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    Electrically tunable filters with dielectric varactors
    1.
    发明申请
    Electrically tunable filters with dielectric varactors 有权
    带电介质变压器的电可调滤波器

    公开(公告)号：US20050088255A1

    公开(公告)日：2005-04-28

    申请号：US10979001

    申请日：2004-11-01

    申请人： Louise Sengupta ,  Steven Stowell ,  Yongfei Zhu ,  Somnath Sengupta ,  Luna Chiu ,  Xubai Zhang

    发明人： Louise Sengupta ,  Steven Stowell ,  Yongfei Zhu ,  Somnath Sengupta ,  Luna Chiu ,  Xubai Zhang

    IPC分类号： H01G7/06 ,  H01P1/20 ,  H03H7/01

    CPC分类号： H01P1/20

    摘要： This invention provides a voltage tunable filter comprising an input connection point, an output connection point, and at least one circuit branch electrically coupled to the input connection point and the output connection point and including a voltage tunable dielectric varactor electrically connected to an inductor. The voltage tunable filter can be one of a low-pass, high-pass, band-pass, or band-stop filter. The varactor can include built-in DC blocking capacitors.

    摘要翻译： 本发明提供了一种电压可调谐滤波器，包括输入连接点，输出连接点和电耦合到输入连接点和输出连接点的至少一个电路支路，并且包括电连接到电感器的电压可调介质变容二极管。 电压可调滤波器可以是低通，高通，带通或带阻滤波器之一。 变容二极管可以包括内置的直流阻塞电容器。

    Electronically tunable, low-loss ceramic materials including a tunable dielectric phase and multiple metal oxide phases
    2.
    发明申请
    Electronically tunable, low-loss ceramic materials including a tunable dielectric phase and multiple metal oxide phases 有权
    电子可调谐的低损耗陶瓷材料，包括可调电介质相和多个金属氧化物相

    公开(公告)号：US20070145647A1

    公开(公告)日：2007-06-28

    申请号：US11707816

    申请日：2007-02-17

    申请人： Louise Sengupta ,  Xubai Zhang ,  Luna Chiu

    发明人： Louise Sengupta ,  Xubai Zhang ,  Luna Chiu

    IPC分类号： B28B3/00 ,  C04B35/64

    CPC分类号： C04B35/20 ,  C04B35/4682 ,  C04B35/47 ,  C04B2235/3206 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3445 ,  C04B2235/5436 ,  C04B2235/768 ,  C04B2235/80

    摘要： Electronically tunable dielectric materials having favorable properties are disclosed. The electronically tunable materials include an electronically tunable dielectric phase such as barium strontium titanate in combination with at least two additional metal oxide phases. The additional metal oxide phases may include, for example, oxides of Mg, Si, Ca, Zr, Ti and Al. The electronically tunable materials may be provided in bulk, thin film and thick film forms for use in devices such as phased array antennas, tunable filters and the like. The materials are useful in many applications, including the area of radio frequency engineering and design.

    摘要翻译： 公开了具有良好性能的电可调电介质材料。 电子可调谐材料包括电子可调电介质相，例如钛酸锶钡与至少两个另外的金属氧化物相结合。 附加的金属氧化物相可以包括例如Mg，Si，Ca，Zr，Ti和Al的氧化物。 电子可调谐材料可以以体积，薄膜和厚膜形式提供，用于诸如相控阵天线，可调谐滤波器等的装置。 这些材料在许多应用中是有用的，包括射频工程和设计领域。

    Tunable low loss material composition and methods of manufacture and use therefore
    6.
    发明申请
    Tunable low loss material composition and methods of manufacture and use therefore 有权
    因此，可调低损耗材料组成及其制造和使用方法

    公开(公告)号：US20060060900A1

    公开(公告)日：2006-03-23

    申请号：US10991924

    申请日：2004-11-18

    申请人： Xubai Zhang ,  Louise Sengupta ,  Elijah Underhill

    发明人： Xubai Zhang ,  Louise Sengupta ,  Elijah Underhill

    IPC分类号： H01L21/00 ,  H01L29/94

    CPC分类号： C04B35/4682 ,  C04B35/47 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3229 ,  C04B2235/3251 ,  C04B2235/3284 ,  C04B2235/3418 ,  C04B2235/3436 ,  C04B2235/3445 ,  C04B2235/3454 ,  C04B2235/36 ,  C04B2235/6025 ,  C04B2235/768

    摘要： An embodiment of the present invention provides an electronically tunable dielectric material, comprising at least one electronically tunable dielectric phase and at least one compound of low loss complex perovskites. The at least one electronically tunable dielectric phase may be selected from the group consisting of barium strontium titanate, barium titanate, strontium titanate, barium calcium titanate, barium calcium zirconium titanate, lead titanate, lead zirconium titanate, lead lanthanum zirconium titanate, lead niobate, lead tantalate, potassium strontium niobate, sodium barium niobate/potassium phosphate, potassium niobate, lithium niobate, lithium tantalate, lanthanum tantalate, barium calcium zirconium titanate, sodium nitrate, and combinations thereof. Further, the barium strontium titanate may of the formula BaxSr1-xTiO3, where x is from about 0 to about 1, or more specifically, but not limited in this respect, may also be of the formula BaxSr1-xTiO3, where x may be from about 0.15 to about 0.65 or from about 0.25 to about 0.60.

    摘要翻译： 本发明的一个实施例提供一种电子可调电介质材料，其包括至少一个电子可调电介质相和至少一种低损耗复合钙钛矿的化合物。 所述至少一个电子可调电介质相可以选自钛酸锶钡，钛酸钡，钛酸锶钛酸钡，钛酸钡钛，钛酸铅锆，钛酸铅锆，钛酸铅镧锆，铌酸铅， 铌酸铅，铌酸锶钡钠，磷酸钾钡，铌酸钾，铌酸锂，钽酸锂，钽酸镧，钛酸钡锆，硝酸钠及其组合。 此外，钛酸锶钡可以具有式BaxSr1-xTiO3，其中x为约0至约1，或更具体地但不限于此，也可以是式BaxSr1-xTiO3，其中x可以来自 约0.15至约0.65或约0.25至约0.60。

    Varactors and methods of manufacture and use
    9.
    发明申请
    Varactors and methods of manufacture and use 审中-公开
    变形金刚和制造和使用的方法

    公开(公告)号：US20060065916A1

    公开(公告)日：2006-03-30

    申请号：US10952964

    申请日：2004-09-29

    申请人： Xubai Zhang ,  Louise Sengupta ,  Jason Sun ,  Nicolaas DuToit

    发明人： Xubai Zhang ,  Louise Sengupta ,  Jason Sun ,  Nicolaas DuToit

    IPC分类号： H01L29/94

    CPC分类号： H01L29/93 ,  H01L27/0808

    摘要： In an embodiment of the present invention is provided a varactor, comprising: a bottom electrode supported by a substrate; a tunable dielectric in contact with said bottom electrode and in contact with a top electrode; and an interconnect in contact with said top electrode and capable of being in contact with a voltage source. The top electrode and the tunable dielectric may be encapsulated and the tunable dielectric layer may comprise one of: barium strontium titanate, barium calcium titanate, lead zirconium titanate, lead lanthanum zirconium titanate, lead titanate, barium calcium zirconium titanate, sodium nitrate, KNbO.sub.3, LiNbO.sub.3, LiTaO.sub.3, PbNb.sub.2 O.sub.6, PbTa.sub.2 O.sub.6, KSr(NbO.sub.3), NaBa.sub.2 (NbO.sub.3).sub.5, KH.sub.2 PO.sub.4, and composites thereof. Further, the substrate may comprise one of: MgO, alumina (AL.sub.2 O.sub.3), LaAlO.sub.3, glass, sapphire, quartz, silicon, gallium arsenide and any material classified as low temperature co-fired ceramic (LTCC) and the top or bottom electrode may comprise one of: gold, aluminum, copper, nickel, palladium, platinum, platinum-rhodium, and ruthenium oxide, indium tin oxide.

    摘要翻译： 在本发明的一个实施例中，提供了一种变容二极管，包括：由基板支撑的底部电极; 与所述底部电极接触并与顶部电极接触的可调电介质; 以及与所述顶部电极接触并能够与电压源接触的互连。 顶部电极和可调电介质可以被封装，并且可调电介质层可以包括钛酸锶钡钛酸钡，钛酸铅锆，钛酸镧钛，钛酸铅，钛酸钡锆，硝酸钠，KNbO之一。 sub 3，LiNbO 3，LiTaO 3，PbNb 2 O 6，PbT 2 O 6，KSr（NbO 3），NaBa.sub .2（NbO.sub.3），KH2PO4及其复合材料。 此外，衬底可以包括以下之一：MgO，氧化铝（Al 2 O 3），LaAlO 3，玻璃，蓝宝石，石英，硅，砷化镓和任何分类为低温助熔剂的材料， 烧结陶瓷（LTCC）和顶部或底部电极可以包括金，铝，铜，镍，钯，铂，铂 - 铑和氧化钌之一，氧化铟锡。