Broadband temperature compensated microwave cavity oscillator
    1.
    发明授权
    Broadband temperature compensated microwave cavity oscillator 失效
    宽带温度补偿微波腔振荡器

    公开(公告)号:US4766398A

    公开(公告)日:1988-08-23

    申请号:US44186

    申请日:1987-04-30

    CPC classification number: H03B7/14 H03B2201/015 H03B5/04

    Abstract: This microwave oscillator in one embodiment has two tuning rods (16 and 18) configured to extend within a resonant cavity (12). One of these tuning rods (18) attaches to a shaft (19) that is affixed at one end and that is comprised of a material having a thermal coefficient of expansion that is different from the material comprising the housing (11) that forms the cavity (12). As a result, movement of the tuning rods (16 and 18) will vary as temperature varies, with a resulting stability in the frequency of oscillation.

    Abstract translation: 在一个实施例中,该微波振荡器具有被配置为在谐振腔(12)内延伸的两个调谐杆(16和18)。 这些调音杆(18)中的一个附接到轴(19),该轴(19)固定在一端,并且由具有与包括形成空腔的壳体(11)的材料不同的热膨胀系数的材料组成 (12)。 结果,调节杆(16和18)的移动将随温度变化而变化,从而产生振荡频率的稳定性。

    Cableless switching element for waveguide having low loss and fast
switching speed
    2.
    发明授权
    Cableless switching element for waveguide having low loss and fast switching speed 失效
    用于波导的无线开关元件具有低损耗和快速的开关速度

    公开(公告)号:US4780692A

    公开(公告)日:1988-10-25

    申请号:US45338

    申请日:1987-05-04

    CPC classification number: H01P1/12

    Abstract: An improved switching arrangement 10 for waveguide is disclosed which comprises, in combination, a coaxial switch 12 and a unified, multi-port, waveguide interface 14. The coaxial switch 12 has coaxial connectors of a first type (12a, 12b, 12c) mounted in a parallel pattern with a preestablished center-to-center spacing. The waveguide interface 14 includes flanges (14a, 14b, 14c), and is preferably formed as a waveguide housing having a transition plate portion and a cover plate portion. Each port of the unified waveguide interface includes internal waveguide-to-coax transitions for coupling to a respective external connector of a second type. The external coaxial connectors (16a, 16b, 16c) are configured in a parallel pattern with center-to-center spacings equal to the preestablished center-to-center spacings of the coaxial switch connectors (12a, 12b, 12c) such that these connectors mate directly with those of the unified waveguide interface. By so doing, intervening coaxial cables or adaptors are eliminated and relatively low insertion loss and fast switching speed are exhibited over a relatively broad bandwidth.

    Abstract translation: 公开了一种用于波导的改进的开关装置10,其组合包括同轴开关12和统一的多端口波导接口14.同轴开关12具有安装在第一类型(12a,12b,12c)上的同轴连接器 具有预先建立的中心到中心间隔的平行图案。 波导界面14包括凸缘(14a,14b,14c),并且优选地形成为具有过渡板部分和盖板部分的波导壳体。 统一波导接口的每个端口包括用于耦合到第二类型的相应外部连接器的内部波导到同轴电缆跃迁。 外部同轴连接器(16a,16b,16c)被构造为具有等于同轴开关连接器(12a,12b,12c)的预先设定的中心到中心间隔的中心到中心间隔的平行图案,使得这些连接器 直接与统一波导接口的配合。 通过这样做,消除了插入式同轴电缆或适配器,并且在相对宽的带宽上显示相对低的插入损耗和快速的开关速度。

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