公开(公告)号：US20240030573A1

公开(公告)日：2024-01-25

申请号：US18215024

申请日：2023-06-27

申请人： John Howard

发明人： John Howard

IPC分类号： H01P1/18 ,  H01P11/00

CPC分类号： H01P1/184 ,  H01P11/007

摘要： A negative differential phase shifter includes a first uncoupled transmission line, wherein the first uncoupled transmission line has a length of λ/2 at a center frequency; a first coupled transmission line, wherein the first coupled transmission line is operatively connected to the first uncoupled transmission line; and a second uncoupled transmission line, wherein the second uncoupled transmission line is operatively connected to the first coupled transmission line, and the second uncoupled transmission line is operatively connected to the first uncoupled transmission line. A method of implementing a negative differential phase shifter includes operatively connecting a first coupled transmission line to a first uncoupled transmission line, wherein the first uncoupled transmission line has a length of λ/2 at a center frequency; operatively connecting a second uncoupled transmission line to the first coupled transmission line; and operatively connecting the second uncoupled transmission line to the first uncoupled transmission line.

公开(公告)号：US11569011B2

公开(公告)日：2023-01-31

申请号：US15343982

申请日：2016-11-04

申请人： John Howard

发明人： John Howard ,  Wenny Lin ,  Xiao Chu Mei

IPC分类号： H01B13/26 ,  H01R24/40 ,  H01B7/24

摘要： A method and apparatus of reinforcing a cable includes wrapping a flexible wire around at least a portion of an external surface of the cable, and soldering the flexible wire to the cable, thereby positioning the flexible wire with respect to the cable. The portion of the external surface of the cable wrapped with the flexible wire may be disposed between the cable and a connector, or represent an entire length of the cable. Wrapping the flexible wire may involve wrapping the flexible wire around a portion of the external surface of the cable such that coils of the flexible wire are disposed apart from each other, and sliding the coils together such that the coils of the flexible wire are touching each other.

公开(公告)号：US20210058052A1

公开(公告)日：2021-02-25

申请号：US16990678

申请日：2020-08-11

申请人： John Howard

发明人： Wenny Howard ,  John Howard

IPC分类号： H03H7/01

摘要： A non-monotonic re-entrant band stop filter equalizer includes terminations and couplers. A first port of a first coupler is coupled as a first external port, and a second port of the first coupler is coupled to a band stop filter. A third port of the first coupler is coupled to a fourth port of a second coupler, and a fourth port of the first coupler is coupled to a first termination. A first port of the second coupler is coupled to the band stop filter, and a second port of the second coupler is coupled as a second external port. A third port of the second coupler is coupled to a second termination. At least one of the first directional coupler and/or second directional coupler may include at least one of a backward coupler and/or forward coupler.

公开(公告)号：US20200295799A1

公开(公告)日：2020-09-17

申请号：US16891244

申请日：2020-06-03

申请人： John Howard

发明人： John Howard

IPC分类号： H04B1/58 ,  H04B7/0426 ,  H04B1/04

摘要： A beam forming network system includes a first beam forming network having first and second ports, in which each of the first ports is operatively coupled to an antenna element; and a second beam forming network including third and fourth ports, in which each of the third ports is operatively coupled to one of the second ports using at least one of a phase shifter, attenuator, power divider, and/or hybrid coupler. A method of beam forming includes coupling each of the first ports associated with a first beam forming network operatively to one antenna element, and coupling each of the third ports associated with a second beam forming network operatively to one of the second ports associated with the first beam forming network using at least one of a phase shifter, attenuator, power divider, and/or hybrid coupler.

公开(公告)号：US10741931B2

公开(公告)日：2020-08-11

申请号：US16746880

申请日：2020-01-19

申请人： John Howard

发明人： John Howard

IPC分类号： H01Q21/00 ,  H01Q1/52 ,  H01Q21/06 ,  H01Q9/04

摘要： A multi-polarized scanning phased array antenna is provided, which includes a first element, second element, first feed line, second feed line, first 180 degree phase shifter, second 180 degree phase shifter, third 180 degree phase shifter, fourth 180 degree phase shifter, Θ1 degree phase shifter, and Θ2 degree phase shifter. The first element is fed with a first polarization signal at a first feed point and a third feed point, and a second polarization signal at a second feed point and a fourth feed point. The second element is fed with the first polarization signal at a fifth feed point and a seventh feed point, and the second polarization signal at a sixth feed point and an eighth feed point. The first feed line is coupled to the elements and associated with the first polarization. The second feed line is coupled to the plurality of elements and associated with the second polarization. The first 180 degree phase shifter is coupled in the first feed line between the first and third feed points, and the second 180 degree phase shifter is coupled in the second feed line between the second and fourth feed points. The third 180 degree phase shifter is coupled in the first feed line between the fifth and seventh feed points, and the fourth 180 degree phase shifter is coupled in the second feed line between the sixth and eighth feed points. The Θ1 degree phase shifter is coupled in the first feed line between the third and seventh feed points, and the Θ2 degree phase shifter is coupled in the second feed line between the second and sixth feed points.

公开(公告)号：US20200153111A1

公开(公告)日：2020-05-14

申请号：US16746880

申请日：2020-01-19

申请人： John Howard

发明人： John Howard

IPC分类号： H01Q21/00 ,  H01Q9/04 ,  H01Q21/06 ,  H01Q1/52

摘要： A multi-polarized scanning phased array antenna is provided, which includes a first element, second element, first feed line, second feed line, first 180 degree phase shifter, second 180 degree phase shifter, third 180 degree phase shifter, fourth 180 degree phase shifter, Θ1 degree phase shifter, and Θ2 degree phase shifter. The first element is fed with a first polarization signal at a first feed point and a third feed point, and a second polarization signal at a second feed point and a fourth feed point. The second element is fed with the first polarization signal at a fifth feed point and a seventh feed point, and the second polarization signal at a sixth feed point and an eighth feed point. The first feed line is coupled to the elements and associated with the first polarization. The second feed line is coupled to the plurality of elements and associated with the second polarization. The first 180 degree phase shifter is coupled in the first feed line between the first and third feed points, and the second 180 degree phase shifter is coupled in the second feed line between the second and fourth feed points. The third 180 degree phase shifter is coupled in the first feed line between the fifth and seventh feed points, and the fourth 180 degree phase shifter is coupled in the second feed line between the sixth and eighth feed points. The Θ1 degree phase shifter is coupled in the first feed line between the third and seventh feed points, and the Θ2 degree phase shifter is coupled in the second feed line between the second and sixth feed points.

公开(公告)号：US09559430B2

公开(公告)日：2017-01-31

申请号：US14474414

申请日：2014-09-02

申请人： John Howard

发明人： John Howard ,  Chuck Wah Fung

IPC分类号： H01Q21/06 ,  H01Q21/30 ,  H01Q21/20 ,  H01Q21/00 ,  H01Q13/08 ,  H01Q9/28 ,  H01Q11/10

CPC分类号： H01Q21/06 ,  H01Q9/28 ,  H01Q11/10 ,  H01Q13/085 ,  H01Q21/0087 ,  H01Q21/205 ,  H01Q21/30 ,  Y10T29/49016

摘要： An antenna array includes a plurality of antenna elements configured in a flare such that each of the plurality of antenna elements is uniformly spaced apart from at least one adjacent antenna element. Each of the plurality of antenna elements is coupled in a common area, and each of the plurality of antenna elements extends radially outward from the common area. A method of arranging antenna elements in an antenna array includes configuring a plurality of antenna elements in a flare such that each antenna element is uniformly spaced apart from at least one adjacent antenna element, and each of the plurality of antenna elements extends radially outward from a common area; and coupling each of the plurality of antenna elements in the common area.

摘要翻译： 天线阵列包括配置在喇叭口中的多个天线元件，使得多个天线元件中的每一个与至少一个相邻的天线元件均匀间隔开。 多个天线元件中的每一个耦合在公共区域中，并且多个天线元件中的每一个天线元件从公共区域径向向外延伸。 一种在天线阵列中布置天线元件的方法包括：以喇叭形的形式配置多个天线元件，使得每个天线元件与至少一个相邻的天线元件均匀间隔开，并且多个天线元件中的每一个天线元件从 公共区域 并且将多个天线元件中的每一个耦合在公共区域中。

公开(公告)号：US20160308285A1

公开(公告)日：2016-10-20

申请号：US15190965

申请日：2016-06-23

申请人： John Howard ,  Chuck Wah Fung

发明人： John Howard ,  Chuck Wah Fung

IPC分类号： H01Q21/22 ,  H01Q9/04

CPC分类号： H01Q1/523 ,  H01Q9/0435 ,  H01Q21/065

摘要： A multi-polarized phased array antenna includes an element, a first feed line, a second feed line, a first phase shifter, and a second phase shifter. The element is fed with a first polarization signal at first and third angles, and a second polarization signal at second and fourth angles. One of the first polarization signal and second polarization signal is cancelled at a feed point in at least one of a first feed line and second feed line by operation of the first phase shifter, second phase shifter, first angle, second angle, third angle, and fourth angle. The first phase shifter provides a first 180° phase shift between the first and third angles, and the second phase shifter provides a second 180° phase shift between the second and fourth angles. A corresponding method of increasing isolation between polarizations in the multi-polarized phased array antenna is also provided.

摘要翻译： 多极化相控阵天线包括元件，第一馈电线，第二馈电线，第一移相器和第二移相器。 该元件以第一和第三角度馈送第一偏振信号，并且以第二和第四角度馈送第二偏振信号。 通过第一移相器，第二移相器，第一角度，第二角度，第三角度的操作，第一偏振信号和第二偏振信号中的一个在第一馈电线和第二馈电线中的至少一个的馈电点处被抵消， 和第四个角度。 第一移相器在第一和第三角之间提供第一180°相移，第二移相器在第二和第四角之间提供第二180°相移。 还提供了增加多极化相控阵天线中的极化之间的隔离度的相应方法。

公开(公告)号：US20150070241A1

公开(公告)日：2015-03-12

申请号：US14227634

申请日：2014-03-27

申请人： John Howard

发明人： John Howard ,  Chuck Wah Fung

IPC分类号： H01Q21/00

摘要： An antenna array system provides simultaneous 360° coverage and includes Butler matrix beam forming networks connected to an antenna array, which includes narrow and/or broadband elements, and multiple transmitters, receivers, or transceivers to allow for 360° transmission and/or reception. The antenna array system can provide multiple beams, such as without limitation 8 or 16 beams, which can vary in beam crossing and/or overlap to provide simultaneous 360° coverage. An antenna array system includes a plurality of antenna elements configured in an array, a first Butler matrix operatively coupled to the plurality of antenna elements, and a second Butler matrix operatively coupled to the first Butler matrix. A method of providing simultaneous 360° coverage includes configuring a plurality of antenna elements in an array, coupling a first Butler matrix operatively to the plurality of antenna elements, and coupling a second Butler matrix operatively to the first Butler matrix.

摘要翻译： 天线阵列系统同时提供360°覆盖，并且包括连接到包括窄和/或宽带元件的天线阵列的Butler矩阵波束形成网络以及允许360°传输和/或接收的多个发射器，接收器或收发器。 天线阵列系统可以提供多个光束，例如不限于8或16个光束，其可以在光束交叉和/或重叠中变化以提供同时360°的覆盖。 天线阵列系统包括以阵列配置的多个天线元件，可操作地耦合到多个天线元件的第一巴特勒矩阵，以及可操作地耦合到第一巴特勒矩阵的第二巴特勒矩阵。 提供同时360°覆盖的方法包括配置阵列中的多个天线元件，将第一Butler矩阵可操作地耦合到多个天线元件，以及将第二Butler矩阵可操作地耦合到第一Butler矩阵。

公开(公告)号：US08949636B2

公开(公告)日：2015-02-03

申请号：US12368126

申请日：2009-02-09

申请人： Paul Diefenbaugh ,  John Howard

发明人： Paul Diefenbaugh ,  John Howard

IPC分类号： G06F1/32 ,  G06F13/38

CPC分类号： G06F13/385 ,  G06F2213/0042 ,  Y02D10/14 ,  Y02D10/151

摘要： Embodiments comprising a memory and a USB host controller coupled to the memory. The power efficiency of a USB during asynchronous transfers is increased by limiting usage of an asynchronous schedule stored in the memory when servicing a scheduled asynchronous transfer endpoint. Other embodiments may be described and claimed.