WO2004073108A1 - 電子機器 - Google Patents
電子機器 Download PDFInfo
- Publication number
- WO2004073108A1 WO2004073108A1 PCT/JP2003/001537 JP0301537W WO2004073108A1 WO 2004073108 A1 WO2004073108 A1 WO 2004073108A1 JP 0301537 W JP0301537 W JP 0301537W WO 2004073108 A1 WO2004073108 A1 WO 2004073108A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antenna
- dielectric
- electronic device
- moving mechanism
- wireless
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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; CALCULATING OR 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
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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
- H01Q1/12—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
-
- 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
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- 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
-
- 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
- H01Q9/0442—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with particular tuning means
-
- 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
- H01Q9/06—Details
- H01Q9/14—Length of element or elements adjustable
-
- 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
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
- H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
Definitions
- the present invention relates to an electronic device having a built-in antenna for wireless communication.
- wireless communication systems such as wireless LANs and Bluetooth (R)
- wireless communication systems for example, 2 5 GH Z band and Is for radio waves using the 5 GH z band;. T Ru.
- antennas for wireless communication for example, dipole antennas, helical antennas, slot antennas, and reverse antennas
- the resonance frequency of the antenna is determined by the shape and size of the antenna and the surrounding environment. Normally, one resonance frequency band is assigned to one antenna.>-Because of this, when using multiple wireless modules with different frequency bands, each wireless module c where Razz Do need to install a plurality of Antena, the problems on installation space occurs
- the antenna can be structurally balanced with one antenna.
- the vibration frequency is limited, and when the number is more than a predetermined number (for example, three), the antenna size becomes extremely large and the shape becomes complicated. Further, if one antenna has a plurality of resonance frequencies, there is a disadvantage that the usable band becomes narrow.
- the electronic device of the present invention includes a plurality of radio modules having different frequency bands, a line module, an antenna commonly used for each of the above radio modules, and a lossy dielectric near the antenna.
- a moving mechanism for supporting the dielectric material in a movable white space with respect to the antenna, and adjusting a distance between the antenna and the dielectric material by the moving mechanism to set a resonance frequency of the antenna to each of the wireless devices.
- the resonance frequency of the antenna can be changed for each line and each line module. Can be done.
- FIG. 1 is a perspective view showing an external configuration of a personal computer according to the first embodiment of the present invention.
- FIG. 2 is a diagram showing a configuration of an antenna used in the personal computer.
- Fig. 3 is a side sectional view showing the state where the above antenna is mounted. You.
- Figure 4 is an equivalent circuit showing the frequency characteristics of the above antenna.
- 5A to 5C are diagrams illustrating examples of the resonance frequency of the antenna.
- FIG. 6A and FIG. 6B are diagrams showing a configuration example of a moving mechanism for moving the dielectric in a direction perpendicular to the antenna.
- FIG. 7 is a diagram showing a configuration example of a moving mechanism for moving the dielectric in the horizontal direction with respect to the antenna.
- FIG. 8 is a diagram showing a configuration of a personal computer according to the second embodiment of the present invention.
- Fig. 9 is a flow chart showing the control of the position of the dielectric by the personal computer.
- Fig. 10 is a diagram showing an example of a configuration in which the body is BX-bent on the antenna
- FIG. 1 is an external view of an electronic device according to a first embodiment of the present invention.
- ⁇ C 1 which is an electronic machine of the present invention, includes a plurality of C, line modules 10 a, 10 b, and 10 c having different frequency bands used for wireless communication.
- a module equipped with 10c ... can optionally use one of these wireless modules 10a ... 10b ⁇ 10c ... Wireless communication.
- the types of wireless communication are as follows.
- 1a is a wireless LAN communication standard defined by the IEEE 802.11.1J J-group.
- (R) is the communication standard for short-range wireless communication systems, PDC,
- GSM GSM
- IS-136 IS-136
- CdmaOne (R) can be specified as communication standards for mobile radio communication systems.
- PC 1 shall have at least two wireless modules (radio equipment) for realizing these wireless communications.
- PC 1 is the main body case 2 and front case 3 and the CD panel
- the body case 2 has 4 and a keypad, and 5.
- the body case 2 has a keyboard 15 on its upper surface.
- the main body case 2 and the display case 3 are rotatably connected by a hinge 6.
- the ⁇ ⁇ case 3 supports the periphery of the LCD panel 4 so that the display area of the LCD panel 4 is visible.
- the display case 3 is moved in the directions of arrows a 1-a 2 through the hinge 6. It is pivotable. That is, the display case 3 is rotatable between a closed position that covers the keyboard 5 and an open position that enables the keyboard 5 to be used.
- the body case 2 and the display case 3 are formed of a dielectric such as a synthetic resin, for example.
- an antenna 7 for wireless communication used in, for example, a wireless LAN (IEEE802.lib) is provided.
- the IEEE802.lib. Is one of the wireless communication standards that uses the 2.4 GHz band ISM (Industry Science Medical) node, and is directly expanded as a spread spectrum method. It is possible to communicate at a maximum communication speed of 11 Mbps using the direct sequence spread spectrum (DSSS).
- DSSS direct sequence spread spectrum
- the antenna 7 should be placed at a high position to improve its receiving sensitivity.
- a flat antenna 7 is provided on the upper part of the display unit case 3 which is at a high position during use. This antenna 7 is commonly used for each of the wireless modules 10a, 10b, 10c ... mounted on the PC1.
- the antenna 7 for example, an inverted F-type antenna as shown in FIG. 2 is used.
- the inverted F-type antenna 7 uses, for example, a rectangular antenna substrate 11 and has a groove 12 along its upper side, so that a radio wave radiating element is provided on the upper side of the antenna substrate 11.
- Element 13 is formed, and the other area is set to GND (ground) 14.
- Element 13 also has a near base.
- a power supply point 15 is provided at a different position.
- the i LW is set so that the impedance at the feeding point 15 becomes, for example, 50 ⁇ .
- the antenna substrate 11 uses a metal plate having a thickness of, for example, about 0.1 mm, and both sides thereof are protected by a laminating process.
- the width W of the antenna substrate 11 is approximately equal to the wavelength ( ⁇ ) of the desired frequency.
- the physical size of the antenna substrate 11 is, for example, about 30 ⁇ 30 mm when using a 2.4 GHz band radio wave.
- the width of the groove 12 is about 2 mm, and the width of the element 13 is about 1 mm.
- the resonance frequency of the antenna 7 is determined according to the length of D.
- FIG. 3 is a side sectional view showing a state in which the inverted F-type antenna 7 is mounted on the display case 3.
- the antenna 7 is fixed to the upper part of the display case 3 using an adhesive.
- the antenna 7 is provided such that the side on which the element 13 is formed projects a predetermined width (for example, about -56 mm) above the upper end of the LCD panel 4. Therefore, the transmission and reception of radio waves by the element 13 are not affected by the LCD node 4.
- the dielectric 8 is provided movably on one side of the antenna 7 by a moving mechanism described later.
- This dielectric material 8 has a small Both have a size that includes a radio wave radiating portion formed at the upper end of the antenna 7. As a result, the radio wave radiating portion of the antenna 7 is easily affected by the dielectric constant of the dielectric 8.
- the resonance frequency of the antenna 7 moves to the lower side by the frequency dependent on the dielectric constant of the dielectric 8.
- the degree of the effect of the dielectric constant of the dielectric 8 on the antenna 7 decreases as the distance D between the antenna 7 and the dielectric 8 increases. Therefore, the resonance frequency of the antenna 7 moves to the higher side.
- FIG. 4 is an equivalent circuit showing the frequency characteristics of the antenna 7.
- the antenna 7 can be represented by a series circuit of a coil L and a capacitor C as shown in FIG.
- the inductance of the coil L depends on the length of the element 13 of the antenna 7 and the position of the feed point 15.
- the resonance frequency f 0 of the antenna 7 is
- Capacitor C 1 (2 ⁇ V L C) ⁇ ⁇ ⁇ (1)
- FIG. 5B shows a case where the distance D between the antenna 7 and the dielectric 8 is 1 mm.
- FIG. 5C shows a case where the distance D between the antenna 7 and the dielectric 8 is O mm (that is, when the dielectric 8 is in close contact with the antenna 7).
- the horizontal axis represents frequency [GHz]
- the vertical axis represents radio wave return.
- the resonance frequency of the antenna 7 under the influence of the dielectric 8 is 2.617 GHz.
- the resonance frequency of the antenna 7 is determined according to the distance D between the antenna 7 and the dielectric 8.
- the position of the dielectric 8 is adjusted by a moving mechanism 21 as shown in FIGS. 6A and 6B, for example.
- FIG. 6A and 6B are diagrams showing an example of the configuration of a moving mechanism 21 for moving the dielectric 8 in a direction perpendicular to the surface of the antenna 7.
- the moving mechanism 21 includes a circular scale plate 22, a circular rotary plate 23 rotating on the scale plate 22, and the rotary plate 23. And a knob 24 provided above.
- the scale plate 22 is fixed to the upper end of the display case 3 with an adhesive or the like.
- the rotating plate 23 rotates around the shaft 23a.
- the rotating plate 23 is slidably attached to the center point 25 of the dielectric 8.
- the knob 24 is used as an operation unit for moving the dielectric 8.
- the dielectric 8 moves to the antenna 7 in the direction of the arrow c1.
- the dielectric 8 moves while keeping a parallel state with the antenna 7 while being guided by a guide mechanism (not shown) provided in the display unit case 3.
- the distance D between the antenna 7 and the dielectric 8 is reduced by the movement of the dielectric 8 in the direction of the arrow cl. As a result, the resonance frequency band of the antenna 7 is adjusted to a lower one.
- a plurality of scales 26 are marked on the outer periphery of the scale plate 22 along the circumferential direction. These scales 26 are adjusted to the frequency bands of a plurality of wireless modules 10a, 10b, 10c ... mounted on PC1. The user can easily perform the frequency adjustment operation using these scales 26 as a guide.
- the rotating plate 23 has a structure that can be rotated step by step on each of the scales 26.
- FIG. 6B shows a state where the rotating plate 23 is rotated to the third scale position. In this state, turn the rotating plate 23 in the direction of arrow b2. When rotated, the dielectric 8 moves in the direction of arrow c2. As a result, the resonance frequency band of the antenna 7 is adjusted to be higher.
- the coaxial frequency band of the antenna 7 can be switched. Therefore, it is possible to cover all the frequency bands of the respective wireless modules 10a, 10b, 10c... With only one antenna 7.
- the resonance frequency band of the antenna 7 is appropriately switched by the movement of the dielectric member 8, the structure is different from the conventional structure in which the antenna 7 has a plurality of resonance frequency bands.
- the shape of the antenna 7 is not complicated. Also, the usable bandwidth is not narrowed. 'In the examples of FIGS. 6A and 6B, the case where the dielectric body 8 is moved in three steps is shown, but it is also possible to move the dielectric body 8 more finely.
- the resonance frequency band of the antenna 7 can be adjusted as described above. .
- FIG. 7 is a diagram showing a configuration example of a moving mechanism 31 for moving the dielectric 8 in the horizontal direction with respect to the surface of the antenna 7.
- the moving mechanism 31 includes a slide hole 32, an operation part 33 fitted in the slide hole 32, and a support member 34 attached to the operation part 33. And.
- the slide hole 32 is formed at the upper end of the display case 3 with the antenna 7 in the longitudinal direction.
- the operation part 3 3 can be freely inserted into this slide hole 3 2 Has been damaged.
- the support member 34 extends from the bottom of the operation section 33 and supports the dielectric 8 through the slide hole 32.
- the frequency adjustment operation can be easily performed with reference to 5.
- the operation unit 33 has a structure that can be slid stepwise at each of these scales 35. .
- FIG. 7 shows the case where the dielectric body 8 is moved in three stages, it is possible to move the dielectric body 8 more finely.
- the resonance frequency of the antenna 7 can be varied according to the position of the dielectric 8. You. Thus, all the frequency bands of the wireless modules 10a10b10c... Mounted on the PC 1 can be covered.
- the second embodiment is characterized in that the position of the dielectric 8 is automatically adjusted.
- FIG. 8 is a diagram showing a configuration of PC 1 in the second embodiment of the present invention.
- a dielectric 8 ′ is provided movably with respect to the antenna 7.
- a description will be given assuming that a moving mechanism 21 shown in FIGS. 6A and 6B is used as a moving mechanism of the dielectric 8.
- the rotating plate 23 has a radius r and rotates about a shaft 23a.
- the rotating plate 23 is slidably attached to the center point 25 of the dielectric 8.
- the dielectric 8 is guided by a guide mechanism (not shown) and moves in the direction of the arrow c 1 in parallel with the antenna 7.
- the dielectric 8 moves in the direction opposite to the arrow c1.
- PC 1 includes a driving device 41, an input section 42, a control device 43, and a table 44.
- the driving device 41 rotationally drives the rotating plate 23 based on a control signal output from the control device 43.
- the input section 42 is for inputting a selection signal of a wireless module, and specifically includes a keyboard 5 shown in FIG.
- the control device 43 controls the position of the dielectric 8 by referring to the table 44.
- Table 44 shows the multiple wireless modules mounted on PC 1 (here, wireless modules A, B, and C). Each time, the control signal S, the length of the distance D between the antenna 7 and the dielectric 8, and the information indicating the rotation angle of the rotating plate 23 are set. Next, the operation of the second embodiment will be described.
- FIG. 9 is a flowchart showing position control of the dielectric 8 in the second embodiment. The processing shown in this flowchart is executed by the control device 43 reading the program 43a.
- the user selects one of these modules A, B, and C on a menu screen (not shown) to perform wireless communication.
- the selection signal (signal indicating the radio module selected by the user) is input through the input section 42 and the control device 4 is turned on.
- control device 43 first determines which wireless module has been used based on the selection signal (step S12).
- the use state of each c,... Line module can also be discriminated from the OS (Operating System) or the activation state of the linos.
- the control device 43 refers to the table 44 to determine the position of the dielectric 8 corresponding to the wireless module A. to decide
- Step S14 In the example of the table 44 shown in FIG. 8, the position of the dielectric 8 is D 1 with respect to the radio module A, and the control signal therefor is “01”. Therefore, the control device 4 3 outputs a control signal “01” to the driving device 41, thereby rotating the rotating plate 23 by a predetermined angle (Step S15), and connecting the antenna 7 and the dielectric 8 with each other. Adjust the interval to D 1 (Step S14).
- control device 43 outputs the control signal "10" to the drive device 41 by referring to the table 44. -And by the antenna
- control device 43 outputs the control signal "11" to the drive device 41 with reference to the conditioner 44, whereby the antenna 7 and the dielectric 8 are connected to each other. Adjust the interval to D3 (Step S2
- the distance D between the antenna 7 and the dielectric 8 is automatically adjusted according to the use state of each wireless module. Therefore, as in the first embodiment, the resonance frequency of the antenna 7 can be switched for each wireless module without the user performing the frequency adjustment operation. .
- the present invention is not limited to this, and a sliding mechanism that can slide in a direction perpendicular to the antenna surface can be used for a week.
- the dielectric 8 is provided only on one side of the antenna 7.
- the dielectric 8 is provided on both sides of the antenna 7.
- a and 8b may be provided, respectively, and the dielectrics 8a and 8b may be movably supported by the moving mechanism 21 or the moving mechanism 31 with respect to the antenna 7.
- the resonance frequency band of the antenna 7 is determined by the distance Da between the antenna 7 and the dielectric 8a and the distance Db between the antenna 7 and the dielectric 8b.
- the relative dielectric constant is increased by using two dielectrics, so that the adjustment width of the resonance frequency can be increased.
- many resonance frequencies can be switched.
- the control signal for each wireless module and the intervals D a and D b between the antenna 7 and the dielectrics 8 a and 8 b are stored in a table. By setting the indicated information, it is possible to adjust the resonance frequency of the antenna 7 according to the usage state of each wireless module.
- the processing procedure at this time is the same as in FIG. That is, first, the control device 43 determines a wireless module used for communication among the wireless modules. Next, the control device 4 3 The position information of the electric bodies 8a and 8b corresponding to the determined wireless module is stored in the above table. Next, the control device 43 drives the respective moving mechanisms based on the position information of the upper body (body 8a 8b) to move each dielectric 8a 8b to a predetermined position. By being moved, the resonance frequency of the antenna 7 is automatically adjusted.
- Example X Other antennas such as dipole antennas, helicopter antennas and slot antennas can be used.
- the electronic device of the present invention is not limited to a personal computer.
- the electronic device requires an antenna for one line, such as a mobile phone, all the electronic devices are required. Can be applied to
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- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & 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)
- Waveguide Aerials (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNA038011026A CN1610989A (zh) | 2003-02-14 | 2003-02-14 | 电子设备 |
PCT/JP2003/001537 WO2004073108A1 (ja) | 2003-02-14 | 2003-02-14 | 電子機器 |
EP03705149A EP1638163A1 (en) | 2003-02-14 | 2003-02-14 | Electronic device |
JP2004568188A JPWO2004073108A1 (ja) | 2003-02-14 | 2003-02-14 | 電子機器 |
US10/608,522 US20040162033A1 (en) | 2003-02-14 | 2003-06-27 | Electronic apparatus having an antenna with variable dielectric to optimize radio communications at different frequencies |
US10/776,801 US6967623B2 (en) | 2003-02-14 | 2004-02-10 | Electronic apparatus having an antenna with variable dielectric to optimize radio communications at different frequencies |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2003/001537 WO2004073108A1 (ja) | 2003-02-14 | 2003-02-14 | 電子機器 |
Publications (1)
Publication Number | Publication Date |
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WO2004073108A1 true WO2004073108A1 (ja) | 2004-08-26 |
Family
ID=32866118
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2003/001537 WO2004073108A1 (ja) | 2003-02-14 | 2003-02-14 | 電子機器 |
Country Status (5)
Country | Link |
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US (2) | US20040162033A1 (ja) |
EP (1) | EP1638163A1 (ja) |
JP (1) | JPWO2004073108A1 (ja) |
CN (1) | CN1610989A (ja) |
WO (1) | WO2004073108A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004097976A2 (en) * | 2003-04-28 | 2004-11-11 | Itt Manufacturing Enterprises, Inc | Tuneable antenna |
JP2021040299A (ja) * | 2019-08-30 | 2021-03-11 | 株式会社オートネットワーク技術研究所 | 車載通信装置 |
Families Citing this family (12)
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JPWO2004073108A1 (ja) * | 2003-02-14 | 2006-06-01 | 株式会社東芝 | 電子機器 |
JP4829085B2 (ja) * | 2006-11-30 | 2011-11-30 | 株式会社東芝 | 電子機器 |
JP4235149B2 (ja) * | 2004-07-02 | 2009-03-11 | インターナショナル・ビジネス・マシーンズ・コーポレーション | ノートブック型コンピュータ |
BRPI0520359B1 (pt) * | 2005-07-04 | 2018-10-09 | Ericsson Telefon Ab L M | dispositivo eletrônico para uso pessoal |
US20070076362A1 (en) * | 2005-09-30 | 2007-04-05 | Isaac Lagnado | Computer device having multi-function handle |
TWI322528B (en) * | 2005-10-17 | 2010-03-21 | Hon Hai Prec Ind Co Ltd | Antenna frequency modulating device |
CN1960057B (zh) * | 2005-10-31 | 2011-06-15 | 富士康(昆山)电脑接插件有限公司 | 天线频率调节装置 |
US7242355B2 (en) * | 2005-11-23 | 2007-07-10 | Sony Ericsson Mobile Communications Ab | Frequency band switching of an antenna arrangement |
JP4977438B2 (ja) * | 2006-10-25 | 2012-07-18 | 日本電気株式会社 | 通信装置及びそれを用いた携帯通信端末 |
CN102017404B (zh) * | 2007-11-16 | 2013-11-20 | 豪沃基金有限责任公司 | 基于超材料结构的滤波器设计方法和滤波器 |
EP2279566A4 (en) * | 2008-05-06 | 2015-01-21 | Hollinworth Fund L L C | SINGLE CABLE ANTENNA MODULE FOR LAPTOP COMPUTER AND MOBILE DEVICES |
US8442467B1 (en) * | 2009-02-18 | 2013-05-14 | Sprint Communications Company L.P. | Wireless communication device with a multi-band antenna |
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2003
- 2003-02-14 JP JP2004568188A patent/JPWO2004073108A1/ja active Pending
- 2003-02-14 CN CNA038011026A patent/CN1610989A/zh active Pending
- 2003-02-14 EP EP03705149A patent/EP1638163A1/en not_active Withdrawn
- 2003-02-14 WO PCT/JP2003/001537 patent/WO2004073108A1/ja not_active Application Discontinuation
- 2003-06-27 US US10/608,522 patent/US20040162033A1/en not_active Abandoned
-
2004
- 2004-02-10 US US10/776,801 patent/US6967623B2/en not_active Expired - Fee Related
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004097976A2 (en) * | 2003-04-28 | 2004-11-11 | Itt Manufacturing Enterprises, Inc | Tuneable antenna |
WO2004097976A3 (en) * | 2003-04-28 | 2005-04-21 | Itt Mfg Enterprises Inc | Tuneable antenna |
JP2021040299A (ja) * | 2019-08-30 | 2021-03-11 | 株式会社オートネットワーク技術研究所 | 車載通信装置 |
JP7413878B2 (ja) | 2019-08-30 | 2024-01-16 | 株式会社オートネットワーク技術研究所 | 車載通信装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1610989A (zh) | 2005-04-27 |
US20040162033A1 (en) | 2004-08-19 |
US20040160371A1 (en) | 2004-08-19 |
EP1638163A4 (en) | 2006-03-22 |
JPWO2004073108A1 (ja) | 2006-06-01 |
EP1638163A1 (en) | 2006-03-22 |
US6967623B2 (en) | 2005-11-22 |
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