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US20010040529A1 - Antenna for portable device - Google Patents

Antenna for portable device Download PDF

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Publication number
US20010040529A1
US20010040529A1 US09/853,785 US85378501A US2001040529A1 US 20010040529 A1 US20010040529 A1 US 20010040529A1 US 85378501 A US85378501 A US 85378501A US 2001040529 A1 US2001040529 A1 US 2001040529A1
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Prior art keywords
antenna
portable device
unit
hinge
display
Prior art date
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Granted
Application number
US09/853,785
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US6414643B2 (en
Inventor
Wei-Li Cheng
Chien-Hsing Fang
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Wistron Neweb Corp
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Individual
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Filing date
Publication date
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Assigned to ACER NEWEB CORP. reassignment ACER NEWEB CORP. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CHENG, WEI-LI, FANG, CHIEN-HSING
Publication of US20010040529A1 publication Critical patent/US20010040529A1/en
Application granted granted Critical
Publication of US6414643B2 publication Critical patent/US6414643B2/en
Assigned to WISTRON NEWEB CORPORATION reassignment WISTRON NEWEB CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: ACER NEWEB CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • H01Q1/2266—Supports; Mounting means by structural association with other equipment or articles used with computer equipment disposed inside the computer
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1615—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function
    • G06F1/1616—Constructional details or arrangements for portable computers with several enclosures having relative motions, each enclosure supporting at least one I/O or computing function with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1684—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675
    • G06F1/1698—Constructional details or arrangements related to integrated I/O peripherals not covered by groups G06F1/1635 - G06F1/1675 the I/O peripheral being a sending/receiving arrangement to establish a cordless communication link, e.g. radio or infrared link, integrated cellular phone
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H01Q1/084—Pivotable antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element

Definitions

  • the present invention relates an antenna for a portable device, and especially relates for an antenna which is received within a hinge of the portable device and is combined into the portable device, such as a notebook computer or a personal digital assistance.
  • the present invention provides a wireless communication of the portable device.
  • a local area network means that several computers are connected each other in a specified area. For instance, two or more computers have working stations installed thereon and are connected through cable or wireless communication. Therefore, computers in the LAN can share and transmit data.
  • FIG. 1 shows a circuit diagram of a wireless network card.
  • the circuit diagram comprises an antenna 10 , a RF unit 12 and a DSP unit 14 . These are necessary elements so as to achieve the wireless communication.
  • the antenna 10 is used for receiving and transmitting signal.
  • the RF unit 12 is used for processing radio frequency signal.
  • the DSP unit 14 is used for coding and decoding the signal.
  • FIG. 2 shows the architecture of a wireless network card 2 .
  • the wireless network card 2 is formed as a rectangle and hollow housing which comprises an antenna 22 , a RF unit and a DSP unit wherein the RF unit and the DSP unit are installed within the housing.
  • the antenna 2 protrudes the housing.
  • the external wireless network card 2 must be carried so that it may cause damage of the wireless network card 2 .
  • the wireless network card 2 can be built-up in the notebook computer, it is convenient for users and decreases the possibility of the damage for the wireless network card 2 .
  • FIG. 3 it shows another type of a wireless network card 3 .
  • the wireless network card 3 is built within a main board 42 of a notebook computer 4 .
  • An antenna 32 of the wireless network card 3 is electroplated so that it can be fixed on the main board 42 .
  • a RF unit 34 and a DSP unit 36 are formed within an IC chip which can be bounded in the main board 42 .
  • the housing of the present notebook computer 4 is formed of an alloy of magnesium and aluminum and the antenna 32 is fixed between electric components of the main board 42 .
  • the shielding effectiveness will influence the transmitting quality of the wireless network card 4 .
  • Another object of the present invention is to provide an antenna for a portable device and the antenna is installed within a hinge for increasing the transmitting quality of the network card and decreasing the shielding effectiveness.
  • the portable device comprises a display, a host.
  • a hinge is provided to connect the display and the host such that the display can be rotated relative to the host. Therefore, the portable device can be opened and closed accordingly.
  • a receiver is installed within the hinge so that an antenna can be fixed in the hinge.
  • FIG. 1 schematically depicts a circuit diagram of a wireless network card
  • FIG. 2 schematically depicts a conventional wireless network card
  • FIG. 3 schematically depicts a perspective view of another type of a conventional wireless network card
  • FIG. 4 shows a perspective view of a notebook computer having an antenna in accordance with a first preferred embodiment of the present invention
  • FIG. 5 schematically depicts partly enlarged view of a hinge in accordance with the first preferred embodiment of the present invention
  • FIG. 6 shows a perspective view of a notebook computer having an antenna in accordance with a second preferred embodiment of the present invention
  • FIG. 7 schematically depicts partly enlarged view of a hinge in accordance with the second preferred embodiment of the present invention.
  • FIG. 8 shows the signal gain comparison of the antenna of the present invention when the display is open.
  • FIG. 9 shows the signal gain comparison of the antenna of the present invention when the display is closed.
  • FIG. 4 shows a perspective view of a portable device having an antenna in accordance with a first preferred embodiment of the present invention.
  • the portable device is a kind of electric information apparatus having an open state and a close state, i.e. a notebook computer or a personal digital assistance (PDA).
  • a notebook computer will be identified as the portable device in the following description so as to clearly the content of the present invention.
  • the notebook computer 5 comprises a display 51 an a host 52 , wherein the host 52 proceeds with digital data and the display 51 outputs the proceeded data.
  • the display 51 is connected to the host 52 through a hinge 53 .
  • the hinge 53 has pivot portions 531 , 532 and 533 to provide rotating machine so that the display 51 can be rotated relative to the host 52 and has the open state and the close state.
  • the display 51 and the host 52 are rectangle plates.
  • the display 51 is a LCD panel and the host 52 comprises a keyboard 521 and a main board.
  • the hinge 53 of the notebook computer 5 comprises a non-pivot portion 53 and the non-pivot portion 53 is hollow.
  • This hollow structure forms receivers 534 b and 534 b so that an antenna 6 can be installed within the hollow structure as shown in FIG. 5.
  • the antenna 6 should be selected from mini antennas, such as inversed F type antennas, ceramics antennas, rod antennas or spiral antennas.
  • the antenna 6 should be coupled to a RF unit 61 and a DSP unit 62 to convert the received signal
  • the RF unit 61 and the DSP unit 62 can be formed on a circuit board 63 and the circuit board 63 and the antenna 6 are together installed within the receiver 534 of the non-pivot portion 53 .
  • the RF unit 61 and the DSP unit 62 can be also coupled on the main board 54 of the notebook computer 54 and these units are connected to the antenna 6 through wires.
  • FIG. 4 shows a perspective view of a notebook computer 5 a having an antenna 53 a in accordance with a second preferred embodiment of the present invention.
  • the most popular wireless international protocols are Bluetooth protocol and IEEE 802.11 protocol. However, these protocols can not communicate each other and the computer system merely selects one of these protocols.
  • the present invention provides two receivers 543 a and 534 b on two sides of hinges 53 a in the notebook computer 5 a so that a first antenna 6 a and a second antenna 6 b can be installed with the receivers 543 a and 534 b separately.
  • the first antenna 6 a can be installed for the use of Bluetooth protocol and the second antenna 6 b can be installed for the use of IEEE 802.11 protocol.
  • the RF units 61 a , 61 b and DSP units 62 a , 62 b can be formed on circuit boards 63 a , 63 b and the circuit boards 63 a , 63 b and the antennas 6 a , 6 b are together installed within the receivers 534 a , 534 b of the non-pivot portions 53 a .
  • a chip set combining the RF unit function and the DSP unit function can be also coupled on the main board of the notebook computer 54 and the chip set is connected to the antennas 6 a and 6 b through wires.
  • the present invention merely needs one chip set for proceeding with digital signal.
  • FIG. 8 shows the signal gain comparison of the antenna of the present invention when the display is open.
  • the experiment data shows vertical pole gain (V-pol),horizontal polegarn (H-pol) and isotropic antenna gain of the monopole antenna.
  • V-pol vertical pole gain
  • H-pol horizontal polegarn
  • I curve indicates the gain of the monopole antenna from 0° to 360° of the spherical surface area and it is nearly 0 dBi.
  • V curve and H curve indicate the vertical pole gain and the horizontal pole garn from the same area.
  • FIG. 8 discloses the compensation for the vertical pole and the horizontal pole in every angle of this area.
  • the average gain of the present invention is ⁇ 0.43 dBi and it is quite closed to the gain value of the monopole antenna.
  • FIG. 9 shows the signal gain comparison of the antenna of the present invention when the display is closed.
  • the experiment data shows verticalpole gain (V-pol), horizontal pole garn (H-pol) and isotropic antenna gain of the monopole antenna and it is nearly 0 dBi.
  • I curve indicates the gain of themonopole antenna from 0° to 360° of the spherical surface area.
  • V curve and H curve indicate the vertical pole gain and the horizontal pole garn from the same area.
  • FIG. 9 discloses the compensation for the vertical pole and the horizontal pole in every angle of this area.
  • the average gain of the present invention is 0.47 dBi and it is quite closed to the gain value of the monopole antenna.

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  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Transceivers (AREA)

Abstract

This invention relates to an antenna for a portable device. The portable device comprises a display, a host. In addition, a hinge is provided to connect the display and the host such that the display can be rotated relative to the host. Therefore, the portable device can be opened and closed accordingly. Furthermore, a receiver is installed within the hinge so that an antenna can be fixed in the hinge. Thereby, wireless transmitting of the portable device can be achieved through the antenna.

Description

    BACKGROUND OF THE INVENTION
  • 1. Field of the Invention [0001]
  • The present invention relates an antenna for a portable device, and especially relates for an antenna which is received within a hinge of the portable device and is combined into the portable device, such as a notebook computer or a personal digital assistance. Thus, the present invention provides a wireless communication of the portable device. [0002]
  • 2. Description of the Related Art [0003]
  • A local area network (LAN) means that several computers are connected each other in a specified area. For instance, two or more computers have working stations installed thereon and are connected through cable or wireless communication. Therefore, computers in the LAN can share and transmit data. [0004]
  • Most computers recently are connected through cables. However, the following defects occurs by using cables to form the LAN. Firstly, it is difficult and expensive to change the location of the client computer after completely installation of the network. Second of all, the cable should be added or removed if new client computer have been changed. This would be heavy work for the network provider. Thirdly, a cable network installation may have a great influence on the view of the building. Furthermore, the cable network installation is not so flexible in arrangement. [0005]
  • For stated above, wireless LAN technology is increasingly developed and it is intend to replace the cable network installation. [0006]
  • Please refer to FIG. 1 which shows a circuit diagram of a wireless network card. The circuit diagram comprises an [0007] antenna 10, a RF unit 12 and a DSP unit 14. These are necessary elements so as to achieve the wireless communication. The antenna 10 is used for receiving and transmitting signal. The RF unit 12 is used for processing radio frequency signal. The DSP unit 14 is used for coding and decoding the signal.
  • FIG. 2 shows the architecture of a [0008] wireless network card 2. The wireless network card 2 is formed as a rectangle and hollow housing which comprises an antenna 22, a RF unit and a DSP unit wherein the RF unit and the DSP unit are installed within the housing. For increasing the performance of the transmitting of the wireless network card 2, the antenna 2 protrudes the housing. However, such installation will cause inconvenient for end users when moving or operating the computer. Especially for the user of the notebook computer, the external wireless network card 2 must be carried so that it may cause damage of the wireless network card 2. Thus, if the wireless network card 2 can be built-up in the notebook computer, it is convenient for users and decreases the possibility of the damage for the wireless network card 2.
  • Referring to FIG. 3, it shows another type of a [0009] wireless network card 3. The wireless network card 3 is built within a main board 42 of a notebook computer 4. An antenna 32 of the wireless network card 3 is electroplated so that it can be fixed on the main board 42. Furthermore, a RF unit 34 and a DSP unit 36 are formed within an IC chip which can be bounded in the main board 42. Thus, a small volume of the card and convenient use for the card can be achieved by the built-up wireless network card 3. However, the housing of the present notebook computer 4 is formed of an alloy of magnesium and aluminum and the antenna 32 is fixed between electric components of the main board 42. Thus, the shielding effectiveness will influence the transmitting quality of the wireless network card 4.
    • SUMMARY OF THE INVENTION
  • Therefore, it is an objective of the present invention to provide an antenna for a portable device and the antenna is installed within a hinge for increasing the convenience of the operation and carry for users. [0010]
  • Another object of the present invention is to provide an antenna for a portable device and the antenna is installed within a hinge for increasing the transmitting quality of the network card and decreasing the shielding effectiveness. [0011]
  • The portable device comprises a display, a host. In addition, a hinge is provided to connect the display and the host such that the display can be rotated relative to the host. Therefore, the portable device can be opened and closed accordingly. Furthermore, a receiver is installed within the hinge so that an antenna can be fixed in the hinge.[0012]
    • BRIEF DESCRIPTION OF DRAWINGS
  • The above, as well as other advantages of the present invention, will become readily apparent to those skilled in the art from the following detailed description of a preferred embodiment when considered in the light of the accompanying drawings in which: [0013]
  • FIG. 1 schematically depicts a circuit diagram of a wireless network card; [0014]
  • FIG. 2 schematically depicts a conventional wireless network card; [0015]
  • FIG. 3 schematically depicts a perspective view of another type of a conventional wireless network card; [0016]
  • FIG. 4 shows a perspective view of a notebook computer having an antenna in accordance with a first preferred embodiment of the present invention; [0017]
  • FIG. 5 schematically depicts partly enlarged view of a hinge in accordance with the first preferred embodiment of the present invention; [0018]
  • FIG. 6 shows a perspective view of a notebook computer having an antenna in accordance with a second preferred embodiment of the present invention; [0019]
  • FIG. 7 schematically depicts partly enlarged view of a hinge in accordance with the second preferred embodiment of the present invention; [0020]
  • FIG. 8 shows the signal gain comparison of the antenna of the present invention when the display is open; and, [0021]
  • FIG. 9 shows the signal gain comparison of the antenna of the present invention when the display is closed.[0022]
    • DETAILED DESCRIPTION OF THE INVENTION
  • With reference to FIG. 4, it shows a perspective view of a portable device having an antenna in accordance with a first preferred embodiment of the present invention. The portable device is a kind of electric information apparatus having an open state and a close state, i.e. a notebook computer or a personal digital assistance (PDA). A notebook computer will be identified as the portable device in the following description so as to clearly the content of the present invention. The [0023] notebook computer 5 comprises a display 51 an a host 52, wherein the host 52 proceeds with digital data and the display 51 outputs the proceeded data. The display 51 is connected to the host 52 through a hinge 53. The hinge 53 has pivot portions 531, 532 and 533 to provide rotating machine so that the display 51 can be rotated relative to the host 52 and has the open state and the close state. As shown in FIG. 4, the display 51 and the host 52 are rectangle plates. In a preferred embodiment, the display 51 is a LCD panel and the host 52 comprises a keyboard 521 and a main board.
  • The [0024] hinge 53 of the notebook computer 5 comprises a non-pivot portion 53 and the non-pivot portion 53 is hollow. This hollow structure forms receivers 534 b and 534 b so that an antenna 6 can be installed within the hollow structure as shown in FIG. 5. As the hinge 53 of the notebook computer 5 is not so big to receive all kind of antennas, the antenna 6 should be selected from mini antennas, such as inversed F type antennas, ceramics antennas, rod antennas or spiral antennas.
  • In addition, as the [0025] antenna 6 should be coupled to a RF unit 61 and a DSP unit 62 to convert the received signal, the RF unit 61 and the DSP unit 62 can be formed on a circuit board 63 and the circuit board 63 and the antenna 6 are together installed within the receiver 534 of the non-pivot portion 53. In another embodiment, the RF unit 61 and the DSP unit 62 can be also coupled on the main board 54 of the notebook computer 54 and these units are connected to the antenna 6 through wires.
  • With reference to FIG. 4, it shows a perspective view of a [0026] notebook computer 5 a having an antenna 53 a in accordance with a second preferred embodiment of the present invention. The most popular wireless international protocols are Bluetooth protocol and IEEE 802.11 protocol. However, these protocols can not communicate each other and the computer system merely selects one of these protocols. For stated above, the present invention provides two receivers 543 a and 534 b on two sides of hinges 53 a in the notebook computer 5 a so that a first antenna 6 a and a second antenna 6 b can be installed with the receivers 543 a and 534 b separately. The first antenna 6 a can be installed for the use of Bluetooth protocol and the second antenna 6 b can be installed for the use of IEEE 802.11 protocol.
  • In the second embodiment, there are two [0027] antennas 6 a and 6 b installed within the notebook computer 5 a for receiving signal from two different protocols. Thus, the user of the notebook computer 5 a can enable either select Bluetooth protocol or IEEE 802.11 protocol by selecting one of the antennas 6 a and 6 b. Furthermore, as shown in FIG. 7, the first antenna 6 a and the second antenna 6 b should be coupled to RF units 61 a, 61 b and DSP units 62 a, 62 b separately so as to convert the received signal. The RF units 61 a, 61 b and DSP units 62 a, 62 b can be formed on circuit boards 63 a, 63 b and the circuit boards 63 a, 63 b and the antennas 6 a, 6 b are together installed within the receivers 534 a, 534 b of the non-pivot portions 53 a. In another embodiment, a chip set combining the RF unit function and the DSP unit function can be also coupled on the main board of the notebook computer 54 and the chip set is connected to the antennas 6 a and 6 b through wires. Thus, the present invention merely needs one chip set for proceeding with digital signal.
  • FIG. 8 shows the signal gain comparison of the antenna of the present invention when the display is open. The experiment data shows vertical pole gain (V-pol),horizontal polegarn (H-pol) and isotropic antenna gain of the monopole antenna. As shown in FIG. 8, I curve indicates the gain of the monopole antenna from 0° to 360° of the spherical surface area and it is nearly 0 dBi. Similarly, V curve and H curve indicate the vertical pole gain and the horizontal pole garn from the same area. It is noted that FIG. 8 discloses the compensation for the vertical pole and the horizontal pole in every angle of this area. The average gain of the present invention is −0.43 dBi and it is quite closed to the gain value of the monopole antenna. [0028]
  • FIG. 9 shows the signal gain comparison of the antenna of the present invention when the display is closed. The experiment data shows verticalpole gain (V-pol), horizontal pole garn (H-pol) and isotropic antenna gain of the monopole antenna and it is nearly 0 dBi. As shown in FIG. 9, I curve indicates the gain of themonopole antenna from 0° to 360° of the spherical surface area. Similarly, V curve and H curve indicate the vertical pole gain and the horizontal pole garn from the same area. It is noted that FIG. 9 discloses the compensation for the vertical pole and the horizontal pole in every angle of this area. The average gain of the present invention is 0.47 dBi and it is quite closed to the gain value of the monopole antenna. [0029]
  • While the invention has been described with reference to various illustrative embodiments, the description is not intended to be construed in a limiting sense. Various modifications of the illustrative embodiments, as well as other embodiments of the invention, will be apparent to those persons skilled in the art upon reference to this description. It is therefore contemplated that the appended claims will cover any such modifications or embodiments as may fall within the scope of the invention defined by the following claims and their equivalents. [0030]

Claims (14)

What is claimed is:
1. An antenna of a portable device, the portable device having a display, a host and a hinge which is provided to connect the display and the host so that the portable device has a open state and a close state, characterized in that:
said hinge having a receiver so as to receive the antenna within thereof.
2. The antenna as claimed in
claim 1
, wherein the portable device is a notebook computer.
3. The antenna as claimed in
claim 1
, wherein the portable device is a personal digital assistance.
4. The antenna as claimed in
claim 1
, wherein the portable device further comprises a RF unit and a DSP unit to proceed and convert the received signal.
5. The antenna as claimed in
claim 4
, wherein the RF unit and the DSP unit are bounded on a circuit board.
6. The antenna as claimed in
claim 4
, wherein the RF unit and the DSP unit are formed on a chip set and is connected on a main board of the portable device.
7. The antenna as claimed in
claim 1
, wherein said hinge comprises two receivers to receive two antennas so that each antenna receives signals of Bluetooth protocol and IEEE 802.11 protocol.
8. The antenna as claimed in
claim 1
, wherein the antenna is a inversed F type antenna.
9. The antenna as claimed in
claim 1
, wherein the antenna is a ceramics antenna.
10. A portable device comprising:
a host to processing data;
a display to output the processing data;
a hinge which is provided to connect the display and the host so that the portable device has a open state and a close state, said hinge has a receiver formed thereof; and,
an antenna which is received within said receiver to provide wireless communication.
11. The antenna as claimed in
claim 10
, wherein the portable device further comprises a RF unit and a DSP unit to proceed and convert the received signal.
12. The antenna as claimed in
claim 11
, wherein the RF unit and the DSP unit are bounded on a circuit board.
13. The antenna as claimed in
claim 11
, wherein the RF unit and the DSP unit are formed on a chip set and is connected on a main board of the portable device.
14. The antenna as claimed in
claim 10
, wherein said hinge comprises two receivers to receive two antennas so that each antenna receives signals of Bluetooth protocol and IEEE 802.11 protocol.
US09/853,785 2000-05-12 2001-05-14 Antenna for portable device Expired - Lifetime US6414643B2 (en)

Applications Claiming Priority (3)

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TW089109194 2000-05-12
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US20090174612A1 (en) * 2008-01-04 2009-07-09 Enrique Ayala Antennas and antenna carrier structures for electronic devices
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