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公开(公告)号：US5572172A
公开(公告)日：1996-11-05
申请号：US513163
申请日：1995-08-09
摘要： A 180.degree. power divider accepts an input signal and splits it into two output signals that are equal in amplitude and differ in phase by 180.degree.. In a first region, an unbalanced input signal travels along a trace on a circuit surface of a substrate. On the opposite surface is a ground plane. In a second region, the ground plane tapers to a width that is substantially equal to the width of the signal trace. As a result, opposite the signal trace is a return signal trace of substantially the same width. In this region, the signal is a balanced signal, and for the current flowing in the signal trace, there is an equal but opposite current flowing in the return signal trace on the opposite side. In a third region, the return signal trace is brought to the circuit surface of the substrate and a second ground plane is provided on the opposite surface. This second ground plane is floating with respect to the first ground plane. The return signal differs in phase from the other signal by 180.degree..
摘要翻译： 180°功率分配器接收输入信号并将其分为两个输出信号，幅度相等，相位相差180°。 在第一区域中，不平衡输入信号沿着衬底的电路表面上的迹线行进。 在相对的表面是接地平面。 在第二区域中，接地平面逐渐变细到基本上等于信号迹线宽度的宽度。 结果，与信号迹线相反的是基本上相同宽度的返回信号迹线。 在该区域中，信号是平衡信号，并且对于在信号迹线中流动的电流，在相对侧的返回信号迹线中流过相等但相反的电流。 在第三区域中，返回信号迹线被带到基板的电路表面，并且在相对表面上设置第二接地平面。 该第二接地平面相对于第一接地平面漂浮。 返回信号的相位与其他信号相差180°。
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公开(公告)号：US5434548A
公开(公告)日：1995-07-18
申请号：US218169
申请日：1994-03-28
摘要： A coaxial-waveguide assemblage is disclosed herein of the invention includes a first coaxial transmission line having a first inner and a first outer conductor. The inventive assemblage further includes a waveguide electromagnetically coupled to the first coaxial transmission line, where an inner surface of the waveguide bounds a signal propagation space. The waveguide is also electromagnetically coupled to a second coaxial transmission having a second inner and a second outer conductor. The inner conductor of the second coaxial transmission line is disposed to rotate about a first vertical axis, thereby enabling the second coaxial transmission line to be connected to a rotating antenna. In a particular implementation the coaxial-waveguide assemblage is disposed within a rotary joint operative to couple electromagnetic energy between first and second signal ports. An axially elongated dielectric sleeve, disposed about the second inner conductor, will preferably be dimensioned to extend into the waveguide propagation space. The rotary joint will generally include a bearing arrangement interposed between the second outer conductor and the axially elongated dielectric sleeve of the second coaxial transmission line. Tuning of the coaxial-waveguide assemblage is facilitated by a tuning cavity in communication with the propagation space.
摘要翻译： 本文公开的同轴波导组合包括具有第一内部和第一外部导体的第一同轴传输线。 本发明的组合还包括电磁耦合到第一同轴传输线的波导，其中波导的内表面限定信号传播空间。 波导也电磁耦合到具有第二内部和第二外部导体的第二同轴传输。 第二同轴传输线的内导体设置成围绕第一垂直轴旋转，从而使第二同轴传输线能够连接到旋转天线。 在特定的实施方案中，同轴波导组合设置在旋转接头内，用于在第一和第二信号端口之间耦合电磁能。 设置在第二内部导体周围的轴向细长的介电套筒将优选地被设计成延伸到波导传播空间中。 旋转接头通常包括插入在第二外部导体和第二同轴传输线的轴向细长介电套筒之间的轴承装置。 通过与传播空间通信的调谐腔来促进同轴波导组合的调谐。
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公开(公告)号：US5828348A
公开(公告)日：1998-10-27
申请号：US532921
申请日：1995-09-22
摘要： A dual-band octafilar helix antenna operational at two frequencies, while maintaining a relatively small package size. The dual-band octafilar antenna is manufactured by disposing radiators and a feed network onto a flexible substrate and forming the substrate into a cylindrical shape to obtain the helical configuration. The dual-band octafilar helix antenna includes four active radiators which are matched to a first frequency and disposed on a radiator portion of the flexible substrate. Four additional radiators, which may be either passive or active radiators, are matched to a second frequency, are also disposed on the radiator portion of the substrate and interleaved with the active radiators. At least one feed network is provided on a feed portion of the substrate that provides 0.degree., 90.degree., 180.degree., and 270.degree. signals to active radiators. The sets of radiators and associated feed networks may be formed on opposing sides of a single substrate or on spaced apart layers in a multi-layered support substrate design.
摘要翻译： 双频八方螺旋天线在两个频率下工作，同时保持相对较小的封装尺寸。 双频八边形天线通过将散热器和馈电网络布置在柔性基板上并将基板形成为圆柱形以获得螺旋形结构来制造。 双频八边形螺旋天线包括四个与第一频率匹配的有源辐射器，并设置在柔性基板的散热器部分上。 可以是无源或有源辐射器的四个额外的散热器与第二频率相匹配，也设置在衬底的散热器部分上并与有源散热器交错。 在基板的进料部分上提供至少一个进料网络，其向主动散热器提供0°，90°，180°和270°信号。 散热器和相关馈电网络的组可以形成在单个衬底的相对侧上或者在多层支撑衬底设计中形成在间隔开的层上。
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公开(公告)号：US5793338A
公开(公告)日：1998-08-11
申请号：US513317
申请日：1995-08-09
CPC分类号： H01Q11/08
摘要： A quadrifilar antenna is comprised of four radiators which, in the preferred embodiment, are etched onto a radiator portion of a microstrip substrate. The microstrip substrate is formed into a cylindrical shape such that the radiators are helically wound. Also etched onto the microstrip substrate is a feed network that provides 0.degree., 90.degree., 180.degree. and 270.degree. signals to the antenna radiators. The feed network utilizes a combination of one or more branch line couplers and one or more power dividers to accept an input signal from a transmitter and to provide therefrom the 0.degree., 90.degree., 180.degree. and 270.degree. signals needed to drive the antenna. For receive operations, the feed network utilizes these same components to receive the 0.degree., 90.degree., 180.degree. and 270.degree. signals from the antenna radiators and to provide a single output signal to a communications receiver. The power divider accepts an input signal and provides therefrom two output signals differing from each other in phase by 180.degree.. The branch line coupler accepts an input signal and provides therefrom two output signals differing from one another in phase by 90.degree..
摘要翻译： 四极天线由四个辐射器组成，在优选实施例中，辐射器被蚀刻到微带基板的散热器部分上。 微带基板形成为圆柱形，使得散热器被螺旋缠绕。 也在微带基板上蚀刻的是向天线辐射器提供0°，90°，180°和270°信号的馈电网络。 馈电网络使用一个或多个支线耦合器和一个或多个功率分配器的组合来接收来自发射器的输入信号，并从其提供驱动天线所需的0°，90°，180°和270°信号。 对于接收操作，馈电网络利用这些相同的组件从天线辐射器接收0°，90°，180°和270°信号，并向通信接收机提供单个输出信号。 功率分配器接收输入信号，并提供相互相差180°的两个输出信号。 分支线耦合器接受输入信号，并从其中提供相差90°的彼此不同的两个输出信号。
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公开(公告)号：US06694150B1
公开(公告)日：2004-02-17
申请号：US09503076
申请日：2000-02-12
IPC分类号： H04M100
CPC分类号： H01Q21/28 , G01S19/36 , H01Q1/242 , H01Q21/30 , H04B1/00 , H04B1/3805 , H04B1/406 , H04W64/00 , H04W84/18 , H04W88/02
摘要： A wireless telephone (102) includes a telephone transceiver (104), GPS receiver (106), and Bluetooth transceiver (108). The telephone antenna (110) is external, and the Bluetooth antenna (120) is internal. The GPS receiver (106) may be driven by its own internal antenna (326), or via a signal separator (116), (216), by either of the other antennas ((110), (120).
摘要翻译： 无线电话（102）包括电话收发机（104），GPS接收机（106）和蓝牙收发机（108）。 电话天线（110）是外部的，蓝牙天线（120）是内部的。 GPS接收器（106）可以由其自身的内部天线（326）或经由信号分离器（116），（216）由其他天线（（110），（120）中的任一个驱动。
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