ADAPTIVE INTERFERENCE FILTERING
    1.
    发明申请
    ADAPTIVE INTERFERENCE FILTERING 审中-公开
    自适应干扰滤波

    公开(公告)号:WO2005104390A1

    公开(公告)日:2005-11-03

    申请号:PCT/US2005/007157

    申请日:2005-03-02

    CPC classification number: H04B1/1036 H04B1/525 H04B1/7097

    Abstract: Systems and techniques for adaptive interference filtering in a communications device are disclosed. The communications device may include a transmitter, a receiver, a duplexer coupled to the transmitter and the receiver, and an adaptive filter disposed between the duplexer and the receiver. A processor may be configured to monitor cross modulation in the receiver between transmitter leakage through the duplexer and a jammer, and adapt the filter to vary its transmit signal rejection as a function of the cross modulation.

    Abstract translation: 公开了一种用于通信设备中的自适应干扰滤波的系统和技术。 通信设备可以包括发射机,接收机,耦合到发射机和接收机的双工器,以及布置在双工器和接收机之间的自适应滤波器。 处理器可以被配置为在发射机通过双工器和干扰器之间的泄漏中监测接收机中的交叉调制,并且调整滤波器以改变其作为交叉调制的函数的发射信号抑制。

    WIDEBAND VCO RESONANT CIRCUIT METHOD AND APPARATUS
    2.
    发明申请
    WIDEBAND VCO RESONANT CIRCUIT METHOD AND APPARATUS 审中-公开
    宽带VCO谐振电路方法和装置

    公开(公告)号:WO2004010571A1

    公开(公告)日:2004-01-29

    申请号:PCT/US2003/022596

    申请日:2003-07-18

    Abstract: A wideband Voltage Controlled Oscillator (VCO) uses a resonant circuit tunable over a wide range of resonant frequencies. The resonant circuit includes voltage variable elements such that the resonant frequency, and thus the frequency of oscillation, may be electronically tuned. The voltage variable elements are arranged such that multiple control voltages determine the resonant frequency. A first control voltage is applied to a first set of tuning elements and operates as a coarse control of the resonant frequency. A second control voltage is applied to a second set of tuning elements and operates as a fine control of the resonant frequency. Using multiple control voltages on multiple elements allows for a wideband VCO while maintaining a low VCO gain.

    Abstract translation: 宽带压控振荡器(VCO)使用可在宽范围的谐振频率下调谐的谐振电路。 谐振电路包括电压可​​变元件,使得谐振频率以及因此的振荡频率可以被电子调谐。 电压可变元件被布置成使得多个控制电压确定谐振频率。 第一控制电压被施加到第一组调谐元件,并且作为谐振频率的粗略控制来操作。 第二控制电压被施加到第二组调谐元件并且作为谐振频率的精细控制而工作。 在多个元件上使用多个控制电压允许宽带VCO同时保持低VCO增益。

    TUNABLE SURFACE ACOUSTIC WAVE RESONATORS
    3.
    发明申请
    TUNABLE SURFACE ACOUSTIC WAVE RESONATORS 审中-公开
    TUNABLE表面声波谐振器

    公开(公告)号:WO2006032038A1

    公开(公告)日:2006-03-23

    申请号:PCT/US2005/033259

    申请日:2005-09-15

    CPC classification number: H03H9/76 H03H7/12 H03H9/25 H03H9/6409 H03H9/725

    Abstract: A tunable SAW resonator circuit (400, 500) is disclosed. The tunable SAW resonator circuit includes a SAW resonator (404a, 404b, 504) having a quality factor and a resistor (412a, 414a, 510, 512) coupled to the SAW resonator to reduce the quality factor Q and a tuning component (402a, 502) coupled to the SAW resonator to tune the SAW resonator. A method to tune the SAW resonator is also disclosed. The SAW resonator may be tuned by applying a control signal to the tuning component (402a, 502).

    Abstract translation: 公开了一种可调谐SAW谐振电路(400,500)。 可调谐SAW谐振器电路包括具有质量因子的SAW谐振器(404a,404b,504)和耦合到SAW谐振器的电阻器(412a,414a,510,512),以降低质量因子Q,并且调谐组件(402a, 502),其耦合到SAW谐振器以调谐SAW谐振器。 还公开了一种调谐SAW谐振器的方法。 可通过向调谐组件(402a,502)施加控制信号来调谐SAW谐振器。

    BALANCED ANTENNA SYSTEM FOR PORTABLE COMPUTERS
    4.
    发明申请
    BALANCED ANTENNA SYSTEM FOR PORTABLE COMPUTERS 审中-公开
    平衡计算机平衡天线系统

    公开(公告)号:WO2001057950A1

    公开(公告)日:2001-08-09

    申请号:PCT/US2001003990

    申请日:2001-02-07

    CPC classification number: H01Q23/00 H01Q9/16

    Abstract: An efficient radio communications device. The device includes a computer and a balanced antenna system that delivers electromagnetic energy to and from the computer via a radio section. The radio section is connected to the computer and the antenna feed and interfaces the antenna system to the computer to facilitate electrical communication between the computer and the antenna system. The balanced antenna system includes an antenna feed for extending radiating elements of the antenna system from the computer to reduce electrical coupling and interference between the computer and electromagnetic energy radiated or received by the antenna system. The antenna system includes a ballun that interfaces the antenna feed to the radio section. In an alternative embodiment, the balun interfaces the antenna radiating elements to the antenna feed. The balun is a lumped or discrete element balun or a bazooka balun. The antenna feed includes a coaxial transmission line. The balanced antenna system includes a dipole antenna. The dipole antenna has approximately symmetrical radiating elements oriented in opposing directions. The radio section includes a transceiver and a duplexer that is connected between the antenna system and the transceiver and facilitates the sharing of antenna system resources between transmit and receive functions.

    Abstract translation: 一种高效的无线电通信设备。 该装置包括计算机和平衡天线系统,其通过无线电部分向计算机提供电磁能量和从计算机传送电磁能量。 无线电部分连接到计算机,天线馈送并将天线系统连接到计算机,以便于计算机和天线系统之间的电气通信。 平衡天线系统包括用于从计算机延伸天线系统的辐射元件的天线馈电,以减少计算机与由天线系统辐射或接收的电磁能之间的电耦合和干扰。 天线系统包括将天线馈电连接到无线电部分的气球。 在替代实施例中,平衡 - 不平衡变换器将天线辐射元件接合到天线馈送。 平衡 - 不平衡变换器是集中或分立元件平衡 - 不平衡转换器或火箭筒平衡 - 不平衡转换器。 天线馈电包括同轴传输线。 平衡天线系统包括偶极天线。 偶极天线具有相对方向定向的大致对称的辐射元件。 无线电部分包括收发器和双工器,其连接在天线系统和收发器之间,并且有助于在发射和接收功能之间共享天线系统资源。

    METHOD AND APPARATUS FOR PROVIDING A DUAL PURPOSE CONNECTION FOR INTERFACE WITH AN ANTENNA OR CONNECTION INTERFACE
    5.
    发明公开
    METHOD AND APPARATUS FOR PROVIDING A DUAL PURPOSE CONNECTION FOR INTERFACE WITH AN ANTENNA OR CONNECTION INTERFACE 审中-公开
    方法和设备用于生产双适用BETWEEN歌曲作为ATENNE或连接器

    公开(公告)号:EP1040538A1

    公开(公告)日:2000-10-04

    申请号:EP98963908.3

    申请日:1998-12-14

    CPC classification number: H01R24/50 H01R2103/00 H01R2201/02 H01R2201/20

    Abstract: A connector interface (68) provides direct connection from a wireless communication device to a coaxial connector. The wireless communication device has a housing with an antenna connector. The antenna connector has a hollow pseudo-cylindrical center providing an opening through the housing. The connector interface has a custom connector (66) comprised of an outer conductive shell (72), a nonconductive spacer (76) and a ground probe (78). The outer conductive shell (72) is mounted on the printed circuit board (70). The nonconductive spacer (76) is disposed within the hollow pseudo-cylindrical center of the outer conductive shell (72). When the connector interface is connected to the wireless communication device, the outer conductive shell (72) contacts the antenna connector and the ground probe extends through the opening into the housing to connect electrically to a ground potential within the housing.

    ADAPTIVE INTERFERENCE FILTERING
    6.
    发明公开
    ADAPTIVE INTERFERENCE FILTERING 审中-公开
    自适应干扰器

    公开(公告)号:EP1730845A1

    公开(公告)日:2006-12-13

    申请号:EP05724661.3

    申请日:2005-03-02

    CPC classification number: H04B1/1036 H04B1/525 H04B1/7097

    Abstract: Systems and techniques for adaptive interference filtering in a communications device are disclosed. The communications device may include a transmitter, a receiver, a duplexer coupled to the transmitter and the receiver, and an adaptive filter disposed between the duplexer and the receiver. A processor may be configured to monitor cross modulation in the receiver between transmitter leakage through the duplexer and a jammer, and adapt the filter to vary its transmit signal rejection as a function of the cross modulation.

    SELECTIVELY COUPLED TWO-PIECE ANTENNA
    7.
    发明申请
    SELECTIVELY COUPLED TWO-PIECE ANTENNA 审中-公开
    选择性耦合两面天线

    公开(公告)号:WO2003019719A1

    公开(公告)日:2003-03-06

    申请号:PCT/US2002/027352

    申请日:2002-08-27

    CPC classification number: H01Q9/14 H01Q1/244

    Abstract: A selectively coupled two-piece antenna for use in a mobile phone having a casing (102) and radio frequency (RF) communications circuitry (112) includes a composite radiator (206) that is selectively extendable from and retractable into the casing and a communications interface that is connected to the RF communications circuitry. The composite radiator has first and second radiating elements (208, 212), and a connecting element (210). When the composite radiator is extended, the connecting element connects the first and second radiating elements. In this position, the communications interface connects the RF communications circuitry to the first and second radiating elements. Thus, the RF communications circuitry transmits and/or receives RF signals through both the first and second radiating elements as a top loaded antenna. However, when the composite radiator is retracted, the connecting element electrically isolates the first and second radiating elements. In this position, the composite radiator electrically connects with the communications interface so that the first radiating element is electrically connected to the RF communications circuitry.

    Abstract translation: 一种用于具有壳体(102)和射频(RF)通信电路(112)的移动电话中的选择性耦合双片天线,包括可选择地从壳体延伸并可缩回到壳体中的复合辐射器(206) 接口连接到RF通信电路。 复合散热器具有第一和第二辐射元件(208,212)和连接元件(210)。 当复合散热器延伸时,连接元件连接第一和第二辐射元件。 在该位置,通信接口将RF通信电路连接到第一和第二辐射元件。 因此,RF通信电路通过第一和第二辐射元件作为顶部加载天线发射和/或接收RF信号。 然而,当复合散热器缩回时,连接元件电隔离第一和第二辐射元件。 在该位置,复合散热器与通信接口电连接,使得第一辐射元件电连接到RF通信电路。

    DUAL-BAND ANTENNA SYSTEM
    8.
    发明申请
    DUAL-BAND ANTENNA SYSTEM 审中-公开
    双带天线系统

    公开(公告)号:WO1997010621A1

    公开(公告)日:1997-03-20

    申请号:PCT/US1996014615

    申请日:1996-09-11

    CPC classification number: H04B1/406 H01P1/213 H03H2007/386 H04B1/005 H04B1/18

    Abstract: A dual-band antenna system for use in a portable communications device is disclosed herein. The antenna system includes an antenna element (10) for radiating electromagnetic energy within low-band and high-band wavelength ranges. In a preferred embodiment, a low-band isolator network (20), coupled to the antenna element (10), provides signal isolation between high-band and low-band signal paths during high-band operation. Similarly, a high-band isolator network (18) provides signal isolation, during operation over the low-band range of wavelengths, between the high-band and low-band signal paths. During transmit and receive operation, low-band and high-band electromagnetic energy directed through the antenna (10) is passed by the low-band and high-band isolator networks, (20) and (18) respectively. Also included are low-band and high-band matching networks (28) and (36), respectively, which couple the low-band and high-band isolator networks (20) and (18), respectively, to low-band and high-band transceiver circuitry.

    Abstract translation: 本文公开了一种用于便携式通信设备的双频天线系统。 天线系统包括用于在低频带和高频带波长范围内辐射电磁能的天线元件(10)。 在优选实施例中,耦合到天线元件(10)的低频带隔离器网络(20)在高频带操作期间在高频带和低频带信号路径之间提供信号隔离。 类似地,高带隔离器网络(18)在高频带和低频带信号路径之间的低波段范围内的操作期间提供信号隔离。 在发射和接收操作期间,引导通过天线(10)的低频带和高频带电磁能分别由低频带和高频带隔离器网络(20)和(18)通过。 还包括分别将低频带和高频带隔离器网络(20)和(18)耦合到低频和高频的低频带和高频带匹配网络(28)和(36) 带收发器电路。

    DOUBLE HELIX ANTENNA SYSTEM
    9.
    发明申请
    DOUBLE HELIX ANTENNA SYSTEM 审中-公开
    双HELIX天线系统

    公开(公告)号:WO1997000542A1

    公开(公告)日:1997-01-03

    申请号:PCT/US1996010459

    申请日:1996-06-17

    CPC classification number: H01Q11/08 H01Q1/362

    Abstract: A double helix antenna (10) comprised of orthogonally-wound helix conductors. The double helix antenna (10) includes a first helix conductor (14) wound in a first direction about a vertical axis, V, of the double helix antenna (10). A second helix conductor (18) is wound in a second direction about the vertical axis, V. In a specific implementation, the first and second helix conductors (14 and 18) are of different lengths, respectively corresponding to first and second frequency bands. Additionally, the first and second helix conductors (14 and 18) are wound so as to be orthogonal at those horizontal planes within which the first and second helix conductors (14 and 18) intersect or are otherwise minimally separated in the horizontal dimension. This orthogonal winding relationship between the helix conductors substantially reduces mutual coupling, thus enabling operation of separate helical antennas in close physical proximity.

    Abstract translation: 由正交缠绕的螺旋导体构成的双螺旋天线(10)。 双螺旋天线(10)包括围绕双螺旋天线(10)的垂直轴线V沿第一方向缠绕的第一螺旋导体(14)。 第二螺旋导体(18)围绕垂直轴线V沿第二方向缠绕。在具体实现中,第一和第二螺旋导体(14和18)分别对应于第一和第二频带的长度不同。 此外,第一和第二螺旋导体(14和18)被缠绕成在第一和第二螺旋导体(14和18)相交的那些水平面处垂直,或者在水平尺寸上以其它方式最小化地分开。 螺旋导体之间的这种正交绕组关系基本上减少了相互耦合,从而能够在紧密物理接近的情况下操作单独的螺旋天线。

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