Dielectric filter including an adjusted inner electrode and a coupling
electrode being level with an open end of a molded member
    1.
    发明授权
    Dielectric filter including an adjusted inner electrode and a coupling electrode being level with an open end of a molded member 失效
    介质滤波器,包括经调节的内部电极和耦合电极与模制构件的开口端平齐

    公开(公告)号:US5828275A

    公开(公告)日:1998-10-27

    申请号:US603457

    申请日:1996-02-20

    IPC分类号: H01P1/205

    CPC分类号: H01P1/2056

    摘要: A dielectric filter is made of a dielectric material and includes a molded member of a pillar shape which has a hole formed from the top surface thereof toward the inside, an inner electrode formed so as to cover the inner circumferential surface of the hole; an outer electrode provided so as to cover the outer surface of the molded member except a prescribed region, and a coupling electrode provided at least in a portion of the prescribed region. An electrode area of a region of the inner electrode which faces against the coupling electrode is adjusted, thereby adjusting the coupling capacitance which is formed between the inner electrode and the coupling electrode.

    摘要翻译: 介质滤波器由电介质材料制成,并且包括具有从其顶表面朝向内侧形成的孔的柱形模制构件,形成为覆盖孔的内周表面的内电极; 设置成覆盖除了规定区域以外的模制构件的外表面的外部电极,以及至少设置在规定区域的一部分中的耦合电极。 内部电极的面对耦合电极的区域的电极面积被调节,从而调节在内部电极和耦合电极之间形成的耦合电容。

    Antenna duplexer
    2.
    发明授权
    Antenna duplexer 失效
    天线双工器

    公开(公告)号:US06085071A

    公开(公告)日:2000-07-04

    申请号:US41110

    申请日:1998-03-12

    IPC分类号: H01P1/213 H04B1/46

    CPC分类号: H01P1/213

    摘要: An antenna duplexer has a transmission input terminal, a receiving output terminal, an antenna terminal in which a transmission output terminal and a receiving input terminal are used in common, a transmission filter having at least one resonance element set between the transmission input terminal and the transmission output terminal and coupled by a coupling element, a receiving filter having at least one resonance element set between the receiving output terminal and said receiving input terminal and coupled by a coupling element, and an impedance variable element connected to the resonance element of the transmission filter and the resonance element of said receiving filter respectively in parallel, wherein the frequency transfer characteristic of the transmission filter and the frequency transfer characteristic of the receiving filter are controlled by applying control signals and thereby changing the impedances of the impedance variable element.

    摘要翻译: 天线双工器具有发送输入端子,接收输出端子,共同使用发送输出端子和接收输入端子的天线端子,发送滤波器具有设置在发送输入端子和发送输入端子之间的至少一个谐振元件 传输输出端子并通过耦合元件耦合;接收滤波器,具有设置在接收输出端子和所述接收输入端子之间并由耦合元件耦合的至少一个谐振元件,以及连接到变速器的谐振元件的阻抗可变元件 滤波器和所述接收滤波器的谐振元件分别并联,其中通过施加控制信号并由此改变阻抗可变元件的阻抗来控制发送滤波器的频率传递特性和接收滤波器的频率传递特性。

    Microwave stripline resonator including a dielectric substrate having a
depression
    3.
    发明授权
    Microwave stripline resonator including a dielectric substrate having a depression 失效
    微波条纹共振器,包括一个具有凹陷的介质基板

    公开(公告)号:US5162761A

    公开(公告)日:1992-11-10

    申请号:US727417

    申请日:1991-07-09

    IPC分类号: H01P7/08

    CPC分类号: H01P7/082 H01P7/084

    摘要: This invention relates to a compact and high performance microwave stripline resonator consisting of a dielectric substrate provided with a strip electrode and a depression coated with an electrode which is connected to an end of the strip electrode provided on one of the surfaces of the dielectric substrate and a grounding electrode provided on the other surface of the dielectric substrate, and the grounding electrode is connected to the other end of said strip electrode. With this dielectric resonator construction, the characteristic impedance of the strip electrode and the characteristic impedance of the electrode coated on the depression are made different. As a result of this, the length of microwave stripline can be shortened without sacrificing the Q of the resonator. This is highly effective to realize compact resonators.

    Separator for lead-acid battery
    4.
    发明授权
    Separator for lead-acid battery 有权
    铅酸电池分离器

    公开(公告)号:US07939204B2

    公开(公告)日:2011-05-10

    申请号:US10589961

    申请日:2005-02-24

    IPC分类号: H01M2/16

    摘要: A separator for a lead-acid battery enabling the lead acid battery to infallibly have a predetermined capacity after the initial charging and a prolonged service life by limiting the maximum quantity of reducing substance liberated or produced from the separator at or below a given level.The separator for a lead-acid battery comprising a porous membrane made mainly from a polyolefin resin, an inorganic powder and a mineral oil and containing a surface active agent as an auxiliary material, characterized in that the amount of any reducing substance liberated or eluted after 24 hours of electrolysis carried out at about 25° C. with a direct current of 1.2 A by using an electrolytic cell composed of the porous membrane, a positive electrode, a negative electrode and diluted sulfuric acid is 1.0 ml or less per 100 cm2 when calculated from the consumption of a (1/100)N potassium permanganate solution per 100 cm2 of the porous membrane.

    摘要翻译: 一种铅酸电池用隔板,能够使铅酸蓄电池在初始充电之后确实具有预定的容量,并通过限制从分离器释放或产生的还原物质的最大量限制在给定水平以下,从而延长使用寿命。 一种铅酸电池用隔膜,其特征在于,包括主要由聚烯烃树脂制成的多孔膜,无机粉末和矿物油,并含有表面活性剂作为辅助材料,其特征在于,在经过 通过使用由多孔膜,正极,负极和稀硫酸组成的电解槽,在约25℃下直流电流为1.2A进行24小时电解,每100cm 2为1.0ml以下 由每100cm2多孔膜的(1/100)N高锰酸钾溶液的消耗计算。

    Coaxial dielectric resonator having a groove therein and method of
producing such coaxial dielectric resonator
    5.
    发明授权
    Coaxial dielectric resonator having a groove therein and method of producing such coaxial dielectric resonator 失效
    具有它的同轴电介质谐振器和产生这种同轴电介质谐振器的方法

    公开(公告)号:US5109207A

    公开(公告)日:1992-04-28

    申请号:US621812

    申请日:1990-12-04

    摘要: A dielectric resonator includes a resonator body having a groove formed in its upper surface adjacent to an outer periphery of a through hole formed through the body. An electrically-conductive film on the inner surface of the groove is electrically connected to an electrically-conductive film formed on the inner peripheral surface of the through hole, via an electrically-conductive film formed on a portion of the upper surface of the body lying between the groove and the through hole. The groove having the electrically-conductive film formed on its inner surface enables the length of the body to be reduced and the overall resonator to have a reduced size.