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公开(公告)号：US20220239012A1
公开(公告)日：2022-07-28
申请号：US17708594
申请日：2022-03-30
申请人： Viasat Inc.
发明人： Donald L. Runyon , Anders Jensen
摘要： Disclosed is a shaped horn in conjunction with a dielectric tube for enhanced aperture directivity that can achieve a near optimum efficiency. The shaped horn provides additional mode control to provide an improved off-axis cross-polarization response. The horn shape can be individually optimized for isolated horns or for horns in a feed array. The feed array environment can produce results that lead to a different optimized shape than the isolated horn. Lower off axis cross-polarization can result in improved efficiency and susceptibility to interference.
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公开(公告)号：US11355855B2
公开(公告)日：2022-06-07
申请号：US16504669
申请日：2019-07-08
申请人： Viasat, Inc.
摘要： A waveguide architecture for a dual-polarized antenna including multiple antenna elements. Aspects are directed to dual-polarized antenna architectures where each antenna element includes a polarizer having an individual waveguide with dual-polarization signal propagation and divided waveguides associated with each basis polarization. The waveguide architecture may include unit cells having corporate waveguide networks associated with each basis polarization connecting each divided waveguide of the polarizers of each antenna element in the unit cell with a respective common waveguide. The waveguide networks may have waveguide elements located within the unit-cell boundary with a small or minimized inter-element distance. Thus, unit cells may be positioned adjacent to each other in a waveguide device assembly for a dual-polarized antenna array without increased inter-element distance between antenna elements of adjacent unit cells. Antenna waveguide ports may be connected to unit cell common waveguides using elevation and azimuth waveguide networks of the corporate type.
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公开(公告)号：US11329391B2
公开(公告)日：2022-05-10
申请号：US16924930
申请日：2020-07-09
申请人： VIASAT, INC.
发明人： Donald L. Runyon , Anders Jensen
摘要： Disclosed is a shaped horn in conjunction with a dielectric tube for enhanced aperture directivity that can achieve a near optimum efficiency. The shaped horn provides additional mode control to provide an improved off-axis cross-polarization response. The horn shape can be individually optimized for isolated horns or for horns in a feed array. The feed array environment can produce results that lead to a different optimized shape than the isolated horn. Lower off axis cross-polarization can result in improved efficiency and susceptibility to interference.
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公开(公告)号：US11095009B2
公开(公告)日：2021-08-17
申请号：US16870609
申请日：2020-05-08
申请人： VIASAT, INC.
发明人： Anders Jensen , John D. Voss , Donald L. Runyon
摘要： In an example embodiment, a waveguide device comprises: a first common waveguide; a polarizer section, the polarizer section including a conductive septum dividing the first common waveguide into a first divided waveguide portion and a second waveguide divided portion; a second waveguide coupled to the first divided waveguide portion of the polarizer section; a third waveguide coupled to the second divided waveguide portion of the polarizer section; and a dielectric insert. The dielectric insert includes a first dielectric portion partially filling the polarizer section. The conductive septum and the dielectric portion convert a signal between a polarized state in the first common waveguide and a first polarization component in the second waveguide and a second polarization component in the third waveguide.
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公开(公告)号：US10903580B2
公开(公告)日：2021-01-26
申请号：US16808952
申请日：2020-03-04
申请人： VIASAT, INC
发明人： Anders Jensen , Donald L. Runyon
摘要： An antenna includes a reflector and a waveguide assembly. The waveguide assembly includes a feed assembly and a support member that extends from behind the reflector to orient the feed assembly for direct illumination of the reflector. The waveguide assembly includes a first waveguide coupled to a first portion of a common waveguide, a second waveguide coupled to a second portion of the common waveguide, and a septum layer that includes a septum polarizer coupled between the common waveguide and the first and second waveguides.
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公开(公告)号：US20200006859A1
公开(公告)日：2020-01-02
申请号：US16504669
申请日：2019-07-08
申请人： Viasat, Inc.
摘要： A waveguide architecture for a dual-polarized antenna including multiple antenna elements. Aspects are directed to dual-polarized antenna architectures where each antenna element includes a polarizer having an individual waveguide with dual-polarization signal propagation and divided waveguides associated with each basis polarization. The waveguide architecture may include unit cells having corporate waveguide networks associated with each basis polarization connecting each divided waveguide of the polarizers of each antenna element in the unit cell with a respective common waveguide. The waveguide networks may have waveguide elements located within the unit-cell boundary with a small or minimized inter-element distance. Thus, unit cells may be positioned adjacent to each other in a waveguide device assembly for a dual-polarized antenna array without increased inter-element distance between antenna elements of adjacent unit cells. Antenna waveguide ports may be connected to unit cell common waveguides using elevation and azimuth waveguide networks of the corporate type.
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公开(公告)号：US10389035B2
公开(公告)日：2019-08-20
申请号：US15845780
申请日：2017-12-18
申请人： ViaSat, Inc.
摘要： A waveguide architecture for a dual-polarized antenna including multiple antenna elements. Aspects are directed to dual-polarized antenna architectures where each antenna element includes a polarizer having an individual waveguide with dual-polarization signal propagation and divided waveguides associated with each basis polarization. The waveguide architecture may include unit cells having corporate waveguide networks associated with each basis polarization connecting each divided waveguide of the polarizers of each antenna element in the unit cell with a respective common waveguide. The waveguide networks may have waveguide elements located within the unit-cell boundary with a small or minimized inter-element distance. Thus, unit cells may be positioned adjacent to each other in a waveguide device assembly for a dual-polarized antenna array without increased inter-element distance between antenna elements of adjacent unit cells. Antenna waveguide ports may be connected to unit cell common waveguides using elevation and azimuth waveguide networks of the corporate type.
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公开(公告)号：US10096906B2
公开(公告)日：2018-10-09
申请号：US15059214
申请日：2016-03-02
申请人： VIASAT, INC.
发明人： Anders Jensen , Donald L Runyon
摘要： An antenna may include a reflector and a multi-band feed assembly. A support member may be coupled to the multi-band feed assembly to orient the multi-band feed assembly for direct illumination of the reflector. The multi-band feed assembly may include first and second feeds, each having a respective septum polarizer coupled between a respective common waveguide and a respective pair of waveguides. A housing of the support member may contain the respective septum polarizers and the respective pairs of waveguides.
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公开(公告)号：US09136578B2
公开(公告)日：2015-09-15
申请号：US13707352
申请日：2012-12-06
申请人： ViaSat, Inc.
CPC分类号： H01Q1/02 , H01P1/00 , H01P5/12 , H01P11/001 , H01Q1/28 , H01Q13/02 , H01Q21/0037 , H01Q21/0075 , Y10T29/49002 , Y10T29/49016
摘要： In an example embodiment, an in-phase recombinant waveguide combiner/divider device can comprise: a single waveguide input; N waveguide outputs, wherein N is an integer greater than 2; a first waveguide dividing portion; a second waveguide dividing portion; a third waveguide dividing portion; and a waveguide combining portion. The waveguide combining portion can be configured to combine two signals that are each respectively received from the second waveguide dividing portion and third waveguide dividing portion. In general an in-phase recombinant waveguide combiner/divider can comprise more junctions than output ports of a conservative power divider network structure. In an example embodiment, for a N-way waveguide power divider, there can be at least N+1 waveguide junctions.
摘要翻译： 在一个示例性实施例中，同相重组波导组合器/分配器装置可以包括：单个波导输入; N波导输出，其中N是大于2的整数; 第一波导分路部; 第二波导分割部; 第三波导分路部; 和波导组合部分。 波导组合部分可以被配置为组合从第二波导分配部分和第三波导分割部分分别接收的两个信号。 通常，同相重组波导组合器/分配器可以包括比保守功率分配器网络结构的输出端口更多的结。 在示例实施例中，对于N路波导功率分配器，可以存在至少N + 1个波导结。
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公开(公告)号：US20180366801A1
公开(公告)日：2018-12-20
申请号：US16111534
申请日：2018-08-24
申请人： ViaSat, Inc.
发明人： Anders Jensen
CPC分类号： H01P1/161 , H01P1/173 , H01P3/123 , H01Q15/246 , H01Q19/132 , H01Q21/061 , H01Q21/24
摘要： Methods, systems, and devices are described that include one or more sidewall features to improve performance of a waveguide device. In particular, the sidewall features may be utilized within a polarizer section of a polarizer device such as a septum polarizers. The sidewall feature(s) may include recesses and/or protrusions. When a plurality of sidewall features are employed, the size, shape, spacing and kind (e.g., recess or protrusion) may vary according to a particular design.
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