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1.发明授权公开(公告)号：US07889026B2
公开(公告)日：2011-02-15
申请号：US11971016
申请日：2008-01-08
IPC分类号： H03H7/00
CPC分类号： H01F21/08 , H01F29/146 , H03H5/12 , Y10T29/4902
摘要： The electrically tunable inductive device includes an electromagnet including an electromagnet core and a bias or tuning coil cooperating therewith to define opposing magnetic poles for generating a quiescent magnetic field that may be varied. An inductor is tunable based upon the variable magnetic field and includes an inductor core having a toroidal shape and fixed at a position adjacent the opposing magnetic poles of the electromagnet, and an inductor or signal coil is around at least a portion of the inductor core. The electromagnet core may include a pair of opposing legs and a bight portion therebetween defining a horseshoe shape. The inductor core may be positioned between ends of the opposing legs of the electromagnet core, and the tuning coil may surround the bight portion of the electromagnet core. The electrically tunable inductive device may have the combination of fine precision, high speed and high power handling, useful for tunable RF filters.
摘要翻译： 电可调电感装置包括电磁体，其包括电磁铁芯和与其配合的偏置或调谐线圈，以限定相对的磁极，用于产生可以变化的静态磁场。 电感器基于可变磁场是可调谐的，并且包括具有环形形状并且固定在与电磁体的相对磁极相邻的位置处的位置的电感器芯，并且电感器或信号线圈围绕电感器芯的至少一部分。 电磁铁芯可以包括一对相对的腿和位于其间的弯曲部分，其间形成马蹄形。 电感器芯可以位于电磁铁芯的相对腿的端部之间，并且调谐线圈可以围绕电磁铁芯的弯曲部分。 电可调电感器件可以具有精密，高速和高功率处理的组合，对可调RF滤波器是有用的。
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公开(公告)号：US20090146772A1
公开(公告)日：2009-06-11
申请号：US11951673
申请日：2007-12-06
CPC分类号： H01F17/062 , H01F1/34 , H01F3/10 , H01F2003/103 , Y10T29/49073
摘要： The radio frequency (RF) inductor includes a core being electrically non-conductive and ferrimagnetic, and having a toroidal shape, and a wire coil thereupon. At least one permanent magnet body is at a fixed position within the interior of the core, and an electrically conductive RF shielding layer is on the at least one permanent magnet body. The core may be ferrite for example. The electrically conductive RF shielding layer may be a conductive plating layer or a metal foil surrounding the permanent magnet body, for example. A magnetic field from the permanent magnet is applied to the inductor core to reduce losses, and the permanent magnet may be enclosed within the conductive shield to keep RF fields out. The inductor may be made small and have increased Q and resulting efficiency. The RF inductor may be applicable to RF communication circuits, for example, as an antenna coupler.
摘要翻译： 射频（RF）电感器包括具有非导电性和亚铁磁性，并且具有环形形状的芯和其上的线圈。 至少一个永磁体位于芯内部的固定位置，并且导电RF屏蔽层位于至少一个永磁体上。 芯可以是例如铁素体。 例如，导电RF屏蔽层可以是导电镀层或围绕永磁体的金属箔。 来自永磁体的磁场被施加到电感器芯以减少损耗，并且永久磁体可以被封装在导电屏蔽内以保持RF场输出。 可以使电感器变小并且增加Q并产生效率。 RF电感器可以适用于例如天线耦合器的RF通信电路。
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公开(公告)号：US07940151B2
公开(公告)日：2011-05-10
申请号：US11951673
申请日：2007-12-06
IPC分类号： H01F21/00
CPC分类号： H01F17/062 , H01F1/34 , H01F3/10 , H01F2003/103 , Y10T29/49073
摘要： The radio frequency (RF) inductor includes a core being electrically non-conductive and ferrimagnetic, and having a toroidal shape, and a wire coil thereupon. At least one permanent magnet body is at a fixed position within the interior of the core, and an electrically conductive RF shielding layer is on the at least one permanent magnet body. The core may be ferrite for example. The electrically conductive RF shielding layer may be a conductive plating layer or a metal foil surrounding the permanent magnet body, for example. A magnetic field from the permanent magnet is applied to the inductor core to reduce losses, and the permanent magnet may be enclosed within the conductive shield to keep RF fields out. The inductor may be made small and have increased Q and resulting efficiency. The RF inductor may be applicable to RF communication circuits, for example, as an antenna coupler.
摘要翻译： 射频（RF）电感器包括具有非导电性和亚铁磁性的芯，并且具有环形形状，并且其上具有线圈。 至少一个永磁体位于芯内部的固定位置，并且导电RF屏蔽层位于至少一个永磁体上。 芯可以是例如铁素体。 例如，导电RF屏蔽层可以是导电镀层或围绕永磁体的金属箔。 来自永磁体的磁场被施加到电感器芯以减少损耗，并且永久磁体可以被封装在导电屏蔽内以保持RF场输出。 可以使电感器变小并且增加Q并产生效率。 RF电感器可以适用于例如天线耦合器的RF通信电路。
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4.发明申请公开(公告)号：US20090174501A1
公开(公告)日：2009-07-09
申请号：US11971016
申请日：2008-01-08
CPC分类号： H01F21/08 , H01F29/146 , H03H5/12 , Y10T29/4902
摘要： The electrically tunable inductive device includes an electromagnet including an electromagnet core and a bias or tuning coil cooperating therewith to define opposing magnetic poles for generating a quiescent magnetic field that may be varied. An inductor is tunable based upon the variable magnetic field and includes an inductor core having a toroidal shape and fixed at a position adjacent the opposing magnetic poles of the electromagnet, and an inductor or signal coil is around at least a portion of the inductor core. The electromagnet core may include a pair of opposing legs and a bight portion therebetween defining a horseshoe shape. The inductor core may be positioned between ends of the opposing legs of the electromagnet core, and the tuning coil may surround the bight portion of the electromagnet core. The electrically tunable inductive device may have the combination of fine precision, high speed and high power handling, useful for tunable RF filters.
摘要翻译： 电可调电感装置包括电磁体，其包括电磁铁芯和与其配合的偏置或调谐线圈，以限定相对的磁极，用于产生可以变化的静态磁场。 电感器基于可变磁场是可调谐的，并且包括具有环形形状并且固定在与电磁体的相对磁极相邻的位置处的位置的电感器芯，并且电感器或信号线圈围绕电感器芯的至少一部分。 电磁铁芯可以包括一对相对的腿和位于其间的弯曲部分，其间形成马蹄形。 电感器芯可以位于电磁铁芯的相对腿的端部之间，并且调谐线圈可以围绕电磁铁芯的弯曲部分。 电可调电感器件可以具有精密，高速和高功率处理的组合，对可调RF滤波器是有用的。
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公开(公告)号：US07312758B2
公开(公告)日：2007-12-25
申请号：US11397280
申请日：2006-04-04
申请人： John S. Seybold
发明人： John S. Seybold
IPC分类号： H01Q1/24
摘要： The present invention concerns a dual gain antenna system 100 with an integrated system to control a matching network 214. The dual gain antenna system 100 comprises an antenna that includes a first helically shaped antenna element 104, a second vertical antenna element 106, and a base portion 101. The first antenna element 104 is disposed around a longitudinal axis of a dielectric rod 102 that contains a bore 205. The second antenna element 106 is disposed within the longitudinal axis of the dielectric rod bore 205. A sensor 215 detects when the second antenna element 106 is in the extended position and transmits a control signal to a matching system 214 that selectively controls the impedance matching network 214 between the antenna and the RF feed line 103.
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公开(公告)号：US06297764B1
公开(公告)日：2001-10-02
申请号：US09459837
申请日：1999-12-13
申请人： Terry Wormington , John S. Seybold , James Rhoa
发明人： Terry Wormington , John S. Seybold , James Rhoa
IPC分类号： G01S1358
CPC分类号： G01S7/4021 , G01S7/2921 , G01S7/36 , G01S7/4052 , G01S2007/4095
摘要： An electronic counter-measure receiver can be colocated with a threat simulator radar, which transmits a radar signal. As a pulsed-Doppler signal, this transmitted radar signal is sampled as a reference signal by the receiver to determine quadrature, coherent matched filter coefficients. A return signal is received and processed with the reference signal as quadrature signal components with the quadrature, coherent matched filter coefficients within a matched filter. The return signal is processed as a first intermediate frequency via a mixer and local oscillator and a second quadrature intermediate frequency via a digital local oscillator and mixer. A fast Fourier transform is performed to determine Doppler information. In a continuous wave transmission for sampling arbitrary but unevenly spaced in time pulses are generated from a pulse generator source internal to the receiver.
摘要翻译： 电子对抗接收机可以与发射雷达信号的威胁模拟雷达共同配置。 作为脉冲多普勒信号，该发射的雷达信号被接收机采样作为参考信号，以确定正交相干匹配滤波器系数。 接收并处理返回信号并用参考信号进行处理，作为匹配滤波器内的正交相干匹配滤波器系数的正交信号分量。 返回信号通过混频器和本地振荡器和第二正交中频通过数字本地振荡器和混频器被处理为第一中频。 执行快速傅立叶变换以确定多普勒信息。 在从接收器内部的脉冲发生器源产生的时间脉冲中的任意但不均匀间隔的连续波传输中。
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