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    • 2. 发明授权
    • Dielectric waveguide antenna
    • 介质波导天线
    • US08692731B2
    • 2014-04-08
    • US13092091
    • 2011-04-21
    • Jung Aun LeeMyeong Woo HanChul Gyun ParkMoonil KimSeung Ho ChoiKook Joo Lee
    • Jung Aun LeeMyeong Woo HanChul Gyun ParkMoonil KimSeung Ho ChoiKook Joo Lee
    • H01Q13/00
    • H01Q13/10H01P3/121H01P5/024H01Q13/06
    • Disclosed herein is a dielectric waveguide antenna including: a dielectric waveguide transmitting a signal applied from a power feeder; a dielectric waveguide radiator radiating the signal transmitted from the dielectric waveguide to the air through a first aperture; and a matching unit formed in a portion of the dielectric waveguide and controlling a serial reactance and a parallel reactance to thereby perform impedance matching between the dielectric waveguide radiator and the air, in order to reduce reflection generated in the first aperture during the radiation of the signal through the first aperture. Reflection in the aperture is reduced through the matching unit having various structures, thereby making it possible to improve characteristics of the dielectric waveguide antenna.
    • 本文公开了一种电介质波导天线,包括:传送从馈电器施加的信号的电介质波导; 电介质波导辐射器,其通过第一孔辐射从所述电介质波导发射到所述空气的信号; 以及形成在电介质波导的一部分中的匹配单元,并且控制串联电抗和并联电抗,从而在电介质波导辐射器和空气之间执行阻抗匹配,以便减少在辐射期间在第一孔径中产生的反射 信号通过第一个光圈。 通过具有各种结构的匹配单元减小孔径的反射,从而可以提高电介质波导天线的特性。
    • 9. 发明授权
    • High impedence structures for multifrequency antennas and waveguides
    • 多频天线和波导的高阻抗结构
    • US06628242B1
    • 2003-09-30
    • US09644876
    • 2000-08-23
    • Jonathan Bruce HackerMoonil KimJohn A. Higgins
    • Jonathan Bruce HackerMoonil KimJohn A. Higgins
    • H01Q1523
    • H01P3/12H01P1/2005H01Q9/0414H01Q15/008H01Q15/23H01Q21/061
    • A multi layered high impedance structure presents a high impedance to multiple frequency signals, with a different frequency for each layer. Each layer comprises a dielectric substrate, and an array of radiating elements such as parallel conductive strips or conductive patches on the substrate's top surface with a conductive layer on the bottom surface of the bottommost layer. The radiating elements of succeeding layers are vertically aligned with conductive vias extending through the substrates to connect the radiating elements to the ground plane. Each layer presents as a series of parallel resonant L-C circuits to an E field at a particular signal frequency, resulting in a high impedance surface at that frequency. The new structure can be used as the substrate for a microstrip patch antenna to provide an optimal electrical distance between the resonator and backplane at multiple frequencies. It can also be used in waveguides that transmit multiple signal frequencies signals in one polarization or that are cross-polarized. As a waveguide it maintains a near-uniform density E and H fields, resulting in near uniform signal power density across the waveguide's cross-section.
    • 多层高阻抗结构对多个频率信号呈现高阻抗,每层具有不同的频率。 每个层包括电介质基底,以及在基底顶表面上的辐射元件阵列,例如平行的导电条或导电贴片,在最底层的底表面上具有导电层。 后续层的辐射元件与延伸穿过衬底的导电通孔垂直对准,以将辐射元件连接到接地平面。 每个层在特定信号频率下呈现为E场的一系列并联谐振L-C电路,导致该频率处的高阻抗表面。 新结构可用作微带贴片天线的基板,以在多个频率上提供谐振器和背板之间的最佳电距离。 它也可以用于以一个极化或交叉极化传输多个信号频率信号的波导。 作为波导,它保持近均匀的密度E和H场,导致波导横截面上的近似均匀的信号功率密度。