TUNABLE EVANESCENT-MODE CAVITY FILTER
    3.
    发明申请
    TUNABLE EVANESCENT-MODE CAVITY FILTER 有权
    可变模式空气过滤器

    公开(公告)号:US20110241802A1

    公开(公告)日:2011-10-06

    申请号:US13122370

    申请日:2009-10-03

    IPC分类号: H01P1/207

    CPC分类号: H01P1/219 H01P7/06 H01P11/007

    摘要: A tunable filter having an electronically tunable center frequency and dynamic bandwidth control over a large tuning range. High-Q continuously tunable evanescent-mode cavity resonators and filters using reliable RF MEMS actuators. One embodiment is a 3.4-6.2 GHz (1.8:1 tuning ratio) continuously tunable electrostatic MEMS resonator with quality factor of 460-530, with a volume of 18×30×4 mm including the actuation scheme and biasing lines. A tunable resonators is also disclosed with a 2.8:1 (5.0-1.9 GHz) tuning ratio, and Q of 300-650.

    摘要翻译: 一种可调谐滤波器,具有电子可调谐的中心频率和大调谐范围内的动态带宽控制。 使用可靠的RF MEMS执行器的高Q连续可调ev逝腔谐振器和滤波器。 一个实施例是质量因子为460-530的3.4-6.2GHz(1.8:1调谐比)连续可调静电MEMS谐振器,体积为18×30×4mm,包括致动方案和偏置线。 还公开了可调谐谐振器,具有2.8:1(5.0-1.9GHz)调谐比,Q为300-650。

    Trans-grade communication network
    7.
    发明授权
    Trans-grade communication network 有权
    跨级通信网络

    公开(公告)号:US08077101B1

    公开(公告)日:2011-12-13

    申请号:US11672282

    申请日:2007-02-07

    IPC分类号: H01Q1/04

    CPC分类号: H01Q13/10 H01Q1/04 H01Q1/44

    摘要: Methods and apparatus that provide grade-level RF transceivers for use in trans-grade wireless communication networks. The methods involve incorporating slot antennas into grade-level opening covers, such as manhole covers, to provide built-in antennas for transceivers that may be connected by transmission lines. The grade-level transceivers use coupling mechanisms to connect transceivers to the slot antennas by way of transmission feed lines. Multi-slot grade-level transceivers use switching mechanisms to switch between multiple slot antennas. Certain embodiments may also include adaptable RF circuitry. Trans-grade wireless communication networks use these grade-level transceivers to communicate between below-ground and above-ground portions of the network, which may be used in underground utility systems such as combined sewer systems.

    摘要翻译: 提供用于跨级无线通信网络的级别级RF收发器的方法和装置。 这些方法包括将缝隙天线结合到等级开放盖(例如人孔盖)中,以为可以通过传输线连接的收发器提供内置天线。 等级收发器使用耦合机制通过传输馈线将收发器连接到时隙天线。 多插槽级别收发器使用切换机制在多个时隙天线之间切换。 某些实施例还可以包括适应性RF电路。 跨级无线通信网络使用这些等级级收发器在网络的地下和地上部分之间进行通信,这可以在地下公用事业系统中使用,例如组合式下水道系统。

    Tunable evanescent-mode cavity filter
    9.
    发明授权
    Tunable evanescent-mode cavity filter 有权
    可调ev逝模式滤波器

    公开(公告)号:US09024709B2

    公开(公告)日:2015-05-05

    申请号:US13122370

    申请日:2009-10-03

    IPC分类号: H01P1/219 H01P7/06 H01P11/00

    CPC分类号: H01P1/219 H01P7/06 H01P11/007

    摘要: A tunable filter having an electronically tunable center frequency and dynamic bandwidth control over a large tuning range. High-Q continuously tunable evanescent-mode cavity resonators and filters using reliable RF MEMS actuators. One embodiment is a 3.4-6.2 GHz (1.8:1 tuning ratio) continuously tunable electrostatic MEMS resonator with quality factor of 460-530, with a volume of 18×30×4 mm including the actuation scheme and biasing lines. A tunable resonators is also disclosed with a 2.8:1 (5.0-1.9 GHz) tuning ratio, and Q of 300-650.

    摘要翻译: 一种可调谐滤波器,具有电子可调谐的中心频率和大调谐范围内的动态带宽控制。 使用可靠的RF MEMS执行器的高Q连续可调ev逝腔谐振器和滤波器。 一个实施例是质量因子为460-530的3.4-6.2GHz(1.8:1调谐比)连续可调静电MEMS谐振器,体积为18×30×4mm,包括致动方案和偏置线。 还公开了可调谐谐振器,具有2.8:1(5.0-1.9GHz)调谐比,Q为300-650。