Cavity resonator incorporating waveguide filter
    31.
    发明授权
    Cavity resonator incorporating waveguide filter 失效
    加入波导过滤器的CAVITY谐振器

    公开(公告)号:US5243618A

    公开(公告)日:1993-09-07

    申请号:US796153

    申请日:1991-11-22

    IPC分类号: H01P7/06 H01S3/09 H01S3/30

    CPC分类号: H01S3/0903 H01P7/06

    摘要: A waveguide filter (22,24) is incorporated into a cavity resonator (20) for a free-electron laser or the like by coating a material layer (24) on the inner peripheral surface of a hollow waveguide member (22). A high pass filter configuration is provided when the conductivity of the material layer (24) is higher than that of the waveguide member (22), such that electromagnetic signals having wavelengths longer than the skin depth of the material layer (24) pass into and are affected by the lower conductivity waveguide member (22). Reversing the conductivities produces a low pass filter configuration in which signals having wavelengths shorter than the skin depth are affected by the material layer (24). A bandpass filter configuration is provided by adding an additional material layer (32) of low conductivity to a high pass filter, whereas a band exclusion filter configuration is produced by adding an additional material layer (32) of high conductivity to a low pass filter.

    摘要翻译: 通过在中空波导构件(22)的内周面上涂覆材料层(24),将波导滤波器(22,24)结合到用于自由电子激光器等的空腔谐振器(20)中。 当材料层(24)的导电率高于波导构件(22)的电导率时,提供高通滤波器构造,使得具有比材料层(24)的趋肤深度长的波长的电磁信号通过 受下导电波导部件(22)的影响。 反向电导产生低通滤波器配置,其中波长比皮肤深度短的信号受到材料层(24)的影响。 通过向高通滤波器添加低电导率的附加材料层(32)来提供带通滤波器配置,而通过向低通滤波器添加高导电率的附加材料层(32)来产生带阻滤波器构造。

    Conformal surface wave feed
    33.
    发明授权
    Conformal surface wave feed 有权
    保形表面波馈电

    公开(公告)号:US08994609B2

    公开(公告)日:2015-03-31

    申请号:US13242102

    申请日:2011-09-23

    IPC分类号: H01Q15/02 H01Q13/20 H01Q13/26

    CPC分类号: H01Q13/20 H01Q13/26

    摘要: A transmission line feed for a surface wave medium having a dielectric substrate with an array of electrically conductive patches formed thereon. The transmission line feed includes a microstrip substrate, the microstrip substrate having a first permittivity which is lower than a second permittivity of the dielectric substrate of the surface wave medium, the microstrip substrate abutting against the dielectric substrate of the surface wave medium; a tapered microstrip disposed on the microstrip substrate, the tapered microstrip tapering from a relatively narrow end to a relatively wide end, the relative wide end terminating where the microstrip substrate abuts against the surface wave substrate; and an adapter for coupling a transmission line to the relatively narrow end of the tapered microstrip.

    摘要翻译: 一种用于表面波介质的传输线馈电,其具有在其上形成有导电片的阵列的电介质基片。 传输线馈送包括微带基片,微带基片的第一介电常数低于表面波介质介电基片的第二介电常数,微带基片与表面波介质的电介质基片相接; 设置在微带基板上的锥形微带,锥形微带从相对较窄的端部逐渐变细到相对宽的端部,相对较宽的端部终止,其中微带基板抵靠表面波基板; 以及用于将传输线耦合到锥形微带的相对较窄端的适配器。

    DIELECTRIC ARTIFICIAL IMPEDANCE SURFACE ANTENNA
    35.
    发明申请
    DIELECTRIC ARTIFICIAL IMPEDANCE SURFACE ANTENNA 有权
    电介质人造阻抗表面天线

    公开(公告)号:US20130249737A1

    公开(公告)日:2013-09-26

    申请号:US13427682

    申请日:2012-03-22

    IPC分类号: H01Q1/36 H01P11/00

    摘要: A dielectric artificial impedance surface antenna (DAISA) including a dielectric with a thickness, the dielectric thickness varying to provide a modulated impedance to a signal traversing the dielectric, the dielectric having a first surface, and a second surface opposite the first surface.

    摘要翻译: 一种电介质人造阻抗表面天线(DAISA),包括具有厚度的电介质,所述电介质厚度发生变化,以向穿过所述电介质的信号提供调制阻抗,所述电介质具有第一表面,以及与所述第一表面相对的第二表面。

    Electrically resistive coating for remediation (regeneration) of a diesel particulate filter and method
    37.
    发明授权
    Electrically resistive coating for remediation (regeneration) of a diesel particulate filter and method 失效
    用于柴油机微粒过滤器的修复(再生)的电阻涂层和方法

    公开(公告)号:US08112989B1

    公开(公告)日:2012-02-14

    申请号:US12178520

    申请日:2008-07-23

    IPC分类号: F01N3/10 B01D50/00

    摘要: A resistively heated diesel particulate filter (DPF). The resistively heated DPF includes a DPF having an inlet surface and at least one resistive coating on the inlet surface. The at least one resistive coating is configured to substantially maintain its resistance in an operating range of the DPF. The at least one resistive coating has a first terminal and a second terminal for applying electrical power to resistively heat up the at least one resistive coating in order to increase the temperature of the DPF to a regeneration temperature. The at least one resistive coating includes metal and semiconductor constituents.

    摘要翻译: 一种电阻加热的柴油微粒过滤器(DPF)。 电阻加热的DPF包括具有入口表面的DPF和入口表面上的至少一个电阻涂层。 所述至少一个电阻涂层构造成在DPF的操作范围内基本保持其电阻。 至少一个电阻涂层具有第一端子和第二端子,用于施加电力以电阻加热至少一个电阻涂层,以便将DPF的温度增加到再生温度。 所述至少一个电阻涂层包括金属和半导体组分。

    Adaptive spectral surface
    38.
    发明授权
    Adaptive spectral surface 有权
    自适应光谱表面

    公开(公告)号:US08106850B1

    公开(公告)日:2012-01-31

    申请号:US11644245

    申请日:2006-12-21

    IPC分类号: H01Q15/23

    摘要: In various embodiments, an adaptive spectral surface is provided including an upper layer having a frequency selective surface, a lower layer being at least partially reflective, and an active dielectric material layer therebetween. The active dielectric material may include a dielectric material with an adjustable permittivity, permeability, or thickness. The active dielectric material may be a dielectric material adapted to change its dielectric constant in response to at an applied electric field, an applied magnetic field, or/and thermal stimulus. Some embodiments allow shifting of the resonance of the spectral absorptive/reflective emissions of the adaptive spectral surface. Some embodiments allow modification of the electromagnetic signature of an adaptive spectral surface apparatus.

    摘要翻译: 在各种实施例中,提供自适应光谱表面,包括具有频率选择表面的上层,下层至少部分反射的上层和其间的有源电介质材料层。 有源电介质材料可以包括具有可调的介电常数,磁导率或厚度的电介质材料。 有源绝缘材料可以是适于响应于施加的电场,施加的磁场或/和热刺激改变其介电常数的电介质材料。 一些实施例允许偏移自适应光谱表面的光谱吸收/反射发射的谐振。 一些实施例允许修改自适应频谱表面装置的电磁特征。

    Microwave receiver front-end assembly and array
    40.
    发明授权
    Microwave receiver front-end assembly and array 有权
    微波接收器前端组件和阵列

    公开(公告)号:US07835600B1

    公开(公告)日:2010-11-16

    申请号:US12176071

    申请日:2008-07-18

    IPC分类号: G02B6/00 G02F1/01 G02B6/34

    摘要: A method of and apparatus for modulating an optical carrier by an incident electromagnetic field. The electromagnetic field propagates in a dielectric-filled transverse electromagnetic waveguide, At least one slice of an electro-optic material is disposed in the dielectric-filled transverse electromagnetic waveguide, the electro-optic material in the dielectric-filled transverse electromagnetic waveguide having at least one optical waveguide therein which has at least a major portion thereof guiding light in a direction orthogonal with respect to a direction in which the dielectric-filled transverse electromagnetic waveguide guides the incident electromagnetic field. Light is caused to propagate in the at least one optical waveguide in the at least one slice of an electro-optic material in the dielectric-filled transverse electromagnetic waveguide for modulation by the incident electromagnetic field.

    摘要翻译: 一种通过入射电磁场调制光载波的方法和装置。 电磁场在介质填充的横向电磁波导中传播,至少一片电光材料设置在电介质填充的横向电磁波导中,电介质填充的横向电磁波导中的电光材料至少具有 其中一个光波导具有至少其主要部分,它在相对于介质填充的横向电磁波导引导入射电磁场的方向正交的方向上引导光。 导致光在电介质填充的横向电磁波导中的电光材料的至少一个切片中的至少一个光波导中传播,以通过入射电磁场进行调制。