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    • 62. 发明授权
    • Polarized antenna having longitudinal shunt slotted and rotational
series slotted feed plates
    • 具有纵向分流开槽和旋转系列开槽进料板的极化天线
    • US5473334A
    • 1995-12-05
    • US279355
    • 1994-07-21
    • Hung Y. YeePhillip N. Richardson
    • Hung Y. YeePhillip N. Richardson
    • H01Q21/00H01Q13/12H01Q15/24
    • H01Q21/0043
    • An antenna for transmitting rf energy. A polarizer for selectively polarizing the rf energy is operatively connected to a longitudinal shunt slotted plate for radiating rf energy therethrough. A rotational series slotted plate is operatively connected to the longitudinal shunt slotted plate for feeding the rf energy thereto. The plate has slots arranged in columns. First and second dual end slot array feeds are operatively connected to first and second columns of series slots of the rotational series slotted plate, said feeds having first and second input tee junctions. A manifold is operatively connected to the first and second input tee junctions for feeding the rf energy to first and second columns of the slots, the first and second columns of slots having, respectively, n1 and n2 numbers of slots with n1>n2. The manifold includes a power divider, and first and second waveguide lengths connected to the power divider for receiving rf energy. The first waveguide length is connected to the first column (n1) and the second waveguide length is connected to the second column (n2) having a length equal to (n1-n2 ).lambda..sub.g /2.
    • 用于传输射频能量的天线。 用于选择性地偏振rf能量的偏振器可操作地连接到纵向分流开槽板,用于辐射rf能量通过其中。 旋转系列开槽板可操作地连接到纵向分流开槽板,用于将rf能量馈送到其上。 该板具有排成列的槽。 第一和第二双端槽阵列进料可操作地连接到旋转系列槽板的第一和第二列的串联槽,所述进料具有第一和第二输入三通接头。 歧管可操作地连接到第一和第二输入三通结,用于将射频能量馈送到第一和第二列的槽,第一和第二槽的槽分别具有n1和n2个数量的具有n1> n2的时隙。 歧管包括功率分配器,连接到功率分配器的第一和第二波导长度用于接收能量。 第一波导长度连接到第一列(n1),第二波导长度连接到长度等于(n1-n2)λg/ 2的第二列(n2)。
    • 63. 发明授权
    • Variable circular polarization antenna having parasitic Z-shaped dipole
    • 具有寄生Z形偶极子的可变圆极化天线
    • US4899165A
    • 1990-02-06
    • US261049
    • 1988-10-20
    • John L. Schadler
    • John L. Schadler
    • H01Q11/14H01Q13/12
    • H01Q13/12H01Q11/14
    • A specially designed, Z-shaped, parasitic dipole is spaced radially outwardly from the slot provided in a cylindrical antenna; a controlled amount of energy which is in a horizontally polarized direction is coupled to the Z-shaped dipole so as to radiate energy into the vertical plane, thus creating a variable circularly polarized antenna capable of adding a selectable amount of vertical component to the horizontal in quadrature; since the dipole element, which parasitically develops its polarized energy, is in the same horizontal plane as the polarized energy emanating from the slot, a good, i.e. constant, axial ratio is maintained throughout the elevation pattern.
    • 特别设计的Z形寄生偶极子从设置在圆柱形天线中的槽径向向外间隔开; 在水平极化方向的受控量的能量耦合到Z形偶极子,以将能量辐射到垂直平面中,从而产生可变的圆极化天线,其能够向水平方向添加可选择量的垂直分量 正交 由于寄生地产生其极化能量的偶极子元件处于与从狭缝发出的极化能量相同的水平面,因此在整个仰角图案中保持良好的,即恒定的轴向比。
    • 65. 发明授权
    • Z slot antenna
    • Z插槽天线
    • US3936836A
    • 1976-02-03
    • US491916
    • 1974-07-25
    • Myron S. WheelerHall R. McComas
    • Myron S. WheelerHall R. McComas
    • H01Q21/00H01Q21/20H01Q13/12
    • H01Q21/0056H01Q21/0062H01Q21/205
    • An improved antenna of a coaxial type utilizing Z-shaped slots disposed in the outer conductor to provide an omnidirectional antenna pattern. Current coupling to the slots is achieved by means of the transverse portion of the Z slot. Detuning effects due to the presence of a transmission line are compensated for by dielectrically loading the slots with a dielectric cover over the coaxial line and/or by lengthening the longitudinal arms of the Z. The longitudinal spacing between each slot and the length of the transverse portion of each slot are chosen while considering all line effects to obtain the required phase and amplitude relationships. The antenna consequently requires no additional coupling, tuning or phasing devices mounted within or without the coaxial line.
    • 利用设置在外部导体中的Z形槽来提供全向天线图案的同轴型改进的天线。 通过Z槽的横向部分实现与槽的电流耦合。 由于传输线的存在导致的失谐效应通过在同轴线上介电覆盖层的介电加载和/或通过延长Z的纵向臂来补偿槽。每个槽之间的纵向间距和横向的长度 选择每个槽的部分,同时考虑所有线效应以获得所需的相位和幅度关系。 因此,天线不需要在同轴线内或没有安装的附加耦合,调谐或定相装置。