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    • 22. 发明授权
    • Dual band sleeve antenna
    • 双带套筒天线
    • US06963313B2
    • 2005-11-08
    • US10707490
    • 2003-12-17
    • Xin Du
    • Xin Du
    • H01Q1/22H01Q1/24H01Q5/00H01Q9/04H01Q9/32
    • H01Q1/2258H01Q1/22H01Q1/241H01Q9/04H01Q9/32
    • A cost efficient multi-band antenna, for use with non-harmonically related frequency bands, for example dual Wi-Fi frequency bands. An antenna element extends away from a ground plane. A sleeve positioned coaxial about the antenna element is spaced apart from the antenna element and the ground plane. Dimensions, spacing and dielectric constants of the antenna element, sleeve and any dielectric spacers are selected to tune the antenna to the desired frequency bands. Further, the ground plane may be the radiating element of, for example a GPS module or SDAR antenna to create a triple frequency band antenna assembly.
    • 用于非谐波相关频带的成本效益的多频带天线,例如双Wi-Fi频带。 天线元件远离接地平面延伸。 与天线元件同轴设置的套筒与天线元件和接地平面间隔开。 选择天线元件,套筒和任何介电间隔物的尺寸,间距和介电常数,以将天线调谐到期望的频带。 此外,接地平面可以是例如GPS模块或SDAR天线的辐射元件,以产生三频带天线组件。
    • 26. 发明申请
    • MULTI-BAND ANTENNA
    • 多条天线
    • US20090256778A1
    • 2009-10-15
    • US12187032
    • 2008-08-06
    • Xin Du
    • Xin Du
    • H01Q21/00
    • H01Q19/005H01Q1/38H01Q5/385H01Q5/392H01Q19/10H01Q19/32H01Q21/24
    • A multi-band antenna is provided that operates in non-harmonically related frequency bands. The antenna includes a primary antenna element for a first frequency band of the non-harmonically related bands, said primary antenna element extending perpendicularly from a ground plane, the primary antenna element electrically isolated from the ground plane, a plurality of secondary elements extending from the ground plane parallel to the primary antenna element and arranged in a circle around the primary antenna element, each of said plurality of secondary elements electrically isolated from the primary antenna element and ground plane and a plurality of antenna elements for a second frequency band of a higher relative frequency than the first frequency band, the plurality of high frequency antenna elements extending parallel to the primary and secondary antenna elements and disposed in a circle around the secondary antenna elements.
    • 提供在非谐波相关频带中操作的多频带天线。 天线包括用于非谐波相关带的第一频带的主天线元件,所述主天线元件从接地平面垂直延伸,所述主天线元件与接地平面电隔离,多个辅助元件从 接地平面平行于主天线元件并围绕主天线元件围绕圆周布置,所述多个次要元件中的每一个与主天线元件和接地平面电隔离,并且多个天线元件用于第二频带的较高 所述多个高频天线元件平行于所述主天线元件和所述次天线元件延伸并且围绕所述次天线元件设置成圆形。
    • 27. 发明申请
    • WIRELESS INTELLIGENT PERSONAL SERVER
    • 无线智能个人服务器
    • US20070055762A1
    • 2007-03-08
    • US11553048
    • 2006-10-26
    • Edward BACHNERJohn MAJORXin DU
    • Edward BACHNERJohn MAJORXin DU
    • G06F15/173
    • H04L67/16H04L29/06H04L67/04H04L67/26H04L67/2852H04L67/2871H04L69/329
    • A wireless intelligent personal server includes a radio frequency (RF) receiver, a memory for storing electronic files, a set of embedded machine language instructions, a central processing unit (CPU), a first interface for a display device, such as a personal digital assistant (PDA), and a second interface for a wireless telephone. The RF receiver receives downstream data transmitted over a downstream wireless communications channel. The CPU executes the machine language instructions to process the downstream data and, thereby, either update an existing target electronic file stored in the memory, so that the target electronic file reflects changes made to a source electronic file, or create a new electronic file in the memory. A display device may be brought into communication with the wireless intelligent personal server, via the first interface, to access the electronic files stored in the memory. The wireless intelligent personal server may also transmit an upstream signal over an upstream wireless communication channel, such as by using a wireless telephone, in communication via the second interface. The upstream signal may acknowledge receipt of the downstream data, or it may include upstream data reflecting changes to the electronic files stored in the memory made by the display device.
    • 无线智能个人服务器包括射频(RF)接收器,用于存储电子文件的存储器,一组嵌入式机器语言指令,中央处理单元(CPU),用于显示设备的第一接口,诸如个人数字 助理(PDA)和无线电话的第二接口。 RF接收机接收通过下行无线通信信道发送的下行数据。 CPU执行机器语言指令以处理下游数据,从而更新存储在存储器中的现有目标电子文件,使得目标电子文件反映对源电子文件的改变,或者创建新的电子文件 记忆。 显示设备可以经由第一接口与无线智能个人服务器通信,以访问存储在存储器中的电子文件。 无线智能个人服务器还可以经由诸如通过使用无线电话的上游无线通信信道经由第二接口进行通信来发送上行信号。 上游信号可以确认下游数据的接收,或者其可以包括反映存储在由显示设备制造的存储器中的电子文件的改变的上游数据。
    • 28. 发明申请
    • Dual Band Sleeve Antenna
    • 双带袖天线
    • US20050134516A1
    • 2005-06-23
    • US10707490
    • 2003-12-17
    • Xin Du
    • Xin Du
    • H01Q1/22H01Q1/24H01Q5/00H01Q9/04H01Q9/32
    • H01Q1/2258H01Q1/22H01Q1/241H01Q9/04H01Q9/32
    • A cost efficient multi-band antenna, for use with non-harmonically related frequency bands, for example dual Wi-Fi frequency bands. An antenna element extends away from a ground plane. A sleeve positioned coaxial about the antenna element is spaced apart from the antenna element and the ground plane. Dimensions, spacing and dielectric constants of the antenna element, sleeve and any dielectric spacers are selected to tune the antenna to the desired frequency bands. Further, the ground plane may be the radiating element of, for example a GPS module or SDAR antenna to create a triple frequency band antenna assembly.
    • 用于非谐波相关频带的成本效益的多频带天线,例如双Wi-Fi频带。 天线元件远离接地平面延伸。 与天线元件同轴设置的套筒与天线元件和接地平面间隔开。 选择天线元件,套筒和任何介电间隔物的尺寸,间距和介电常数,以将天线调谐到期望的频带。 此外,接地平面可以是例如GPS模块或SDAR天线的辐射元件,以产生三频带天线组件。
    • 30. 发明授权
    • Window mounted mobile antenna system using annular ring aperture coupling
    • 使用环形孔径耦合器的窗户安装的移动天线系统
    • US5898408A
    • 1999-04-27
    • US740204
    • 1996-10-24
    • Xin Du
    • Xin Du
    • H01Q1/12H01Q1/50H01Q1/32
    • H01Q1/125H01Q1/1285H01Q1/50
    • A low cost window-mounted antenna system for mobile communication systems operating at frequencies in and above the 1.5 GHz band includes an annular ring aperture coupler fabricated on printed circuit boards on each side of the window, with a microstrip line etched on each of the printed circuit boards. A collinear array-type whip antenna with a 1/2-wavelength lower section is used with the coupler. A coplanar waveguide trace is printed on the outside coupling unit to form an impedance matching network for the active element. The RF signal is thus electro-magnetically coupled through the window.
    • 用于在1.5GHz频带内和以上频率工作的移动通信系统的低成本窗户安装天线系统包括在窗口的每一侧的印刷电路板上制造的环形环孔耦合器,其中每个印刷线上刻有微带线 电路板。 与耦合器一起使用具有+ E,fra 1/2 + EE-波长下限的共线阵列型鞭状天线。 在外部耦合单元上印刷共面波导迹线,以形成有源元件的阻抗匹配网络。 因此,RF信号通过窗口电磁耦合。