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    • 1. 发明授权
    • Arrangement of MEMS devices having series coupled capacitors
    • 具有串联耦合电容器的MEMS器件的布置
    • US08194386B2
    • 2012-06-05
    • US12158668
    • 2006-12-18
    • Peter G. SteenekenKevin R. BoyleAntonius J. M. De GraauwTheodoor G. S. M. RijksJozef T. M. Van Beek
    • Peter G. SteenekenKevin R. BoyleAntonius J. M. De GraauwTheodoor G. S. M. RijksJozef T. M. Van Beek
    • H01G5/00
    • H01G5/38
    • A tuneable capacitor arrangement for RF use has two series coupled MEMS variable capacitors (C1,C2;C4,C5,C6,C7), varied according to a control signal. The series coupling enables the capacitor to withstand a higher voltage since this is shared by the individual capacitors in a series coupled arrangement. An increase in size of electrodes for each capacitor is compensated by a reduction in size of the springs supporting movable electrodes. These springs can have a larger stiffness value since the capacitance is larger. This means shorter springs, which can also result in a reduction in problems of stiction, resistance, and slow switching. The capacitances have a fixed and a movable electrode, with the RF signal coupled to the fixed electrode to avoid the springs needing to carry an RF signal. This can reduce the problems of inductance and resistance in the springs.
    • 用于RF使用的可调谐电容器布置具有根据控制信号而变化的两个串联耦合的MEMS可变电容器(C1,C2; C4,C5,C6,C7)。 串联耦合使得电容器能够承受更高的电压,因为这是由串联耦合布置的各个电容器共享的。 通过减少支撑可动电极的弹簧的尺寸来补偿每个电容器的电极尺寸的增加。 这些弹簧可以具有较大的刚度值,因为电容较大。 这意味着较短的弹簧,这也可能导致静电,电阻和慢速切换的问题的减少。 电容具有固定和可移动电极,RF信号耦合到固定电极以避免弹簧需要携带RF信号。 这可以减少弹簧中电感和电阻的问题。
    • 2. 发明授权
    • High frequency module
    • 高频模块
    • US07580727B2
    • 2009-08-25
    • US10523429
    • 2003-07-22
    • Kevin R. BoyleAntonius J. M. De GraauwRobert F. Milsom
    • Kevin R. BoyleAntonius J. M. De GraauwRobert F. Milsom
    • H04M1/00
    • H04B1/005H04B1/0057H04B1/40H04B1/406H04B1/48
    • A multi-mode radio module (22) comprises a terminal (11) for connection to an antenna (10). A transmitting branch (DCS/PCS) and a branching circuit are coupled to the terminal (11). The branching circuit comprises at least a first and a second branch for receiving signals in first and second frequency bands (DCS, PCS), respectively. Each of the first and second branches comprise, respectively, a phase shifting circuit (PS1, PS2), a BAW or SAW band pass filter (RXF2, RXF3) coupled to the phase shifting circuit, the bandwidth of the filter being selected to pass a wanted signal in one of the first and second frequency bands but reject an unwanted signal in the other of the second and first frequency bands, and a low noise amplifier (LNA2, LNA3) coupled to an output of the band pass filter. The response of each of the band pass filters (RXF2, RXF3) is phase shifted to present an open circuit at the wanted frequency in the other branch. Each of the phase shifting circuits (PS1, PS2) is impedance transforming so that higher impedance filters can be used.
    • 多模式无线电模块(22)包括用于连接到天线(10)的终端(11)。 发送分支(DCS / PCS)和分支电路耦合到终端(11)。 分支电路至少包括用于分别在第一和第二频带(DCS,PCS)中接收信号的第一和第二分支。 第一和第二分支中的每一个分别包括耦合到移相电路的移相电路(PS1,PS2),BAW或SAW带通滤波器(RXF2,RXF3),滤波器的带宽被选择为通过 在第一和第二频带中的一个频带中的有用信号,但是抑制第二和第一频带中的另一个频带中的不需要的信号,以及耦合到带通滤波器的输出的低噪声放大器(LNA2,LNA3)。 每个带通滤波器(RXF2,RXF3)的响应被相移以在另一分支中以所需频率呈现开路。 每个移相电路(PS1,PS2)是阻抗变换,因此可以使用更高阻抗的滤波器。
    • 4. 发明授权
    • Communication system and method for transmitting and receiving signals
    • 用于发送和接收信号的通信系统和方法
    • US09054774B2
    • 2015-06-09
    • US13254398
    • 2010-03-01
    • Kevin R. Boyle
    • Kevin R. Boyle
    • H04B1/56H04B7/00H04L5/14H04B1/18H04B1/52
    • H04B1/18H04B1/52
    • A communication system transmits signals having frequencies that lie within a transmission band and receives signals having frequencies that lie within a reception band. The system includes a duplexer and an antenna. The duplexer includes a transmission branch and a reception branch. The transmission branch includes a transmission filter, a transmission phase shifting network and a transmission matching network. The reception branch includes a reception filter, a reception phase shifting network and a reception matching network. The transmission matching network and the reception matching network have predominately constant phase shifts over frequencies within the reception band and within the transmission band, respectively. The antenna is coupled to the transmission matching network and to the reception matching network, and shows a predominantly reactance-only impedance variation over frequencies in the transmission band and over frequencies in the reception band.
    • 通信系统发送具有位于传输频带内的频率的信号,并接收具有位于接收频带内的频率的信号。 该系统包括双工器和天线。 双工器包括传输分支和接收分支。 传输分支包括传输滤波器,传输相移网络和传输匹配网络。 接收分支包括接收滤波器,接收相移网络和接收匹配网络。 传输匹配网络和接收匹配网络分别在接收频带内和传输频带内的频率上具有主要恒定的相移。 天线耦合到传输匹配网络和接收匹配网络,并且在接收频带中的传输频带和频率上的频率上显示出主要是电抗阻抗的变化。
    • 5. 发明授权
    • Portable wireless device
    • 便携式无线设备
    • US08330667B2
    • 2012-12-11
    • US12812363
    • 2009-01-13
    • Kevin R. Boyle
    • Kevin R. Boyle
    • H01Q9/04
    • H04B1/0458H03F1/02H03F3/24H03H7/40H04B2001/045
    • A method of offsetting a mismatch due to user interaction when handling a portable wireless terminal in which antenna matching is changed from inductive matching to capacitive matching in response to a reactance change exceeding a threshold level and vice versa when an opposite change is detected. An antenna interface module (44) is coupled between a RF output or input stage (25 or 33) and an antenna (48 or 50). The antenna interface module includes first and second switches (SW1/1, SW1/2 or SW2/1, SW2/2), a first matching circuit including an inductive reactance (68 or 96) coupled between the power amplifier and the first switch and a second matching circuit including a capacitive reactance (68 or 92) is coupled between the RF output or input stage and the second switch (SW1/1 or SW2/1). A reactance threshold detector (54 or 56) determines if the reactance change traverses a predetermined threshold value and causes the first and second switches to be actuated so that the matching changes from inductive to capacitive or vice versa.
    • 当处理便携式无线终端时,抵消由于用户交互引起的不匹配的方法,其中天线匹配响应于超过阈值电平的电抗变化而从电感匹配变为电容匹配,反之亦然。 天线接口模块(44)耦合在RF输出或输入级(25或33)与天线(48或50)之间。 天线接口模块包括第一和第二开关(SW1 / 1,SW1 / 2或SW2 / 1,SW2 / 2),第一匹配电路包括耦合在功率放大器与第一开关之间的感抗(68或96) 包括电容电抗(68或92)的第二匹配电路耦合在RF输出或输入级与第二开关(SW1 / 1或SW2 / 1)之间。 电抗阈值检测器(54或56)确定电抗变化是否穿过预定阈值,并且使得第一和第二开关被致动,使得匹配从电感到电容改变,反之亦然。
    • 7. 发明授权
    • Wireless terminal
    • 无线终端
    • US06909911B2
    • 2005-06-21
    • US10218215
    • 2002-08-13
    • Kevin R. BoylePeter J. Massey
    • Kevin R. BoylePeter J. Massey
    • H01Q13/08H01Q1/24H04M1/02H05K1/02H04M1/00H04B1/10H04Q1/52
    • H01Q1/245H01Q1/243H05K1/0218H05K1/0231
    • A capacitively back-coupled wireless terminal (10) comprises a PCB (22) having a ground conductor (24) on one surface. A back coupling capacitor (C) is carried by the ground conductor. An elongate slot (30) is provided in the ground conductor to widen the bandwidth. An electromagnetic shield (32) is provided on the side of the PCB (22) which in use is facing a lossy dielectric in order to reduce the SAR. The shield is disposed adjacent to, but spaced from, the slot (30) in the ground conductor and the back coupling capacitor. For narrowband operation the slot may be omitted and/or the spacing between the PCB (22) and the shield (32) may be reduced.
    • 电容性背耦合无线终端(10)包括在一个表面上具有接地导体(24)的PCB(22)。 背耦合电容器(C)由接地导体承载。 在接地导体中设置有细长槽(30)以加宽带宽。 电路屏蔽(32)设置在PCB(22)的侧面,PCB(22)在使用中面向有损电介质以减少SAR。 屏蔽件设置成与接地导体和背耦合电容器中的狭槽(30)相邻但间隔开。 对于窄带操作,可以省略槽,和/或可以减小PCB(22)和屏蔽(32)之间的间隔。
    • 10. 发明申请
    • DISTRIBUTION DIPLEXER
    • 分销商
    • US20100091690A1
    • 2010-04-15
    • US11720836
    • 2005-11-30
    • Kevin R. Boyle
    • Kevin R. Boyle
    • H04L5/00
    • H04B1/406H04B1/0057
    • A multi-band RF circuit has receive paths for two or more bands, and transmit paths, a bidirectional one-in multi-le-out transmission line junction (100) for combining the paths for coupling to an antenna. A switch combines transmit and receive paths, and a receive path circuit (110, 150, 160, 230, 240) is arranged to pass signals of its band, and appear open circuit to signals of the other bands. This means the combiner no longer needs to cut off the receive paths when they are not used. This can reduce components and thus reduce losses in the transmit paths for longer battery life or greater transmit range. A band filter (SAW) and a complementary circuit can achieve the open circuit. The bands can include GSM and GPS bands, the circuits can be used in tri band mobile handsets and handsets for future 3G bands, or base stations.
    • 多频带RF电路具有用于两个或更多个频带和发射路径的接收路径,一个用于组合用于耦合到天线的路径的双向一输入多输出传输线路结(100)。 开关组合发送和接收路径,并且接收路径电路(110,150,160,230,240)被布置成传送其频带的信号,并且对其他频带的信号显现开路。 这意味着组合器不再需要在不使用时切断接收路径。 这可以减少组件,从而减少发射路径中的损耗,延长电池寿命或更大的发射范围。 带式滤波器(SAW)和互补电路可以实现开路。 频带可以包括GSM和GPS频带,这些电路可以用于未来3G频段或基站的三频手机和手机。