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公开(公告)号：US08008982B2
公开(公告)日：2011-08-30
申请号：US12722156
申请日：2010-03-11
摘要： A system that incorporates teachings of the present disclosure may include, for example, an adaptive impedance matching network having an RF matching network coupled to at least one RF input port and at least one RF output port and comprising one or more controllable variable reactive elements. The RF matching network can be adapted to reduce a level of reflected power transferred from said at least one input port by varying signals applied to said controllable variable reactive elements. The one or more controllable variable reactive elements can be coupled to a circuit adapted to map one or more control signals that are output from a controller to a signal range that is compatible with said one or more controllable variable reactive elements. Additional embodiments are disclosed.
摘要翻译： 结合本公开的教导的系统可以包括例如具有耦合到至少一个RF输入端口和至少一个RF输出端口并且包括一个或多个可控可变无功元件的RF匹配网络的自适应阻抗匹配网络。 RF匹配网络可以适于通过改变施加到所述可控变量无功元件的信号来减少从所述至少一个输入端口传送的反射功率的电平。 一个或多个可控可变无功元件可以耦合到适于将从控制器输出的一个或多个控制信号映射到与所述一个或多个可控可变无功元件兼容的信号范围的电路。 公开了另外的实施例。
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32.发明授权Adaptive impedance matching apparatus, system and method with improved dynamic range 有权自适应阻抗匹配装置，系统和方法具有改善的动态范围公开(公告)号：US07852170B2
公开(公告)日：2010-12-14
申请号：US12287599
申请日：2008-10-10
CPC分类号： H04B1/0458 , H01Q1/243 , H01Q1/50 , H03H7/40 , H03H2007/386
摘要： An embodiment of the present invention provides an apparatus, comprising an RF matching network connected to at least one RF input port and at least one RF output port and including one or more voltage or current controlled variable reactive elements; a voltage detector connected to the at least one RF output port via a variable voltage divider to determine the voltage at the at least one RF output port and provide voltage information to a controller that controls a bias driving circuit which provides voltage or current bias to the RF matching network; a variable voltage divider connected to the voltage detector and implemented using a multi-pole RF switch to select one of a plurality of different resistance ratios to improve the dynamic range of the apparatus; and wherein the RF matching network is adapted to maximize RF power transferred from the at least one RF input port to the at least one RF output port by varying the voltage or current to the voltage or current controlled variable reactive elements to maximize the RF voltage at the at least one RF output port.
摘要翻译： 本发明的一个实施例提供了一种装置，包括连接到至少一个RF输入端口和至少一个RF输出端口并且包括一个或多个电压或电流控制的可变无功元件的RF匹配网络; 电压检测器，经由可变分压器连接到所述至少一个RF输出端口，以确定所述至少一个RF输出端口处的电压，并向控制器提供电压信息，所述控制器控制向所述至少一个RF输出端口提供电压或电流偏置的偏置驱动电路 射频匹配网络; 连接到所述电压检测器的可变分压器并且使用多极RF开关来选择多个不同电阻比之一来改善所述装置的动态范围; 并且其中所述RF匹配网络适于通过将所述电压或电流控制的可变无功元件的电压或电流变化来最大化RF电压来最大化从所述至少一个RF输入端口传输到所述至少一个RF输出端口的RF功率 所述至少一个RF输出端口。
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33.发明申请公开(公告)号：US20100201465A1
公开(公告)日：2010-08-12
申请号：US12711923
申请日：2010-02-24
CPC分类号： H01P1/16 , H01P1/20 , H01P1/2005 , H05K1/0234 , H05K1/0236 , H05K1/167
摘要： A parallel plate waveguide structure may be configured to suppress spurious propagating modes by including a lossy frequency selective surface (FSS). The electromagnetic material properties of individual layers disposed between the conductive plates of the waveguide may be engineered to extend the suppression band of the fundamental TE mode up to the cutoff frequency of the second TE mode. Examples of mode suppression structures are presented and analyzed by transverse resonance models. Applications include, for example, cavity mode suppression in microwave and millimeterwave assemblies at the board, package, and chip level.
摘要翻译： 平行板波导结构可以被配置为通过包括有损频率选择表面（FSS）来抑制杂散传播模式。 布置在波导的导电板之间的各层的电磁材料性质可以被设计成将基本TE模式的抑制带扩展到第二TE模式的截止频率。 通过横向共振模型呈现和分析模式抑制结构的示例。 应用包括例如在微波和毫米波组件中的板模，封装和芯片级的腔模抑制。
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34.发明申请公开(公告)号：US20100180437A1
公开(公告)日：2010-07-22
申请号：US12603071
申请日：2009-10-21
IPC分类号： H01R43/00
CPC分类号： H01P1/20 , H01P1/2005 , H05K1/0218 , H05K1/0231 , H05K1/0233 , H05K1/0236 , H05K1/0239 , H05K1/162 , H05K1/165 , H05K1/181 , H05K2201/093 , H05K2201/09318 , H05K2201/09609 , H05K2201/09663 , H05K2201/09672 , H05K2201/0969 , H05K2201/09718 , Y10T29/49018 , Y10T29/49117 , Y10T29/4913 , Y10T29/49155
摘要： A hybrid electromagnetic bandgap (EBG) structure for broadband suppression of noise on printed wiring boards includes an array of coplanar patches interconnected into a grid by series inductances, and a corresponding array of shunt LC networks connecting the coplanar patches to a second conductive plane. This combination of series inductances and shunt resonant vias lowers the cutoff frequency for the fundamental stopband. The series inductances and shunt capacitances may be implemented using surface mount component technology, or printed traces. Patches may also be interconnected by coplanar coupled transmission lines. The even and odd mode impedances of the coupled lines may be increased by forming slots in the second conductive plane disposed opposite to the transmission line, lowering the cutoff frequency and increasing the bandwidth of the fundamental stopband. Coplanar EBG structures may be integrated into power distribution networks of printed wiring boards for broadband suppression of electromagnetic noise.
摘要翻译： 用于宽带抑制印刷电路板上的噪声的混合电磁带隙（EBG）结构包括通过串联电感互连到电网中的共面贴片阵列，以及将共面贴片连接到第二导电平面的相应阵列的分流LC网络。 串联电感和并联谐振通孔的组合降低了基波阻带的截止频率。 串联电感和分流电容可以使用表面贴装元件技术或印刷迹线实现。 补片也可以通过共面耦合传输线相互连接。 可以通过在与传输线相对布置的第二导电平面中形成槽，降低截止频率并增加基带阻带的带宽来增加耦合线的偶模和奇模阻抗。 共面EBG结构可以集成到用于宽带抑制电磁噪声的印刷线路板的配电网络中。
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35.发明授权公开(公告)号：US07626216B2
公开(公告)日：2009-12-01
申请号：US11583212
申请日：2006-10-18
IPC分类号： H01L31/072 , H01L31/109 , H01L31/0328 , H01L31/0336
CPC分类号： H01P1/20 , H01P1/2005 , H05K1/0218 , H05K1/0231 , H05K1/0233 , H05K1/0236 , H05K1/0239 , H05K1/162 , H05K1/165 , H05K1/181 , H05K2201/093 , H05K2201/09318 , H05K2201/09609 , H05K2201/09663 , H05K2201/09672 , H05K2201/0969 , H05K2201/09718 , Y10T29/49018 , Y10T29/49117 , Y10T29/4913 , Y10T29/49155
摘要： A hybrid electromagnetic bandgap (EBG) structure for broadband suppression of noise on printed wiring boards includes an array of coplanar patches interconnected into a grid by series inductances, and a corresponding array of shunt LC networks connecting the coplanar patches to a second conductive plane. This combination of series inductances and shunt resonant vias lowers the cutoff frequency for the fundamental stopband. The series inductances and shunt capacitances may be implemented using surface mount component technology, or printed traces. Patches may also be interconnected by coplanar coupled transmission lines. The even and odd mode impedances of the coupled lines may be increased by forming slots in the second conductive plane disposed opposite to the transmission line, lowering the cutoff frequency and increasing the bandwidth of the fundamental stopband. Coplanar EBG structures may be integrated into power distribution networks of printed wiring boards for broadband suppression of electromagnetic noise.
摘要翻译： 用于宽带抑制印刷电路板上的噪声的混合电磁带隙（EBG）结构包括通过串联电感互连到电网中的共面贴片阵列，以及将共面贴片连接到第二导电平面的相应阵列的分流LC网络。 串联电感和并联谐振通孔的组合降低了基波阻带的截止频率。 串联电感和分流电容可以使用表面贴装元件技术或印刷迹线实现。 补片也可以通过共面耦合传输线相互连接。 可以通过在与传输线相对布置的第二导电平面中形成槽，降低截止频率并增加基带阻带的带宽来增加耦合线的偶模和奇模阻抗。 共面EBG结构可以集成到用于宽带抑制电磁噪声的印刷线路板的配电网络中。
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公开(公告)号：US07449982B2
公开(公告)日：2008-11-11
申请号：US11638852
申请日：2006-12-14
IPC分类号： H01P7/00
CPC分类号： H01P1/20 , H01P1/2005 , H05K1/0216 , H05K1/0236 , H05K1/0239 , H05K1/115 , H05K1/162 , H05K2201/09609 , H05K2201/09672
摘要： Systems and methods are taught for blocking the propagation of electromagnetic waves in parallel-plate waveguide (PPW) structures. Periodic arrays of resonant vias are used to create broadband high frequency stop bands in the PPW, while permitting DC and low frequency waves to propagate. Some embodiments of resonant via arrays are mechanically balanced, which promotes improved manufacturability. Important applications include electromagnetic noise reduction in layered electronic devices such as circuit boards, ceramic modules, and semiconductor chips.
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公开(公告)号：US06867746B2
公开(公告)日：2005-03-15
申请号：US10453474
申请日：2003-06-03
CPC分类号： H01Q23/00 , H01Q1/243 , H01Q1/38 , H01Q1/52 , H01Q1/526 , H01Q9/0407 , H01Q15/006 , H04B1/3838 , H04B15/02
摘要： A combined antenna and electromagnetic shield include a dielectric body mountable to a printed circuit board (PCB), antenna metallization disposed on a first side of the dielectric body and shield metallization disposed on a second side of the dielectric body. The shield metallization serves both as a ground plane for the antenna metallization and as an electromagnetic interference shield for circuit and components on the PCB below. Physical parameters of the component, such as thickness and composition, can be designed to tailor the performance of the antenna formed by the device. Antenna height can be defined by an injection mold, which dramatically reduces variability in the performance of production antennas.
摘要翻译： 组合的天线和电磁屏蔽包括可安装到印刷电路板（PCB）的电介质体，设置在电介质体的第一侧上的天线金属化，以及设置在介电体的第二侧上的屏蔽金属化。 屏蔽金属化既用作天线金属化的接地平面，也用作PCB上电路和部件的电磁干扰屏蔽层。 可以设计组件的物理参数，例如厚度和组成，以定制由该装置形成的天线的性能。 天线高度可以通过注射模具来定义，这大大降低了生产天线性能的变化。
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公开(公告)号：US09431709B2
公开(公告)日：2016-08-30
申请号：US13852482
申请日：2013-03-28
CPC分类号： H01Q9/0407 , H01Q9/045 , H01Q9/065 , H01Q9/285 , H01Q15/008 , H01Q19/10 , H01Q21/26 , Y10T29/49016 , Y10T29/49018
摘要： An antenna system is described which is comprised of an artificial magnetic conductor (AMC), an antenna element, and a feed network comprised of shielded feedlines whose outer conductor, or shield, is routed through the substrate of the AMC. The feedline outer conductor is connected to both the substantially continuous conductive surface and the array of capacitive patches forming the AMC. The shielded feedline suppresses the excitation of undesired TM modes within the AMC substrate, results in a stable return loss over a frequency range associated with the AMC's high surface impedance and surface wave bandgap.
摘要翻译： 描述了一种天线系统，其由人造磁导体（AMC），天线元件和馈线网络组成，该屏蔽馈线将外引线或屏蔽线穿过AMC的衬底。 馈线外导体连接到基本上连续的导电表面和形成AMC的电容性贴片的阵列。 屏蔽馈线抑制AMC衬底内不需要的TM模式的激发，导致与AMC高表面阻抗和表面波带隙相关的频率范围内的稳定回波损耗。
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公开(公告)号：US20120146881A1
公开(公告)日：2012-06-14
申请号：US13313409
申请日：2011-12-07
CPC分类号： H01P3/003 , H01P1/2005 , H01Q15/10 , H01Q25/008 , H05K1/0236 , Y10T29/49016
摘要： Electromagnetic slow wave structures (SWS) comprised of arrays of conductive obstacles are formed inside conductive parallel-plate waveguides These SWS may be formed using, for example, MEMS manufacturing processes at the wafer level on substrates including ceramic and silicon. An effective relative permittivity in the range of 15 to 40 may be obtained at millimeterwave frequencies. The SWS can be made absorptive by incorporating resistive losses in a plate of the PPW. Applications of these slow wave structures include delay lines and bootlace lens beamformers for microwave and millimeterwave antenna systems.
摘要翻译： 在导电平行板波导内部形成由导电障碍物阵列组成的电磁慢波结构（SWS）。这些SWS可以使用例如在包括陶瓷和硅的衬底上的晶片级的MEMS制造工艺来形成。 可以在毫米波频率下获得15至40范围内的有效相对介电常数。 通过在PPW的板中并入电阻损耗可以使SWS吸收。 这些慢波结构的应用包括用于微波和毫米波天线系统的延迟线和引导透镜波束形成器。
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40.发明授权Circuit and method for suppression of electromagnetic coupling and switching noise in multilayer printed circuit boards 有权用于抑制多层印刷电路板中的电磁耦合和开关噪声的电路和方法公开(公告)号：US07889134B2
公开(公告)日：2011-02-15
申请号：US11698401
申请日：2007-01-26
IPC分类号： H01Q1/38
CPC分类号： H01P1/2005 , H01P1/16 , H05K1/162 , H05K2201/093 , H05K2201/09309 , H05K2201/09663
摘要： Apparatus for suppressing noise and electromagnetic coupling in the printed circuit board of an electronic device includes an upper conductive plate and an array of conductive coplanar patches positioned a distance t2 from the upper conductive plate. The distance t2 is chosen to optimize capacitance between the conductive coplanar patches and the upper conductive plate for suppression of noise or electromagnetic coupling. The apparatus further includes a lower conductive plate a distance t1 from the array of conductive coplanar patches and conductive rods extending from respective patches to the lower conductive plate.
摘要翻译： 用于抑制电子设备的印刷电路板中的噪声和电磁耦合的设备包括上导电板和位于与上导电板的距离t2的导电共面片的阵列。 选择距离t2以优化导电共面贴片和上导电板之间的电容，以抑制噪声或电磁耦合。 该装置还包括一个与导电共面贴片阵列相距一定距离t1的下导电板，以及从相应贴片延伸到下导电板的导电棒。
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