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    • 3. 发明公开
    • POWER DUAL-BAND ROTARY JOINT OPERATING ON TWO DIFFERENT BANDS
    • 与操作双频旋转连接在两个不同的频段
    • EP2601706A1
    • 2013-06-12
    • EP11738972.6
    • 2011-07-28
    • G.E.M. Elettronica S.r.L.
    • MORINI, AntonioMALASPINA, VincenzoPANICHI, Paolo
    • H01P1/06H01P1/16
    • H01P1/062H01P1/066H01P1/069H01P1/16
    • Power dual-band rotary joint simultaneously operating on two frequency bands, A and B, made up of a couple of transducers, each between two rectangular waveguides, respectively operating on bands A and B, and a nested coaxial waveguide. The nested coaxial waveguide is made up of two concentric cylindric waveguides. The transducers are conceived in such a way that only modes with azimuthal symmetry are excited. The nested coaxial waveguide dimensions are chosen so that, on band B, the TM01 mode can propagate in the circular waveguide delimited by the internal surface of the smaller cylinder. The external surface of the smaller cylinder is the internal conductor of the coaxial working on band A, while the internal surface of the bigger cylinder is the external conductor of the same coaxial. The two transducers are connected through the nested waveguide. This connection system also contains a mechanism making possible that each transducer can rotate with respect to the other, as well as two chokes necessary to restore the electromagnetic continuity cut-off by the breaks. As the symmetry of the modal transducers makes possible the excitation of the only TM01 modes on band B and TEM modes on band A and that other modes, though above cutoff, are not excited at all, it allows that the electromagnetic behaviour is quite independent from the rotation angle of the rotary joint.
    • 6. 发明公开
    • WAVEGUIDE CONVERSION DEVICE, WAVEGUIDE ROTARY JOINT, AND ANTENNA DEVICE
    • 天竺葵UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG UNG
    • EP1677381A1
    • 2006-07-05
    • EP04792649.8
    • 2004-10-20
    • MURATA MANUFACTURING CO., LTD.
    • OKANO, Takeshi, c/o Murata Manufacturing Co., Ltd.NAGAI, Tomohiro, c/o Murata Manufacturing Co., LtdHIRATSUKA, Toshiro, Murata Manufacturing Co., Ltd.
    • H01P1/162H01P1/04H01P5/02H01P5/08H01Q13/02
    • H01P5/082H01P1/066H01Q13/06
    • To improve the transmission efficiency of a necessary transmission mode by providing an unnecessary-wave suppression groove that prevents an unnecessary transmission mode from being excited at a mode conversion part between a rectangular waveguide and a circular waveguide.
      A rectangular waveguide 2 is connected to a circular waveguide 4 at right angles, and an unnecessary-wave suppression groove 5 that extends along tube walls 2B, 2C, and 2D of the rectangular waveguide 2 and a tube wall 4A of the circular waveguide 4 is provided at a mode conversion part between the rectangular waveguide 2 and the circular waveguide 4. Thus, the unnecessary-wave suppression groove 5 can prevent an unnecessary TE 11 mode from being excited in the circular waveguide 4 due to electromagnetic waves of the TE 10 mode that transmit through the rectangular waveguide 2, thereby reducing conversion loss due to the TE 11 mode. Accordingly, electromagnetic waves of the TM 01 mode can be efficiently excited in the circular waveguide 4, and signals can be stably transmitted between the waveguides 2 and 4.
    • 通过提供防止在矩形波导和圆形波导之间的模式转换部分激发不必要的传输模式的不必要的波浪抑制槽来提高所需传输模式的传输效率。 矩形波导管2以直角连接到圆形波导管4,并且沿着矩形波导管2的管壁2B,2C和2D以及圆形波导管4的管壁4A延伸的不需要的波浪抑制槽5是 设置在矩形波导2和圆形波导4之间的模式转换部分。因此,不需要波抑制槽5可以防止由于TE 10模式的电磁波而在圆形波导4中激发不必要的TE 11模式 其通过矩形波导2传输,从而减少由于TE 11模式引起的转换损耗。 因此,可以在圆形波导4中有效地激励TM 01模式的电磁波,并且可以在波导2和4之间稳定地传输信号。
    • 8. 发明公开
    • Compact amplitude and phase trimmer
    • Kompakter Amplituden和Phasentrimmer
    • EP2889950A1
    • 2015-07-01
    • EP14196599.6
    • 2014-12-05
    • Honeywell International Inc.
    • Hoover, John C.
    • H01P1/06H01P1/162H01P1/17H01P1/18H01P1/22H01P5/04
    • H01P1/182H01P1/066H01P1/162H01P1/165H01P1/173H01P1/222H01P5/04
    • In some examples, a device includes a waveguide transition section comprising a first mode suppressor, an attenuation section coupled to the first waveguide transition section via a first adjustable rotation joint, wherein the attenuation section is operable to attenuate the electromagnetic signal, and a first quarter-wave plate section coupled to the attenuation section, wherein the first quarter-wave plate section is operable to introduce a first differential phase shift between a first mode of the electromagnetic signal and a second mode of the electromagnetic signal. The device also includes a second quarter-wave plate section coupled to the first quarter-wave plate section via a second adjustable rotation joint, wherein the second quarter-wave plate section is operable to introduce a second differential phase shift between the second mode of the electromagnetic signal and the first mode of the electromagnetic signal.
    • 在一些示例中,器件包括波导过渡部分,其包括第一模式抑制器,经由第一可调节旋转接头耦合到第一波导过渡部分的衰减部分,其中衰减部分可操作以衰减电磁信号,以及第一季度 耦合到所述衰减部分的波片部分,其中所述第一四分之一波片部分可操作以在所述电磁信号的第一模式和所述电磁信号的第二模式之间引入第一差分相移。 该装置还包括通过第二可调节旋转接头联接到第一四分之一波片板部分的第二四分之一波片部分,其中第二四分之一波片部分可操作以在第二四分之一波片板部分的第二模式之间引入第二差分相移 电磁信号和电磁信号的第一模式。
    • 9. 发明公开
    • Orthomodenkoppler für ein Antennensystem
    • 用于天线系统的正交耦合器
    • EP2535978A1
    • 2012-12-19
    • EP12004512.5
    • 2012-06-15
    • Astrium GmbH
    • Wolf, HelmutSchneider, Michael, Dr.
    • H01P1/161
    • H01P1/161H01P1/066H01P1/067H01P1/171H01P1/173
    • Die Erfindung beschreibt einen Orthomodenkoppler (100) für ein Antennensystem, insbesondere für eine Multifeed-Antenne. Der erfindungsgemäße Orthomodenkoppler umfasst einen ersten Signalhohlleiter (1) für ein erstes RF-Signal, welches sich in dem ersten Signalhohlleiter längs einer ersten Achse ausbreiten kann, sowie einen zweiten Signalhohlleiter (2) für ein zweites RF-Signal, welches sich in dem zweiten Signalhohlleiter längs einer zweiten Achse ausbreiten kann, wobei die zweite Achse parallel zu der ersten Achse angeordnet ist. Weiterhin umfasst der Orthomodenkoppler einen Septumpolarisator (30), in den der erste und der zweite Signalhohlleiter (1, 2) münden, und einen gemeinsamen Signalhohleiter (3) mit einer dritten Achse längs der sich ein Sende- und Empfangssignal ausbreiten kann, wobei die dritte Achse parallel zu der ersten und der zweiten Achse verläuft, und wobei der gemeinsame Signalhohlleiter (3) mit dem Septumpolarisator (30) gekoppelt ist. Der erfindungsgemäße Orthomodenkoppler zeichnet sich dadurch aus, dass der gemeinsame Signalhohlleiter (3) einen weiteren Polarisator (10) umfasst.
    • 本发明描述了用于天线系统的正模式耦合器(100),特别是用于多馈天线的正模式耦合器(100)。 所述Orthomodenkoppler发明包括用于在所述第一信号波导的第一RF信号可以纵向延伸的第一轴的第一信号波导(1),和一个第二信号波导(2)用于在第二信号波导的第二RF信号 可以沿着第二轴传播,其中第二轴平行于第一轴布置。 此外,Orthomodenkoppler包括Septumpolarisator(30),其中,所述第一和第二信号波导(1,2)打开,并且共用信号空心导体(3)具有第三轴线的发射和接收信号能够沿其传播,其中,所述第三 平行于第一轴和第二轴的轴,并且其中公共信号波导(3)耦合到隔膜发生器(30)。 根据本发明的正交耦合器的特征在于公共信号波导(3)包括另一个偏振器(10)。
    • 10. 发明公开
    • ELECTROMAGNETIC COUPLING
    • 电磁耦合
    • EP1454378A1
    • 2004-09-08
    • EP02804695.1
    • 2002-11-18
    • Raytheon Company
    • PARK, Pyong, K.
    • H01P5/08
    • H01P5/085H01P1/066
    • An orthogonal electrical coupling relies on electromagnetic coupling for the inner connection, as opposed to direct contact between conductors. A conductor on one of the lines is connected to a ground plane which is adjacent ot a resonant slot. Microwave energy is coupled to the slot, thereby exciting the slot. A second conductor is on the opposite side of the ground plane from the first conductor. Microwave energy from the excited resonant slot passes to the second conductor, thereby allowing contactless interconnection between the first conductor and the second conductor. The coupling may emphasize certain modes of propagation relative to other possible modes of propagation. Specifically, the ground plane and slot may be enclosed in a cavity of a size such that the cavity does not support any natural mode propagation inside the cavity. Instead, the coupling may have a cavity in which a transverse electromagnetic (TEM) mode is propagated.