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    • 3. 发明授权
    • Photonically controlled antenna array
    • 光电天线阵列
    • US6078288A
    • 2000-06-20
    • US195506
    • 1998-11-18
    • Stephen B. AdamsDavid D. LiuDavid P. CharetteBrian J. EdwardBryan L. CleavelandBruce R. LanningRobert E. Munson
    • Stephen B. AdamsDavid D. LiuDavid P. CharetteBrian J. EdwardBryan L. CleavelandBruce R. LanningRobert E. Munson
    • B60T7/04B60T13/66H01Q3/26H01Q21/00H01Q3/22H01Q13/00
    • H01Q3/2676B60T13/662B60T7/042H01Q21/005
    • A photonically controlled antenna array is made of a plurality of stacked light waveguides made of a material such as silicon whereon each of which one or more photonically controlled antenna elements are mounted. Light is injected into ones of the light waveguides and reflects therein until it is absorbed by the antenna elements mounted thereon due to the higher refractive index of silicon. When the photonically controlled antenna elements are illuminated they are switched to a conductive state and can transmit and receive electromagnetic signals. When no light is injected into the light waveguide the photonically controlled antenna elements are not illuminated and are in a non-conductive state wherein they cannot receive or transmit electromagnetic signals. One edge of each of the light waveguides is adjacent to a ground plane, and the antenna elements on each light waveguide are spaced from said ground plane a distance equal to a quarter wavelength at the frequency at which each of said photonically controlled antenna elements is designed to operate. The antenna elements radiate and receive signals in a direction parallel to said waveguides that is opposite to said ground plane.
    • 光控天线阵列由多个由诸如硅的材料制成的堆叠光波导制成,其中每个天线单元安装有一个或多个光子控制的天线元件。 光被注入光波导中的一个并在其中反射,由于硅的较高折射率而被安装在其上的天线元件吸收。 当光子控制的天线元件被照亮时,它们被切换到导通状态并且可以发射和接收电磁信号。 当没有光注入到光波导中时,光子控制的天线元件不被照亮并且处于不能接收或发射电磁信号的非导通状态。 每个光波导的一个边缘与接地平面相邻,并且每个光波导上的天线元件与所述接地平面间隔开等于四个波长的距离,在该频率处,每个所述光子受控天线元件被设计 操作。 天线元件在平行于与所述接地平面相对的所述波导的方向上辐射和接收信号。
    • 6. 发明授权
    • Broadband printed circuit antenna with direct feed
    • 宽带印刷电路天线,直接馈电
    • US4719470A
    • 1988-01-12
    • US733612
    • 1985-05-13
    • Robert E. Munson
    • Robert E. Munson
    • H01Q9/06H01Q21/06H01Q1/38H01Q1/48
    • H01Q9/065H01Q21/062
    • A relatively broadband printed circuit antenna structure includes a dielectric sheet having printed circuit-like conductive structures printed on both sides in predetermined registration with one another. A traditional non-radiating microstrip transmission line structure extends from a common r.f. feedpoint to at least one terminal end portion. However, apertures disposed within the underlying (or overlying) conductive reference surface of the double-cladded printed circuit board in the vicinity of each terminal end cause substantial r.f. radiation to occur over a relatively broader bandwidth than with a more traditional microstrip antenna radiator structure. In one embodiment, the aperture in the microstrip ground plane itself becomes a radiating aperture due to the transmission line currents flowing within the ground plane. In other embodiments, the terminal end portion of the microstrip transmission line becomes a monopole radiator when it is encompassed by an aperture or opening in the pattern of the printed ground plane. A conductive reflector surface may also be disposed about one-fourth wavelength behind the printed ground plane--unless radiation directed away from either side of the antenna structure is desired.
    • 相对宽带的印刷电路天线结构包括具有印刷电路状的导电结构的电介质片,其印刷在两侧并且彼此预先配准。 传统的非辐射微带传输线结构从普通的r.f. 馈送点至少一个终端部分。 然而,布置在双包层印刷电路板的每个终端附近的下面(或上覆)导电参考表面内的孔导致相当大的r.f。 相对于更传统的微带天线辐射器结构,辐射发生在比较宽的带宽上。 在一个实施例中,由于传输线电流在接地平面内流动,微带接地层中的孔径本身变成辐射孔。 在其他实施例中,当微带传输线的终端部分被印刷的接地平面的图案中的孔或开口所包围时变为单极辐射器。 导电反射器表面也可以布置在印刷接地平面后面的约四分之一波长处,除非期望从天线结构的任一侧远离的辐射。
    • 7. 发明授权
    • Monolithic microwave integrated circuit with integral array antenna
    • 具整体阵列天线的单片微波集成电路
    • US4490721A
    • 1984-12-25
    • US565516
    • 1983-12-27
    • Ronald J. StocktonRobert E. Munson
    • Ronald J. StocktonRobert E. Munson
    • H01Q1/38H01Q3/26H01P3/08
    • H01Q3/26H01Q1/38
    • A monolithic microwave integrated circuit including an integral array antenna. The system includes radiating elements, feed network, phasing network, active and/or passive semiconductor devices, digital logic interface circuits and a microcomputer controller simultaneously incorporated on a single semi-insulating GaAs substrate by means of a controlled fabrication process sequence.The resulting integrated circuit structure built upon a semi-insulating GaAs substrate provides a unique monolithic structure capable not only of phase-shifting, amplifying or otherwise controlling and conducting r.f. electrical signals but also capable of directly radiating/receiving r.f. electromagnetic emanations propagated to/from the integral antenna elements of the monolithic structure.
    • 包括整体阵列天线的单片微波集成电路。 该系统包括辐射元件,馈电网络,定相网络,有源和/或无源半导体器件,数字逻辑接口电路和微控制器控制器,其通过受控的制造工艺顺序同时并入在单个半绝缘GaAs衬底上。 所形成的半绝缘GaAs衬底的集成电路结构提供了独特的单片结构,不仅可以进行相移,放大或以其他方式控制和导通r.f. 电信号,但也能直接辐射/接收r.f. 电磁发射传播到整体式结构的整体天线元件/从整体天线元件传播。
    • 10. 发明授权
    • Microstrip reflectarray for satellite communication and radar
cross-section enhancement or reduction
    • 用于卫星通信和雷达横截面增强或减少的微带反射阵列
    • US4684952A
    • 1987-08-04
    • US423307
    • 1982-09-24
    • Robert E. MunsonHussain A. HaddadJohn W. Hanlen
    • Robert E. MunsonHussain A. HaddadJohn W. Hanlen
    • H01Q3/00H01Q3/46H01Q21/06H01Q1/38
    • H01Q21/065H01Q3/46
    • A passive array of resonantly-dimensioned microstrip antenna radiator patches are closely spaced (i.e., less than one-tenth wavelength) above a ground plane and individually associated with transmission line segments terminated so as to cause the overall array to receive an incident r.f. electromagnetic field, to convert the received field into r.f. electrical currents which flow along the transmission lines and are absorbed by the terminations or reflected therefrom. In the latter case, the reflected r.f. energy is re-transmitted in a predetermined direction as a re-directed r.f. electromagnetic field. The presently preferred embodiment is a relatively thin, flexible and thus conformable layered structure formed by selectively etching conductive material from one side of a metallically cladded dielectric sheet. For satellite communication, a flat reflectarray may be associated with a primary r.f. transmitter/receiver structure disposed at a focal area or spot of the reflectarray having an appropriately phased aperture (e.g., parabolic). For radar cross-section enhancement or reduction, the reflectarray aperture is phased so as to retro-reflect incident r.f. fields or so as to scatter, otherwise misdirect or absorb (e.g., by using lossy resistive transmission line terminations) the incident r.f. field.
    • 共振尺寸的微带天线辐射体贴片的无源阵列在接地平面之上紧密间隔(即,小于十分之一波长),并且单独地与终止的传输线段相关联,以使整个阵列接收入射的r.f。 电磁场,将接收的场转换成r.f. 沿着传输线流动并被终端吸收或从其反射的电流。 在后一种情况下,反射的r.f. 能量作为重定向的r.f以预定的方向重新传送。 电磁场。 目前优选的实施例是通过从金属包覆的电介质片的一侧选择性地蚀刻导电材料而形成的相对薄的,柔性的并且因此适形的分层结构。 对于卫星通信,平坦的反射阵可能与主要的r.f相关。 发射器/接收器结构设置在具有适当定相孔(例如,抛物面)的反射阵列的聚焦区域或光点处。 对于雷达横截面增强或减小,反射阵列孔径被分阶段反射以反射入射r.f。 场或散射,否则误导或吸收(例如,通过使用有损电阻式传输线终端)事件r.f. 领域。