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    ISOLATION OF POLARIZATIONS IN MULTI-POLARIZED SCANNING PHASED ARRAY ANTENNAS
    1.
    发明申请
    ISOLATION OF POLARIZATIONS IN MULTI-POLARIZED SCANNING PHASED ARRAY ANTENNAS 审中-公开
    在多极化扫描相位阵列天线中分离极化

    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。

    RANDOM, SEQUENTIAL, OR SIMULTANEOUS MULTI-BEAM CIRCULAR ANTENNA ARRAY AND BEAM FORMING NETWORKS WITH UP TO 360° COVERAGE
    2.
    发明公开
    RANDOM, SEQUENTIAL, OR SIMULTANEOUS MULTI-BEAM CIRCULAR ANTENNA ARRAY AND BEAM FORMING NETWORKS WITH UP TO 360° COVERAGE 审中-公开

    公开(公告)号：US20240235603A9

    公开(公告)日：2024-07-11

    申请号：US18386626

    申请日：2023-11-03

    申请人： John Howard

    发明人： John Howard

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

    CPC分类号： H04B1/583 ,  H04B1/0458 ,  H04B7/043

    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.

    Random, sequential, or simultaneous multi-beam circular antenna array and beam forming networks with up to 360° coverage
    3.
    发明授权
    Random, sequential, or simultaneous multi-beam circular antenna array and beam forming networks with up to 360° coverage 有权

    公开(公告)号：US11855680B2

    公开(公告)日：2023-12-26

    申请号：US16891244

    申请日：2020-06-03

    申请人： John Howard

    发明人： John Howard

    IPC分类号： H01Q21/20 ,  H04B1/58 ,  H04B1/04 ,  H04B7/0426

    CPC分类号： H04B1/583 ,  H04B1/0458 ,  H04B7/043

    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.

    Random, sequential, or simultaneous multi-beam circular antenna array and beam forming networks with up to 360° coverage
    4.
    发明授权
    Random, sequential, or simultaneous multi-beam circular antenna array and beam forming networks with up to 360° coverage 有权

    公开(公告)号：US10734733B2

    公开(公告)日：2020-08-04

    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 ,  H01Q3/40 ,  H01Q3/24 ,  H01Q3/26 ,  H01Q21/20

    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.

    Ultra-broadband antenna array with constant beamwidth throughout operating frequency band
    5.
    发明授权
    Ultra-broadband antenna array with constant beamwidth throughout operating frequency band 有权

    公开(公告)号：US09905936B2

    公开(公告)日：2018-02-27

    申请号：US15388509

    申请日：2016-12-22

    申请人： John Howard

    发明人： John Howard ,  Chuck Wah Fung

    IPC分类号： H01Q21/06 ,  H01Q21/20 ,  H01Q21/30 ,  H01Q21/00

    CPC分类号： H01Q21/06 ,  H01Q13/085 ,  H01Q21/0087 ,  H01Q21/064 ,  H01Q21/205 ,  H01Q21/30 ,  Y10T29/49016

    摘要： An antenna array includes a plurality of antenna elements coupled in a common area and extending radially outward from the common area. At least one of the plurality of antenna elements includes a first antenna portion and a second antenna portion arranged in a configuration such that a gap is formed between the first antenna portion and the second antenna portion. The gap includes first spacing associated with a first operating frequency and a first operating wavelength, and a second spacing associated with a second operating frequency and a second operating wavelength. A proportion of the first spacing to the first wavelength is substantially equal to a proportion of the second spacing to the second wavelength, thereby providing a constant beamwidth over an operating frequency band. A method of arranging a plurality of antenna elements in an antenna array is also disclosed.

    Monocotyledonous seed expressing exo-1,4B-glucanase
    7.
    发明授权
    Monocotyledonous seed expressing exo-1,4B-glucanase 有权
    表达外切-14B-葡聚糖酶的单子叶种子

    公开(公告)号：US08558058B2

    公开(公告)日：2013-10-15

    申请号：US11219180

    申请日：2005-09-02

    申请人： Elizabeth Hood ,  John Howard

    发明人： Elizabeth Hood ,  John Howard

    IPC分类号： C12N15/82 ,  A01H5/00

    CPC分类号： C12N15/8242 ,  C12N15/8246 ,  C12N15/8257

    摘要： Expression of recombinant polysaccharide degrading enzymes in plants is described. In one embodiment, expression of the enzyme is preferentially directed to the seed of the plant. Expression may also be preferentially targeted to specific locations within the plant cell. Expression of cellulases in corn is shown. The result is the capacity to produce polysaccharide degrading enzymes in plants at commercially acceptable levels in a reliable manner. Methods of using same in production of ethanol is also described, including use of the plant-produced enzymes in the ethanol production process.

    摘要翻译： 描述了重组多糖降解酶在植物中的表达。 在一个实施方案中，酶的表达优先针对植物的种子。 表达也可以优先靶向植物细胞内的特定位置。 显示玉米纤维素酶的表达。 结果是以可靠的方式以商业上可接受的水平在植物中产生多糖降解酶的能力。 还描述了在乙醇生产中使用其的方法，包括在乙醇生产过程中使用植物生产的酶。

    Means and methods of controlling plant seed germination
    9.
    发明授权
    Means and methods of controlling plant seed germination 有权
    控制植物种子发芽的手段和方法

    公开(公告)号：US08115060B2

    公开(公告)日：2012-02-14

    申请号：US12390485

    申请日：2009-02-22

    申请人： John Howard ,  Erin Engelkrout

    发明人： John Howard ,  Erin Engelkrout

    IPC分类号： C12N15/82 ,  C12N15/29 ,  C12N15/63 ,  C12N15/09 ,  A01H5/10

    CPC分类号： C12N15/8234 ,  C07K14/36 ,  C07K14/465 ,  C12N15/8267

    摘要： A method of controlling germination of seed is provided in which a nucleic acid encoding a protein which causes inhibition of germination is transformed into a plant, operably linked with a promoter that expresses during germination. The protein is one in which a restoring substance can be applied to the seed and restores germination. Also provided is an amylase germination preferred promoter.

    摘要翻译： 提供了一种控制种子发芽的方法，其中将编码引起抑制发芽的蛋白质的核酸转化到植物中，与在发芽过程中表达的启动子可操作地连接。 该蛋白质可以将恢复物质应用于种子并恢复萌发。 还提供了淀粉酶发芽优选的启动子。