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    Yig resonator microstrip coupling device
    1.
    发明授权
    Yig resonator microstrip coupling device 失效
    YIG谐振器微波耦合器件

    公开(公告)号：US3611197A

    公开(公告)日：1971-10-05

    申请号：US3611197D

    申请日：1969-12-31

    Applicant: WESTINGHOUSE ELECTRIC CORP

    Inventor： MOORE ROBERT A ,  NELSON THEODORE M ,  FLAHERTY JAMES M

    IPC: H01P1/213 ,  H01P1/218 ,  H01P

    CPC classification number: H01P1/218 ,  H01P1/2135

    Abstract: A microstrip manifold providing a plurality of frequency selective outputs from a single input signal including a common input microstrip transmission line terminated at one end and a plurality of output microstrip transmission lines disposed substantially normal to the input transmission line and coupled thereto by means of respective yttrium iron garnet (YIG) sphere resonators, each being tuned to a predetermined resonant frequency by a separate magnetic field to provide isolation between each of the output transmission lines. Additionally, each of the output transmission lines are terminated at a short circuit in proximity to the respective YIG sphere. The input conductor is not grounded at the YIG spheres but is terminated at the end of the line.

    Field shaping for magnetoelastic delay lines
    2.
    发明授权
    Field shaping for magnetoelastic delay lines 失效
    磁性延迟线的场形

    公开(公告)号：US3593215A

    公开(公告)日：1971-07-13

    申请号：US3593215D

    申请日：1969-04-01

    Applicant: WESTINGHOUSE ELECTRIC CORP

    Inventor： MOORE ROBERT A

    IPC: H03H9/40 ,  H03H9/30

    CPC classification number: H03H9/40

    Abstract: Desired magnetic field shaping in a delay line for controlling its dispersive characteristics is achieved by placement of a ferrite material in intimate contact with a high Q magnetic insulating (YIG) material. Low loss is achieved by maintaining the RF coupling circuit in intimate contact with the crystal end and having the dispersive characteristic of the line controlled by ferrite magnetic field shaping material and the RF circuit interpenetrate. Dispersive characteristics of magnetoelastic delay lines are thus controlled through field shaping.

    Broadband unidirectional surface wave transducer
    4.
    发明授权
    Broadband unidirectional surface wave transducer 失效
    宽带无源波导传感器

    公开(公告)号：US3866154A

    公开(公告)日：1975-02-11

    申请号：US42158573

    申请日：1973-12-03

    Applicant: WESTINGHOUSE ELECTRIC CORP

    Inventor： MOORE ROBERT A

    IPC: H03H9/145 ,  H03H9/02 ,  H03H9/26 ,  H03H9/30

    CPC classification number: H03H9/14508

    Abstract: The disclosure relates to a novel broadband surface wave acoustic transducer having unidirectional transduction characteristics and to surface wave acoustic devices employing the broadband unidirectional transducer. In the preferred embodiment, the transducer comprises an interdigital electrode arrangement having an electrically conductive common strip meandering through the interdigital spaces of the electrode arrangement. The interdigitally arranged electrodes are spaced in accordance with a repeating series (n + 1/4) lambda , (n + 3/4) lambda , (n + 1/4) lambda , (n + 3/4) lambda . . . , where n is an integer and lambda is an acoustic wavelength. The meandering strip provides a common terminal for the interdigital electrodes so that signals 90* out of phase may be applied between the electrodes and the common terminal.

    Abstract translation: 本公开涉及具有单向换能特性的新型宽带表面波声换能器和采用宽带单向换能器的表面波声学装置。 在优选实施例中，换能器包括叉指电极装置，其具有通过电极装置的叉指间隙曲折的导电公共条。 根据重复序列（n + 1/4）λ，（n + 3/4）λ，（n + 1/4）λ，（n + 3/4）λ，间隔布置的电极间隔开。 。 。 ，其中n是整数，λ是声波长。 曲折条提供了叉指电极的公共端子，使得90°异相之间的信号可以施加在电极和公共端子之间。

    Integrated digital transducer for variable microwave delay line
    5.
    发明授权
    Integrated digital transducer for variable microwave delay line 失效
    用于可变微波延迟线的集成数字传感器

    公开(公告)号：US3611203A

    公开(公告)日：1971-10-05

    申请号：US3611203D

    申请日：1969-04-16

    Applicant: WESTINGHOUSE ELECTRIC CORP

    Inventor： COOPER HERBERT W ,  MOORE ROBERT A

    IPC: H03H9/42 ,  H03H9/30

    CPC classification number: H03H9/42

    Abstract: The storage of digital, multiple-tap, variable delay pulse compression and coding is carried out directly at microwave frequencies. Nondispersive acoustical delay crystals are employed with surface wave acoustical grating transducers having a periodic equivalent to an acoustic wavelength. An arrangement employing a plurality of channels is disclosed. In another arrangement, a series of aligned transducers is used to obtain variable delays.

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