EMBEDDED MULTI-MODE ANTENNA ARCHITECTURES FOR WIRELESS DEVICES
    1.
    发明申请
    EMBEDDED MULTI-MODE ANTENNA ARCHITECTURES FOR WIRELESS DEVICES 审中-公开
    用于无线设备的嵌入式多模天线架构

    公开(公告)号:WO2008003581A2

    公开(公告)日:2008-01-10

    申请号:PCT/EP2007056051

    申请日:2007-06-19

    CPC classification number: H01Q9/40 H01Q1/2266 H01Q1/38 H01Q9/28 H01Q9/285

    Abstract: Low-profile, compact embedded multi-mode antenna designs are provided for use with computing devices, such as laptop computers, which enable ease of integration within computing devices with limited space, while providing suitable antenna characteristics (e.g., impedance matching and radiation efficiency) over an operating bandwidth of about.8 GHz to about 11 GHz.

    Abstract translation: 提供小型,紧凑型嵌入式多模式天线设计,用于与诸如膝上型计算机之类的计算设备一起使用,其允许在具有有限空间的计算设备中方便地集成,同时提供合适的天线特性(例如阻抗匹配和辐射效率) 在约8GHz至约11GHz的工作带宽上。

    METHOD AND DEVICE FOR AUTOMATIC MULTI-SPEED WIRELESS/ CABLE COMPUTER NETWORK

    公开(公告)号:JPH11187047A

    公开(公告)日:1999-07-09

    申请号:JP26950798

    申请日:1998-09-24

    Applicant: IBM

    Abstract: PROBLEM TO BE SOLVED: To obtain an automatic multi-speed wireless/cable computer network by establishing communications between a master computer and other equipment connected with an AC power network or radio equipment so as to control the other equipment through the master computer. SOLUTION: RF fields 15 are generated around a house by an AC power network 14 and radio, both of which exist inside/outside of in-house environment, by means of an RF network established by a network box 16. Once equipment enters the range of the field 15 by applying this field 15, it is automatically registered in the network and all of internal information concerning the equipment is sent to the master computer 12 to receive operation according to information. This computer 12 is connected to a telephone line through a modem 20 and the box 16 is connected to the telephone line from the house through an RJ-11 type connector.

    CHANNEL SELECTING METHOD
    4.
    发明专利

    公开(公告)号:JPH11285058A

    公开(公告)日:1999-10-15

    申请号:JP30509798

    申请日:1998-10-27

    Abstract: PROBLEM TO BE SOLVED: To improve the reliability of data transmission by scanning channels of radio communication, recording a channel having interference in an interval in a history table, determining the best channel having the least interference over the expected number of intervals, and updating it periodically. SOLUTION: A cordless or radio communication system 500 generates the history table having columns assigned to plural channels and rows assigned to intervals between a remote station 510 and a base station 508. The system 500 scans plural channels and a receive signal intensity display means which outputs a voltage proportional to interference determines a channel having interference in a given interval. The system 500 determines the best channel for communication having the least interference over the expected number of intervals in the history table wherein the decision is recorded and periodically updates it. Consequently, the system which is more robust and reliable can be obtained.

    APPARATUS AND METHODS FOR CONSTRUCTING ANTENNAS USING WIRE BONDS AS RADIATING ELEMENTS

    公开(公告)号:CA2575845C

    公开(公告)日:2013-02-19

    申请号:CA2575845

    申请日:2005-02-23

    Applicant: IBM

    Abstract: Antennas are provided which are constructed using one or more wires as radiating elements attached to a substrate or chip, wherein wire bonding methods can be used to attach and form loop profiles for the wires. The antennas can be integrally packaged with IC chips (e.g., IC transceivers, receivers, transmitters, etc.) to build integrated wireless or RF (radio frequency) communications systems. For example, an exemplary antenna device (20) comprises a substrate (21) having a dipole antenna comprising a first wire element (22) connected to and supported by metallic pads (23) and (24), and a second wire element (25) connected to and supported by metallic pads (26) and (27). The metallic pads (23) and (26) are contact pads to an integrated antenna feed network connected to an RF circuit, for example. The metallic pads (24) and (27) are termination pads for attaching and supporting the end (non-fed) portions of respective wire elements (22) and (25). Optional metallic shielding elements (28) and (29) are formed on the substrate/chip (21) under respective wire elements (22) and (25) to prevent electromagnetic fields from penetrating into the substrate (21) thereby reducing loss and improving the antenna efficiency.

    6.
    发明专利
    未知

    公开(公告)号:DE69834893D1

    公开(公告)日:2006-07-27

    申请号:DE69834893

    申请日:1998-11-25

    Applicant: IBM

    Abstract: A method and apparatus for implementing a wireless/wired computer network in an indoor environment with inherent reliability is disclosed. A master network box connected to an AC power network and a master computer generates an RF field around the computer, the home, and AC power network. The integration and implementation of additional devices to the established network is made through additional appliance boxes. One introduced into the generated RF field, or connected to the AC power network, the additional device is automatically and seamlessly registered and configured into the network without requiring any user intervention. The network is capable of multiple modulation schemes for providing robust wirred or wireless communication for various devices which have different power and data rates. The programming of the master computer enables the automated registration of additional devices, and can provide superior control over the devices connected to the network, either via the AC power network, or via RF wireless transmission through the multiple modulation schemes.

    Integrated multiband antennas for computing devices

    公开(公告)号:GB2430081A

    公开(公告)日:2007-03-14

    申请号:GB0617193

    申请日:2005-02-23

    Applicant: IBM

    Abstract: Multiband antennas are provided that can be embedded in computing devices such as portable laptop computers and cellular phones, for example, to provide efficient wireless communication in multiple frequency bands. Exemplary embodiments include monopole multiband antennas, dipole multiband antennas, and inverted-F antennas, having one or more coupled and/or branch radiating elements, for providing multiband operation in two or more frequency bands. For example, an exemplary multiband antenna (100) includes a ground element (101), a monopole radiator (102) connected to the ground element (101) and having a feed tab (103) extending therefrom, a coupled radiator (104) connected to the ground element (101) and a branch radiator (105) that is connected to the monopole radiator (102). The antenna elements can be formed from thin sheet metal, such as copper or brass. The antenna (100) can be fed using a coaxial cable, for example, wherein a center conductor is electrically connected to feed element (103) via a solder connection and wherein in the outer conductor (ground) of the coaxial cable is electrically connected to the ground element (101) via a solder connection.

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