Ultra-sensitive metal oxide gas sensor and fabrication method thereof
    51.
    发明申请
    Ultra-sensitive metal oxide gas sensor and fabrication method thereof 有权
    超敏感金属氧化物气体传感器及其制造方法

    公开(公告)号:US20070261959A1

    公开(公告)日:2007-11-15

    申请号:US11644121

    申请日:2006-12-22

    IPC分类号: B05D3/00 G01N27/26

    CPC分类号: G01N27/127

    摘要: A method for fabricating an ultra-sensitive metal oxide gas sensor is disclosed, which comprises the steps of spinning a mixture solution including a metal oxide precursor and a polymer onto a sensor electrode to form a metal oxide precursor-polymer composite fiber; thermally compressing or thermally pressurizing the composite fiber; and thermally treating the thermally compressed or thermally pressurized composite fiber to remove the polymer from the composite fiber. Since the gas sensor includes a macro pore between nanofibers and a meso pore between nano-rods and/or nano-grains, gas diffusion and surface area can be maximized. Also, the ultra-sensitive sensor having high stability in view of mechanical, thermal, and electrical aspects can be obtained through rapid increase of adhesion between the metal oxide thin layer and the sensor electrode.

    摘要翻译: 公开了一种用于制造超敏感金属氧化物气体传感器的方法,其包括将包含金属氧化物前体和聚合物的混合溶液旋转到传感器电极上以形成金属氧化物前体 - 聚合物复合纤维的步骤; 热压缩或热加压复合纤维; 并热处理热压缩或热加压的复合纤维以从复合纤维中除去聚合物。 由于气体传感器包括纳米纤维与纳米棒和/或纳米颗粒之间的中孔的宏观孔隙,所以气体扩散和表面积可以最大化。 此外,通过快速增加金属氧化物薄层和传感器电极之间的粘附力,可以获得机械,热和电学方面具有高稳定性的超灵敏传感器。

    Microstrip cross-coupled bandpass filter with asymmetric frequency characteristic
    53.
    发明申请
    Microstrip cross-coupled bandpass filter with asymmetric frequency characteristic 审中-公开
    具有非对称频率特性的微带交叉耦合带通滤波器

    公开(公告)号:US20050140473A1

    公开(公告)日:2005-06-30

    申请号:US10934672

    申请日:2004-09-03

    IPC分类号: H01P1/203

    CPC分类号: H01P1/203

    摘要: A microstrip cross coupling bandpass filter includes an input port, an input resonator, an output port, and an output resonator. The input port and the input resonator are electric-coupled, and the output port and the output resonator are electric-coupled. A cross coupling gap corresponding to the distance between the input and output resonators forms magnetic coupling. The bandpass filter further includes a cross coupling line electric-coupled with the input and output ports. The cross coupling gap generates an attenuation pole on the high side of a passband. The attenuation frequency of the attenuation pole can be varied with the distance of the cross coupling gap. The cross coupling line generates an attenuation pole on the high and low sides of the passband.

    摘要翻译: 微带交叉耦合带通滤波器包括输入端口,输入谐振器,输出端口和输出谐振器。 输入端口和输入谐振器是电耦合的,输出端口和输出谐振器是电耦合的。 对应于输入和输出谐振器之间的距离的交叉耦合间隙形成磁耦合。 带通滤波器还包括与输入和输出端口电耦合的交叉耦合线。 交叉耦合间隙在通带的高侧产生衰减极。 衰减极的衰减频率可以随着交叉耦合间隙的距离而变化。 交叉耦合线在通带的高低侧产生衰减极。

    Magnetostatic wave filter
    54.
    发明授权
    Magnetostatic wave filter 失效
    静电波滤波器

    公开(公告)号:US06630873B2

    公开(公告)日:2003-10-07

    申请号:US09871761

    申请日:2001-05-31

    IPC分类号: H03H922

    CPC分类号: H03H2/001

    摘要: A magnetostatic wave filter that includes a ferromagnetic substance stacked on one side of a dielectric substrate, one side of which is grounded, and the filter includes an input section having an input transfer line and an input energy transformer for causing the energy transformation between an electromagnetic wave and a magnetostatic wave, and an output section having an output energy transformer for causing the energy transformation between the electromagnetic wave and the magnetostatic wave and an output transfer line. The width of exciting lines in the input energy transformer and the output energy transformer varies in a longitudinal direction, the filter includes a shield film formed of a grounded conductive film having holes through which a magnetic thin film can pass between the input section and said output section, to prevent coupling of an electromagnetic wave.

    摘要翻译: 一种静磁波滤波器,包括堆叠在电介质基板的一侧上的铁磁物质,其一侧接地,该滤波器包括具有输入传输线和输入能量变换器的输入部分,用于使电磁 波形和静磁波,以及具有输出能量变换器的输出部分,用于使得电磁波和静磁波之间的能量转换以及输出传输线。 输入能量变换器和输出能量变换器中的激励线的宽度在纵向方向上变化,滤波器包括由具有孔的接地导电膜形成的屏蔽膜,磁性薄膜可以在输入部和输出端之间通过该屏蔽膜 部分,以防止电磁波的耦合。