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1. 发明申请

WO0079217A2 MICRO-ELECTRO-MECHANICAL GYROSCOPE 审中-公开
标题翻译：微电子机械陀螺仪
公开(公告)号：WO0079217A2
公开(公告)日：2000-12-28
申请号：PCT/US0016455
申请日：2000-06-15
申请人： PENN STATE RES FOUND , VARADAN VIJAY K , XAVIER PASCAL B , SUH WILLIAM D , KOLLAKOMPIL JOSE A , VARADAN VASUNDARA V
发明人： VARADAN VIJAY K , XAVIER PASCAL B , SUH WILLIAM D , KOLLAKOMPIL JOSE A , VARADAN VASUNDARA V
IPC分类号： G01C19/5698 , H03H3/08 , H03H9/02 , H03H9/64 , G01C
CPC分类号： G01C19/5698 , H03H9/02645 , H03H9/6486
摘要： A gyroscope comprises a piezoelectric substrate having a surface. Disposed on the surface are a resonator transducer, a pair of reflectors, a structure such as a metallic dot, and a sensor transducer. the resonator transducer creates a first surface acoustic wave on the surface. The pair of reflectors reflects the first surface acoustic wave to form a standing wave within a region of the surface between the pair of reflectors. The structure is disposed on the surface within the region, wherein a Coriolis force acting upon the structure creates a second surface acoustic wave. The sensor senses the second surface acoustic wave and provides an output indicative thereof.
摘要翻译：陀螺仪包括具有表面的压电基片。表面上设置有谐振器换能器，一对反射器，诸如金属点的结构和传感器换能器。谐振器传感器在表面上产生第一声表面波。一对反射器反射第一表面声波以在该对反射器之间的表面的区域内形成驻波。该结构设置在区域内的表面上，其中作用在该结构上的科里奥利力产生第二表面声波。传感器感测第二表面声波并提供表示其的输出。

2. 发明申请

WO0201668A3 MINIATURIZED CONFORMAL WIDEBAND FRACTAL ANTENNAS ON HIGH DIELECTRIC SUBSTRATES AND CHIRAL LAYERS 审中-公开
标题翻译：高介电基板和主层的微型一致宽带分离天线
公开(公告)号：WO0201668A3
公开(公告)日：2002-06-27
申请号：PCT/US0141184
申请日：2001-06-28
申请人： PENN STATE RES FOUND
发明人： VARADAN VIJAY K , VINOY KALARICKAPARAMBIL , KILLAKOMPIL JOSE A , VARADAN VASUNDARA V
IPC分类号： H01Q1/36 , H01Q3/44 , H01Q9/40 , H01Q15/00 , H01Q1/38
CPC分类号： H01Q3/44 , H01Q1/36 , H01Q9/40 , H01Q15/0093
摘要： A class of antennas (20) that comprises an electrically conductive fractal pattern disposed on a dielectric substrate (22). One antenna style has a ground plane (26) that is perpendicular to the substrate and another style has a ground plane (82) that is parallel to the substrate. The substrate has a dielectric constant of in the range of about 10 to 600 or more and may be a ferroelectric, such as barium strontium titanate. A bias voltage (52A) applied across the substrate can tune the antenna for operation in a particular frequency range. The antenna can be made especially wideband by placing an absorbing material (62) behind the substrate. The fractal pattern may be any fractal pattern, such as Hibert curve, Koch curve, Sierpinski gasket and Sierpinski carpet. One style of the antenna uses a fractal pattern that has a plurality of segments arranged in a first configuration and a switch (S1, S2) disposed to alter the first configuration to one or more other configurations. The antenna elements may be arranged in a phased array.
摘要翻译：一类天线（20），其包括布置在电介质基片（22）上的导电分形图案。一种天线方式具有垂直于衬底的接地平面（26），另一种类型具有平行于衬底的接地平面（82）。基板的介电常数在约10-600或更大的范围内，并且可以是铁电体，例如钛酸锶钡。施加在衬底上的偏置电压（52A）可以调谐天线以在特定频率范围内操作。通过在衬底后面放置吸收材料（62），可以使天线特别宽。分形图案可以是任何分形图案，例如Hibert曲线，Koch曲线，Sierpinski垫片和Sierpinski地毯。天线的一种风格使用具有以第一配置布置的多个段的分形图案和设置成将第一配置改变成一个或多个其它配置的开关（S1，S2）。天线元件可以布置在相控阵列中。

3. 发明专利

AU7927001A Miniaturized conformal wideband fractal antennas on high dielectric substrates and chiral layers 未知
$Miniaturized conformal wideband fractal antennas on high dielectric substrates and chiral layers$
公开(公告)号：AU7927001A
公开(公告)日：2002-01-08
申请号：AU7927001
申请日：2001-06-28
申请人： PENN STATE RES FOUND
发明人： VARADAN VIJAY K , VINOY KALARICKAPARAMBIL , KILLAKOMPIL JOSE A , VARADAN VASUNDARA V
IPC分类号： H01Q1/36 , H01Q3/44 , H01Q9/40 , H01Q15/00
摘要： A class of antennas that comprise an electrically conductive fractal pattern disposed on a dielectric substrate and are capable of construction in a size measured in centimeters as compared to previous antennas of the same class that measured in meters. One antenna style has a ground plane that is perpendicular to the substrate and another style has a ground plane that is parallel to the substrate. The substrate has a dielectric constant of in the range of about 10 to 600 or more and may be a ferroelectric, such as barium strontium titanate. A bias voltage applied across the substrate can tune the antenna for operation in a particular frequency range. The antenna can be made especially wideband by placing an absorbing material behind the substrate. The fractal pattern may be any fractal pattern, such as Hilbert curve, Koch curve, Sierpinski gasket and Sierpinski carpet. One style of the antenna uses a fractal pattern that has a plurality of segments arranged in a first configuration and a switch disposed to alter the first configuration to one or more other configurations. The antenna elements may also be arranged in a phased array.

4. 发明专利

GB2266825A Apparatus for microwave heating a non-metallic material or a discrete layer thereof 未知
公开(公告)号：GB2266825A
公开(公告)日：1993-11-10
申请号：GB9309146
申请日：1993-05-04
申请人： PENN STATE RES FOUND
发明人： VARADAN VIJAY K , VARADAN VASUNDARA V , SCHAFFER THOMAS L
IPC分类号： E04G21/16 , H05B6/80
摘要： Microwave energy is introduced into an enclosure (58) defining a first cavity, a semiconductive sheet (66) being positioned at the bottom of the first cavity and thermal insulation (72) overlying the semiconductive sheet. A second cavity (80) is defined by the undersurface of the semiconductive sheet (66) and flexible microwave shielding in the form of a skirt (78) which is attached to, and depends from, the enclosure, The semiconductive sheet converts some of the microwave energy into thermal energy and transmits the thermal energy into the second cavity (80) while transmitting (or focusing) the remainder of the microwave energy directly to the required discrete layer 48-54 of the non-metallic material (46). The system includes a carriage whose handle adjusts the height of the semiconductive sheet above the surface of the non- metallic material. Various forms of semi-conductor sheet are disclosed.

5. 发明专利

AU3832993A Microwave heating system 未知
公开(公告)号：AU3832993A
公开(公告)日：1993-11-11
申请号：AU3832993
申请日：1993-05-03
申请人： PENN STATE RES FOUND
发明人： VARADAN VI JAY K , VARADAN VASUNDARA V , SCHAFFER THOMAS L
IPC分类号： E04G21/16 , H05B6/80 , H05B6/10

6. 发明专利

GB2266825B Apparatus for heating a non-metallic material 未知
公开(公告)号：GB2266825B
公开(公告)日：1996-02-14
申请号：GB9309146
申请日：1993-05-04
申请人： PENN STATE RES FOUND
发明人： VARADAN VIJAY K , VARADAN VASUNDARA V , SCHAFFER THOMAS L
IPC分类号： E04G21/16 , H05B6/80

7. 发明专利

CA2094316A1 MICROWAVE HEATING SYSTEM 未知
公开(公告)号：CA2094316A1
公开(公告)日：1993-11-05
申请号：CA2094316
申请日：1993-04-19
申请人： PENN STATE RES FOUND
发明人： VARADAN VIJAY K , VARADAN VASUNDARA V , SCHAFFER THOMAS L
IPC分类号： E04G21/16 , H05B6/80 , H05B6/64
摘要： A system is provided for heating non-metallic material or a discrete layer of the non-metallic material. Microwave energy is introduced into an enclosure defining a first cavity and capable of substantially containing the microwave energy. A semiconductive sheet is positioned at the bottom of the first cavity. Thermal insulation overlies the semiconductive sheet. A second cavity is defined by the undersurface of the semiconductive sheet and flexible microwave shielding in the form of a skirt which is attached to, and depends from, the enclosure. The flexible shielding is composed of a material which also substantially contains the microwave energy. The semiconductive sheet is effective to convert some of the microwave energy into thermal energy and to transmit the thermal energy into the second cavity while transmitting the remainder of the microwave energy directly to the discrete layer, thereby rapidly heating the discrete layer. The system includes a carriage with a handle for moving the apparatus across a surface of the non-metallic material and for adjusting the height of the semiconductive sheet above the surface of the non-metallic material.

8. 发明专利

AU653488B2 Microwave heating system 未知
公开(公告)号：AU653488B2
公开(公告)日：1994-09-29
申请号：AU3832993
申请日：1993-05-03
申请人： PENN STATE RES FOUND
发明人： VARADAN VI JAY K , VARADAN VASUNDARA V , SCHAFFER THOMAS L
IPC分类号： E04G21/16 , H05B6/80 , H05B6/10

9. 发明专利

AU652335B2 Electromagnetic shielding and absorptive materials 未知
公开(公告)号：AU652335B2
公开(公告)日：1994-08-25
申请号：AU4408389
申请日：1989-09-14
申请人： PENN STATE RES FOUND
发明人： VARADAN VIJAY K , VARADAN VASUNDARA V
IPC分类号： H05K9/00

10. 发明专利

AU4236293A Electromagnetic shielding materials 未知
公开(公告)号：AU4236293A
公开(公告)日：1993-11-29
申请号：AU4236293
申请日：1993-05-04
申请人： PENN STATE RES FOUND
发明人： VARADAN VIJAY K , VARADAN VASUNDARA V , WILLIAMS NEIL R , CRESKO JOSEPH W
IPC分类号： H01B1/20 , H01B1/22 , H01B1/24 , H05K1/02 , H05K1/09 , H05K3/28 , H05K9/00 , H01B1/00
摘要： The present invention provides for conductive electromagnetic shielding (EMS) compositions which can be formulated to provide effective shielding over a broad range of frequencies, e.g. 30 MHz. to 110 GHz. which is based on a mixture of a polymeric or liquid matrix material and a synergestic combination of conductive powders, fibers and optional flake components. The invention also provides for formulations containing the above composition which are adapted for EMS applications such as pliable caulking, thermoformable shaped articles such as housings and cabinetry, flexible gasket material, shielding curtains, coatings and paints which may be applied to substrates such as glass, plastic or metal, structural composites, conformal coatings for printed circuit boards and like applications.

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