. The fractional phase shifters include PIN diodes and transforming sections for transmission line matching. Three fractional phase shifters provide 45-, 90-, and 180-degree delays. The individual fractional phase shifters are selectably "switched in" by the application of bias signals.

    摘要翻译: 反射相移器包括透射型分数移相器和反射型分数移相器。 分数移相器包括PIN二极管和用于传输线匹配的变换部分。 三个分数移相器提供45度,90度和180度的延迟。 各个分数移相器通过施加偏置信号可选地“切换”。

    Switching microwave integrated bridge T group delay equalizer
    7.
    发明授权
    Switching microwave integrated bridge T group delay equalizer 失效
    开关微波集成桥T组延时均衡器

    公开(公告)号:US4443772A

    公开(公告)日:1984-04-17

    申请号:US329338

    申请日:1981-12-10

    IPC分类号: H01P9/00 H01P1/20

    CPC分类号: H01P9/003

    摘要: A microwave group delay equalizer in microstrip form comprises a dielectric substrate having a ground plane on one surface and on the other surface two conductive strips oriented end to end and spaced apart by a narrow gap and connected together by a relatively narrow inductive conductive strip of substantially greater length than the gap between the first two strips. A dielectric layer overlies the adjacent ends of the first two conductor strips. A fourth conductor strip is disposed over the dielectric layer to provide capacitive coupling between the first and second conductors. The fourth conductor is connected to a grounded capacitor by a fifth relatively narrow inductive conductive strip.

    摘要翻译: 微带形式的微波群延迟均衡器包括介电衬底,其在一个表面上具有接地平面,而在另一个表面上具有两个导电条,两个导电条的端部到端部定位并且间隔开窄的间隙,并通过相对较窄的感应导电条连接在一起, 比前两条之间的间隙长。 介电层覆盖在前两条导体条的相邻端。 第四导体条设置在介电层上方,以提供第一和第二导体之间的电容耦合。 第四导体通过第五相对较窄的感应导电带连接到接地的电容器。

    Space-loaded coaxial coupler
    8.
    发明授权
    Space-loaded coaxial coupler 失效
    空载同轴耦合器

    公开(公告)号:US4369415A

    公开(公告)日:1983-01-18

    申请号:US232690

    申请日:1981-02-09

    IPC分类号: H01P5/12

    CPC分类号: H01P5/12

    摘要: A coaxial transmission line power divider structure includes an inner conductor split to form branch legs. The split portions of the inner conductor are arranged to define a hollow interior. An odd mode power dissipation element is disposed within the hollow. A thermally conducting element carries heat from the power dissipation element to the outer conductor.

    摘要翻译: 同轴传输线功率分配器结构包括内部导体分裂以形成分支腿。 内导体的分割部分被布置成限定中空的内部。 奇模式功率耗散元件设置在中空部内。 导热元件将热量从功率耗散元件传递到外导体。

    High power, low frequency, electronically adjustable attenuator
    9.
    发明授权
    High power, low frequency, electronically adjustable attenuator 失效
    大功率,低频,电子可调衰减器

    公开(公告)号:US4378536A

    公开(公告)日:1983-03-29

    申请号:US272220

    申请日:1981-06-09

    IPC分类号: H03H7/25 H03H7/24

    CPC分类号: H03H7/255

    摘要: An attenuator for high-power, low frequency RF signals including two .pi.-section low-pass filters is well matched to the transmission line characteristic impedance. Each of the four loss branches of the attenuator includes a power resistor and a PIN diode. The attenuator is made electronically variable by controlling the dc bias across the PIN diodes, which respond to increased voltage by exhibiting lowered resistance. At any setting of the dc bias, only a fraction of the attenuated RF power is dissipated by the diodes. When the bias voltage is tuned for high attenuation, virtually all of the power is dissipated by the power resistors.

    摘要翻译: 用于大功率,低频RF信号的衰减器包括两个pi段低通滤波器,与传输线特性阻抗匹配良好。 衰减器的四个损耗分支中的每一个都包括一个功率电阻和一个PIN二极管。 通过控制PIN二极管上的直流偏置,衰减器可电子变化,这通过显示降低的电阻来响应增加的电压。 在任何直流偏置设置下,衰减的RF功率的一小部分由二极管消散。 当偏置电压被调整为高衰减时,实际上所有的功率都被功率电阻耗散。

    Phase shifter
    10.
    发明授权
    Phase shifter 失效
    移相器

    公开(公告)号:US4275366A

    公开(公告)日:1981-06-23

    申请号:US68503

    申请日:1979-08-22

    IPC分类号: H01P1/185 H01P3/08

    CPC分类号: H01P1/185

    摘要: A phase shifter comprises a transmission line having a second terminated transmission line extending therefrom. A single diode is coupled across the second transmission line. The diode is switched between two operating states which changes the effective electrical length of the second transmission line and introduces a phase shift to a signal propagating in the first transmission line.

    摘要翻译: 移相器包括具有从其延伸的第二端接传输线的传输线。 单个二极管耦合在第二传输线上。 二极管在两个操​​作状态之间切换,这两个操作状态改变了第二传输线的有效电长度,并将相移引入到在第一传输线中传播的信号。