公开(公告)号：US20160000374A1

公开(公告)日：2016-01-07

申请号：US14769478

申请日：2014-03-05

Applicant: DREXEL UNIVERSITY

Inventor： Kapil R. Dandekar ,  Genevieve Dion ,  Adam K. Fontecchio ,  Timothy P. Kurzweg ,  Damiano Patron ,  Owen Montgomery

IPC: A61B5/00 ,  A61B5/0205 ,  D04B35/00 ,  A61B5/0476 ,  D04B1/12 ,  D04B1/24

CPC classification number: A61B5/6804 ,  A61B5/0002 ,  A61B5/0024 ,  A61B5/0205 ,  A61B5/04085 ,  A61B5/0476 ,  A61B5/4356 ,  A61B5/4362 ,  A61B5/4519 ,  A61B5/4818 ,  A61B5/742 ,  D04B1/12 ,  D04B1/24 ,  D04B1/243 ,  D04B35/00 ,  D10B2403/02431 ,  G06F3/016 ,  G06F3/041 ,  H05K1/038

Abstract: Knitting machines are used to intermesh conductive yarns into loops resulting in knitted fabrics. The knitting machine is adapted to import different types of yarns (conductive and non-conductive) directly into the knit structure. Combining conductive yarns and knitting systems allows for integration of electrical or mechanical component designs into existing clothing fabrication processes, avoiding current limitations of attaching or gluing conductive fabrics or other components over various materials. Starting with a planar design of an antenna, RFID tag, or some other electronic structure, the layout is converted into a CAD knitting program including a grid representing stitches. The CAD specifications of the final design/product are exported to the knitting machines so that the knitting machine may make conductive fabrics in accordance with the CAD specifications. The conductive fabrics are knitted into a variety of garments that monitor the vital signs of the wearer, including the fetus of an expectant mother.

Abstract translation: 针织机用于将导电纱线互相啮合，形成针织物。 针织机适用于将不同类型的纱线（导电和不导电）直接导入编织结构中。 结合导电纱线和编织系统允许将电气或机械部件设计集成到现有的服装制造工艺中，避免了导电织物或其他部件在各种材料上附着或胶合的现有限制。 从天线，RFID标签或其他电子结构的平面设计开始，布局被转换成包括代表针迹的网格的CAD编织程序。 最终设计/产品的CAD规格出口到针织机，以便针织机可根据CAD规格制作导电织物。 导电织物被编织成各种衣服，其监测佩戴者的生命体征，包括孕妇的胎儿。

公开(公告)号：US10038240B2

公开(公告)日：2018-07-31

申请号：US14653076

申请日：2013-12-20

Applicant: Drexel University ,  Adant Technologies, Inc.

Inventor： Damiano Patron ,  Kapil R. Dandekar ,  Daniele Piazza

IPC: H01Q3/24 ,  H01Q9/44 ,  H01Q1/38 ,  H01Q3/44 ,  H01Q21/20 ,  H01Q21/30

CPC classification number: H01Q3/24 ,  H01Q1/38 ,  H01Q3/44 ,  H01Q9/44 ,  H01Q21/205 ,  H01Q21/30

Abstract: A planar reconfigurable antenna that is capable of generating omnidirectional and directional radiation patterns over a wide frequency band or over multiple frequency bands includes a substrate, one or more pairs of conductive elements on at least one side of the substrate, a common RF feed point, and respective switches that selectively connects one or all of the conductive elements to the common RF feed point. An omni-directional radiation pattern is generated when all of the conductive elements are connected to the common RF feed point, while a directional radiation pattern is generated when only a pair of conductive elements on opposite sides of the substrate are connected to the common RF feed point. In the directional radiation mode, the conductive elements that are not connected to the common RF feed point act as a reflector for other conductive elements that are connected to the common RF feed point.

公开(公告)号：US20150349418A1

公开(公告)日：2015-12-03

申请号：US14653076

申请日：2013-12-20

Applicant: DREXEL UNIVERSITY ,  ADANT TECHNOLOGIES, INC.

Inventor： Damiano Patron ,  Kapil R. Dandekar ,  Daniele Piazza

IPC: H01Q3/24 ,  H01Q1/38 ,  H01Q3/44 ,  H01Q9/44

CPC classification number: H01Q3/24 ,  H01Q1/38 ,  H01Q3/44 ,  H01Q9/44 ,  H01Q21/205 ,  H01Q21/30

Abstract: A planar reconfigurable antenna that is capable of generating omnidirectional and directional radiation patterns over a wide frequency band or over multiple frequency bands includes a substrate, one or more pairs of conductive elements on at least one side of the substrate, a common RF feed point, and respective switches that selectively connects one or all of the conductive elements to the common RF feed point. An omni-directional radiation pattern is generated when all of the conductive elements are connected to the common RF feed point, while a directional radiation pattern is generated when only a pair of conductive elements on opposite sides of the substrate are connected to the common RF feed point. In the directional radiation mode, the conductive elements that are not connected to the common RF feed point act as a reflector for other conductive elements that are connected to the common RF feed point.

Abstract translation: 能够在宽频带或多个频带上产生全向和定向辐射图案的平面可重构天线包括衬底，在衬底的至少一侧上的一对或多对导电元件，公共RF馈电点， 以及各个开关，其选择性地将一个或所有导电元件连接到公共RF馈电点。 当所有导电元件连接到公共RF馈电点时，产生全向辐射图，而当基板的相对侧上仅一对导电元件连接到公共RF馈电时产生定向辐射图 点。 在定向辐射模式中，未连接到公共RF馈电点的导电元件用作连接到公共RF馈电点的其它导电元件的反射器。

公开(公告)号：US09972894B2

公开(公告)日：2018-05-15

申请号：US14643715

申请日：2015-03-10

Applicant: Drexel University

Inventor： Genevieve Dion ,  Kapil R. Dandekar ,  Yury Gogotsi ,  Damiano Patron ,  Kristy A. Jost ,  Michael N. Le ,  Jonathan W. Fisher ,  Stephen J. Watt ,  Andrea C. Cook

IPC: H01Q1/27 ,  H01Q9/26 ,  H01Q1/24

CPC classification number: H01Q1/248 ,  H01Q1/273 ,  H01Q9/26

Abstract: A wearable power harvesting system includes a knitted fabric rectenna including an antenna adapted to receive radio-frequency energy within a desired frequency band and a rectifier circuit that converts received radio-frequency energy into a DC current and voltage. A knitted fabric load/storage unit stores DC power from the rectifier circuit. The power harvesting system is adapted to harvest the radio-frequency energy within the desired frequency band, which may include WLAN frequencies such as the standard 2.4 GHz and 5 GHz WLAN standard frequencies.

公开(公告)号：US20170062943A1

公开(公告)日：2017-03-02

申请号：US15205551

申请日：2016-07-08

Applicant: Drexel University

Inventor： Damiano Patron ,  Kapil R. Dandekar

IPC: H01Q13/20 ,  H01Q15/00 ,  H01Q1/48 ,  H01Q1/36

CPC classification number: H01Q13/28 ,  H01Q3/443 ,  H01Q15/0086

Abstract: Composite Right/Left Handed (CRLH) Leaky-Wave Antennas (LWAs) are a class of radiating elements characterized by an electronically steerable radiation pattern. The design is comprised of a cascade of CRLH unit-cells populated with varactor diodes. By varying the voltage across the varactor diodes, the antenna can steer its directional beam from broadside to backward and forward end-fire directions. A CRLH Leaky-Wave Antenna for the 2.4 GHz Wi-Fi band is miniaturized by etching a Complementary Split-Ring Resonator (CSRR) underneath each CRLH unit-cell. As opposed to conventional LWA designs, the LWA layout does not require thin interdigital capacitors, significantly reducing the PCB manufacturing constraints required to achieve size reduction. The resulting antenna enables CRLH LWAs to be used not only for wireless access points, but also potentially for mobile devices.

Abstract translation: 复合右/左手（CRLH）泄漏波天线（LWAs）是一类以电子导向辐射图为特征的辐射元件。 该设计由一系列具有变容二极管的CRLH单元电池组成。 通过改变变容二极管两端的电压，天线可以将其定向光束从宽边转向后向和向前的端射方向。 用于2.4 GHz Wi-Fi频带的CRLH泄漏波天线通过在每个CRLH单元单元下蚀刻互补分离环谐振器（CSRR）而小型化。 与传统的LWA设计相反，LWA布局不需要薄的指数间电容器，显着降低了实现尺寸减小所需的PCB制造约束。 所产生的天线使CRLH LWAs不仅可用于无线接入点，而且可用于移动设备。

公开(公告)号：US20160261031A1

公开(公告)日：2016-09-08

申请号：US14643715

申请日：2015-03-10

Applicant: Drexel University

Inventor： Genevieve Dion ,  Kapil R. Dandekar ,  Yury Gogotsi ,  Damiano Patron ,  Kristy A. Jost ,  Michael N. Le ,  Jonathan W. Fisher ,  Stephen J. Watt ,  Andrea C. Cook

IPC: H01Q1/24

CPC classification number: H01Q1/248 ,  H01Q1/273 ,  H01Q9/26

Abstract: A wearable power harvesting system includes a knitted fabric rectenna including an antenna adapted to receive radio-frequency energy within a desired frequency band and a rectifier circuit that converts received radio-frequency energy into a DC current and voltage. A knitted fabric load/storage unit stores DC power from the rectifier circuit. The power harvesting system is adapted to harvest the radio-frequency energy within the desired frequency band, which may include WLAN frequencies such as the standard 2.4 GHz and 5 GHz WLAN standard frequencies.

Abstract translation: 一种可穿戴式电能收集系统，包括：针织物整流天线，其包括适于接收期望频带内的射频能量的天线;以及将接收到的射频能量转换成直流电流和电压的整流电路。 针织物加载/存储单元存储来自整流电路的直流电力。 电力收集系统适于收集期望频带内的射频能量，其可以包括诸如标准2.4GHz和5GHz WLAN标准频率的WLAN频率。

公开(公告)号：US10014585B2

公开(公告)日：2018-07-03

申请号：US15205551

申请日：2016-07-08

Applicant: Drexel University

Inventor： Damiano Patron ,  Kapil R. Dandekar

IPC: H01Q13/28 ,  H01Q3/44 ,  H01Q15/00

CPC classification number: H01Q13/28 ,  H01Q3/443 ,  H01Q15/0086

Abstract: Composite Right/Left Handed (CRLH) Leaky-Wave Antennas (LWAs) are a class of radiating elements characterized by an electronically steerable radiation pattern. The design is comprised of a cascade of CRLH unit-cells populated with varactor diodes. By varying the voltage across the varactor diodes, the antenna can steer its directional beam from broadside to backward and forward end-fire directions. A CRLH Leaky-Wave Antenna for the 2.4 GHz Wi-Fi band is miniaturized by etching a Complementary Split-Ring Resonator (CSRR) underneath each CRLH unit-cell. As opposed to conventional LWA designs, the LWA layout does not require thin interdigital capacitors, significantly reducing the PCB manufacturing constraints required to achieve size reduction. The resulting antenna enables CRLH LWAs to be used not only for wireless access points, but also potentially for mobile devices.