Electromagnetic wave, reflective type, low cost, active proximity sensor
for harsh environments
    2.
    发明授权
    Electromagnetic wave, reflective type, low cost, active proximity sensor for harsh environments 失效
    电磁波,反射型,低成本,有源接近传感器适用于恶劣环境

    公开(公告)号:US5905380A

    公开(公告)日:1999-05-18

    申请号:US633191

    申请日:1996-04-26

    摘要: An electromagnetic, reflective type, active proximity sensor includes a transmitter, the transmitter including a voltage controlled oscillator circuit, a transmitter circular waveguide and a transmitter polarization circuit. The voltage controlled oscillator circuit generates an output signal which is modulated such that the frequency of the output signal varies over time between a range of frequencies. The frequency varying, output signal is provided to the transmitter circular waveguide and propagated to the transmitter polarization circuit where it is circularly polarized in a first circular direction. The circularly polarized, frequency varying, output signal is radiated by the transmitter to the target, where it strikes the target and reflects back toward the sensor to form return signals. The return signals, upon being reflected, rotate in a second circular direction opposite to the first circular direction. The return signals also respectively exhibit one of the frequencies corresponding to the range of frequencies associated with the circularly polarized, frequency varying, output signal. The active proximity sensor also includes a receiver, the receiver including a receiver circular waveguide, a receiver polarization circuit and a detector. The receiver circular waveguide receives the return signals reflected from the target and the receiver polarization circuit circularly de-polarizes the return signals. Next, the detector receives and averages the return signals and generates an output signal which corresponds to the return signals. The active proximity sensor also includes an analog processor/driver circuit for processing the output signal provided by the detector.

    摘要翻译: 电磁反射型有源接近传感器包括发射器,发射器包括压控振荡器电路,发射器圆形波导和发射极偏振电路。 压控振荡器电路产生被调制的输出信号,使得输出信号的频率随着频率范围内的时间而变化。 频率变化的输出信号被提供给发射器圆形波导并传播到发射极化电路,其中它在第一圆周方向上被圆偏振。 圆偏振变频输出信号被发射机辐射到目标,在那里它撞击目标并反射回传感器以形成返回信号。 反射信号在与第一圆周方向相反的第二圆周方向上旋转。 返回信号还分别表现出对应于与圆偏振,变频输出信号相关联的频率范围的频率之一。 有源接近传感器还包括接收器,接收器包括接收器圆形波导,接收器极化电路和检测器。 接收器圆形波导接收从目标反射的返回信号,并且接收器偏振电路对返回信号进行循环去极化。 接下来,检测器接收并平均返回信号并产生对应于返回信号的输出信号。 主动接近传感器还包括用于处理由检测器提供的输出信号的模拟处理器/驱动器电路。

    Apparatus for the interconnection of radio frequency (RF) monolithic
microwave integrated circuits
    3.
    发明授权
    Apparatus for the interconnection of radio frequency (RF) monolithic microwave integrated circuits 失效
    用于射频(RF)单片微波集成电路互连的装置

    公开(公告)号:US5402088A

    公开(公告)日:1995-03-28

    申请号:US985570

    申请日:1992-12-03

    摘要: A coaxial-to-coplanar waveguide connector is used for interconnecting stripline compatible devices utilizing coaxial cable. The connector is formed at the end of a length of coaxial cable embedded within a circuit board. The connector generally has a substantially semi-circular connection section. The connection section includes a conductor partly surrounded by an electrically insulative dielectric which is partly surrounded by a shield. An electrically conductive sheet is used to couple the shield to a ground plane of the circuit board. Electrically conductive ribbon is connect the conductor to a stripline compatible device. The coaxial-to-coplanar waveguide connector may be fabricated by coating a dielectric board with an adhesive material and then routing a length of miniature coaxial cable in the adhesive. Conductive material and dielectric material are consecutively laid upon the dielectric cable board. A portion of the board including a section of miniature coaxial cable is milled so as to remove a top portion of the cable. An electrically conductive material is coupled to the coaxial shield in order to connect the shield to a ground plane of the circuit board and the stripline compatible device. Furthermore, an additional electrically conductive ribbon is operatively connected from the conductor to the stripline compatible device.

    摘要翻译: 同轴对共面波导连接器用于使用同轴电缆互连带状线兼容设备。 连接器形成在嵌入电路板的同轴电缆长度的端部。 连接器通常具有基本上半圆形的连接部分。 连接部分包括部分被电绝缘电介质包围的导体,该电绝缘电介质被屏蔽部分地包围。 导电片用于将屏蔽件耦合到电路板的接地平面。 导电带将导体连接到带状线兼容设备。 同轴对共面波导连接器可以通过用粘合剂材料涂覆介电板并且然后将一定数量的微型同轴电缆布置在粘合剂中来制造。 导电材料和电介质材料连续铺设在电介质电缆板上。 包括一段微型同轴电缆的板的一部分被铣削以去除电缆的顶部。 导电材料耦合到同轴屏蔽,以将屏蔽件连接到电路板和带状线兼容装置的接地平面。 此外,附加的导电带从导体可操作地连接到带状线兼容装置。

    Double balanced mixing
    4.
    发明授权
    Double balanced mixing 失效
    双重平衡混合

    公开(公告)号:US4947062A

    公开(公告)日:1990-08-07

    申请号:US196040

    申请日:1988-05-19

    IPC分类号: H03D7/12 H03D7/14 H03D9/06

    摘要: A double balanced mixer comprising a plurality of transistors, each transistor being adapted to operate in the microwave frequency range and including an input electrode, a control electrode, and an output electrode, the transistors being arranged in a ring configuration with the control electrodes of a first pair of the transistors being interconnected and the control electrodes of a second pair of the transistors being interconnected; circuitry for coupling an input signal having a frequency within a predetermined frequency band in the microwave frequency range to the input electrodes of the ring of transistors and for producing a 180.degree. relative phase difference between the input signal applied to the input electrodes of first transistors of the first and second pairs of transistors and the input signal applied to the input electrodes of second transistors of the first and second pairs of transistors; circuitry for coupling a local oscillator signal to the control electrodes of the ring of transistors and for producing a 180.degree. relative phase difference between the local oscillator signal applied to the control electrodes of the first pair of transistors and the local oscillator signal applied to the control electrodes of the second pair of transistors; and circuitry for biasing the plurality of transistors in their linear operating regions; whereby the ring of transistors produces at the output electrodes an output signal having a frequency which is a function of the frequencies of the input signal and the local oscillator signal for input signals within the predetermined frequency band.

    摘要翻译: 一种双平衡混频器,包括多个晶体管,每个晶体管适于在微波频率范围内工作,并且包括输入电极,控制电极和输出电极,所述晶体管布置成环形结构,其中控制电极为 第一对晶体管互连,并且第二对晶体管的控制电极相互连接; 用于将具有在微波频率范围内的预定频带内的频率的输入信号耦合到晶体管环的输入电极的电路,并且用于在施加到第一晶体管的输入电极的输入信号之间产生180°的相对相位差 所述第一和第二对晶体管和所述输入信号施加到所述第一和第二对晶体管的第二晶体管的输入电极; 用于将本地振荡器信号耦合到晶体管环的控制电极并且用于产生施加到第一对晶体管的控制电极的本地振荡器信号与施加到控制器的本地振荡器信号之间的180°相对相位差的电路 第二对晶体管的电极; 以及用于在其线性操作区域中偏置所述多个晶体管的电路; 由此晶体管在输出电极处产生具有与预定频带内的输入信号相关的输入信号和本地振荡器信号的频率的函数的频率的输出信号。

    Method and apparatus for the interconnection of radio frequency (RF)
monolithic microwave integrated circuits
    5.
    发明授权
    Method and apparatus for the interconnection of radio frequency (RF) monolithic microwave integrated circuits 失效
    用于射频(RF)单片微波集成电路互连的方法和装置

    公开(公告)号:US5517747A

    公开(公告)日:1996-05-21

    申请号:US365676

    申请日:1994-12-29

    摘要: A coaxial-to-coplanar waveguide connector is used for interconnecting stripline compatible devices utilizing coaxial cable. The connector is formed at the end of a length of coaxial cable embedded within a circuit board. The connector generally has a substantially semi-circular connection section. The connection section includes a conductor partly surrounded by an electrically insulative dielectric which is partly surrounded by a shield. An electrically conductive sheet is used to couple the shield to a ground plane of the circuit board. Electrically conductive ribbon is connect the conductor to a stripline compatible device. The coaxial-to-coplanar waveguide connector may be fabricated by coating a dielectric board with an adhesive material and then routing a length of miniature coaxial cable in the adhesive. Conductive material and dielectric material are consecutively laid upon the dielectric cable board. A portion of the board including a section of miniature coaxial cable is milled so as to remove a top portion of the cable. An electrically conductive material is coupled to the coaxial shield in order to connect the shield to a ground plane of the circuit board and the stripline compatible device. Furthermore, an additional electrically conductive ribbon is operatively connected from the conductor to the stripline compatible device.

    摘要翻译: 同轴对共面波导连接器用于使用同轴电缆互连带状线兼容设备。 连接器形成在嵌入电路板的同轴电缆长度的端部。 连接器通常具有基本上半圆形的连接部分。 连接部分包括部分被电绝缘电介质包围的导体,该电绝缘电介质被屏蔽部分地包围。 导电片用于将屏蔽件耦合到电路板的接地平面。 导电带将导体连接到带状线兼容设备。 同轴对共面波导连接器可以通过用粘合剂材料涂覆介电板并且然后将一定数量的微型同轴电缆布置在粘合剂中来制造。 导电材料和电介质材料连续铺设在电介质电缆板上。 包括一段微型同轴电缆的板的一部分被铣削以去除电缆的顶部。 导电材料耦合到同轴屏蔽,以将屏蔽件连接到电路板和带状线兼容装置的接地平面。 此外,附加的导电带从导体可操作地连接到带状线兼容装置。

    Ultraminiature low loss coaxial delay line
    7.
    发明授权
    Ultraminiature low loss coaxial delay line 失效
    超低速同轴延迟线

    公开(公告)号:US5119049A

    公开(公告)日:1992-06-02

    申请号:US685375

    申请日:1991-04-12

    IPC分类号: H01P9/00

    CPC分类号: H01P9/00

    摘要: An ultraminiature delay line assembly for use with an electronic system. The delay line is utilized for producing and introducing a known controllable time delay to an electrical signal without the accompanying signal attenuation normally associated with traditional coaxial delay lines. The ultraminiature delay line utilizes miniature coaxial transmission cable which is smaller in diameter than the coaxial transmission cable traditionally used. An ultraminiature delay line includes a thin substrate supporting base plate. Mounted on the thin substrate supporting base plate are numerous concentrically wound miniature coaxial cable assemblies. Coupled to the middle of each miniature coaxial cable assembly is a signal amplifying device having variable programmable gain which offsets signal attenuation caused by the length of miniature coaxial cable. Signal switching devices may be included to route the delayed signal from one miniature coaxial cable assembly to another miniature coaxial cable assembly or the delayed signal may be transferred to an output signal connector. Each coaxial cable assembly may be configured to provide different delays. Various combinations of coaxial cable assemblies may be selected to provide various, numerous different total delays.

    摘要翻译: 一种用于电子系统的超微型延迟线组件。 延迟线用于产生和引入对电信号的已知可控时延,而不伴随传统的同轴延迟线通常相关的信号衰减。 超微型延迟线采用比传统使用的同轴传输电缆的直径小的微型同轴传输电缆。 超薄延迟线包括薄基板支撑基板。 安装在薄基板支撑底板上的是许多同心圆形的微型同轴电缆组件。 耦合到每个微型同轴电缆组件的中间的是具有可变可编程增益的信号放大装置,其偏移由微型同轴电缆的长度引起的信号衰减。 可以包括信号切换装置以将延迟的信号从一个微型同轴电缆组件路由到另一个微型同轴电缆组件,或者延迟的信号可以被传送到输出信号连接器。 每个同轴电缆组件可被配置成提供不同的延迟。 可以选择同轴电缆组件的各种组合来提供各种不同的总延迟。