Patch antenna element
    5.
    发明授权

    公开(公告)号:US09871297B2

    公开(公告)日:2018-01-16

    申请号:US14367094

    申请日:2012-12-18

    发明人: Dean Kitchener

    IPC分类号: H01Q9/04 H01Q13/18 H01Q1/24

    摘要: An antenna element for transmission and/or reception of signals within a frequency band comprises a ground plane (4), a patch radiator (2), a connection point (14a) for connection of the antenna element to a feed network and a probe (8a) having two ends. The probe (8a) is located between the ground plane (4) and the patch radiator (2) and the patch radiator (2) is disposed in a parallel relationship with the ground plane (4) to form a resonant cavity between the patch radiator (4) and the ground plane (2). The antenna element comprises a transmission line (10a) which is disposed in a parallel relationship with the ground plane (4) and the transmission line (10a) is connected to an end (9a) of the probe (8a) and is arranged to have a length such that an impedance at the end (9a) of the probe is transformed. The transmission line (10a) is contained within the resonant cavity between the patch radiator (2) and the ground plane (4).

    Compositions and methods for reducing atmospheric ozone levels

    公开(公告)号:US09669401B2

    公开(公告)日:2017-06-06

    申请号:US14821710

    申请日:2015-08-08

    申请人: Air Cross, Inc.

    发明人: Christopher Duke

    IPC分类号: B01J41/12 B01D53/66 B01J41/13

    摘要: Disclosed herein are ozone reactive polymers comprising a structural repeat unit represented by the following formula XLI: wherein A is absent or a linking group selected from the group consisting of substituted or unsubstituted alkylene, substituted or unsubstituted heteroalkylene, substituted or unsubstituted cycloalkylene, substituted or unsubstituted heterocycloalkylene, substituted or unsubstituted arylene, substituted or unsubstituted heteroarylene, substituted or unsubstituted arylalkylene, and substituted or unsubstituted heteroarylalkylene; each of R1 and R2 is, independently, selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted heteroalkyl, substituted or unsubstituted cycloalkyl, substituted or unsubstituted heterocycloalkyl, substituted or unsubstituted aryl, substituted or unsubstituted heteroaryl, substituted or unsubstituted arylalkyl, and substituted or unsubstituted heteroarylalkyl; and wherein the structural repeat unit comprises at least 10% by weight of the polymer.