WO2006022331A1 - Appareil radio portable pliable - Google Patents

Appareil radio portable pliable Download PDF

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Publication number
WO2006022331A1
WO2006022331A1 PCT/JP2005/015439 JP2005015439W WO2006022331A1 WO 2006022331 A1 WO2006022331 A1 WO 2006022331A1 JP 2005015439 W JP2005015439 W JP 2005015439W WO 2006022331 A1 WO2006022331 A1 WO 2006022331A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna element
housing
antenna
circuit board
power
Prior art date
Application number
PCT/JP2005/015439
Other languages
English (en)
Japanese (ja)
Inventor
Hiroyuki Uejima
Yutaka Saitoh
Tomoaki Nishikido
Kenichi Maeda
Naoki Matsubara
Jyunichi Takada
Original Assignee
Matsushita Electric Industrial Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Publication of WO2006022331A1 publication Critical patent/WO2006022331A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/362—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith for broadside radiating helical 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
    • 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
    • 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
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/08—Helical antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/3827—Portable transceivers
    • H04B1/3833—Hand-held transceivers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R35/00—Flexible or turnable line connectors, i.e. the rotation angle being limited
    • H01R35/02—Flexible line connectors without frictional contact members
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0206—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings
    • H04M1/0208—Portable telephones comprising a plurality of mechanically joined movable body parts, e.g. hinged housings characterized by the relative motions of the body parts
    • H04M1/0214—Foldable telephones, i.e. with body parts pivoting to an open position around an axis parallel to the plane they define in closed position
    • H04M1/0216—Foldable in one direction, i.e. using a one degree of freedom hinge

Definitions

  • the present invention relates to a foldable portable wireless device having a mechanism that can be opened and closed by connecting an upper housing and a lower housing with a hinge portion and can be in an open state and a closed state.
  • GSM Global System for Mobile Communications
  • DCS Digital Communication System
  • PCS Personal Communication Services
  • 9 GHz band Portable radios using UMT S (Universal Mobile Telecommunications System) that use the 2 GHz band have been put on the market, and there is a growing demand for multiband antennas for portable radios.
  • Patent Document 1 As an antenna built in a case of a general foldable portable wireless device, for example, in Patent Document 1, a conductor constituting a part of an upper case is used as an antenna element, and a lower case is provided. A technique for supplying power using a power supply line is disclosed.
  • a matching circuit 11 is provided from a radio circuit 12 to a conductive frame 1 and a conductive hinge part 2 constituting a part of the upper case 9.
  • a technique is known in which the conductive frame 1 and the conductive hinge portion 2 and the ground pattern on the circuit board 4 in the lower case 10 are operated as a dipole antenna by supplying power via the power supply.
  • Patent Document 2 discloses a technique for selecting one of a plurality of antennas by detecting opening and closing of an upper and lower casing. ing.
  • Patent Document 3 discloses a technique of simultaneously feeding power to a plurality of antennas using a power distributor.
  • Patent Document 1 JP 2002-335180 A (Fig. 1)
  • Patent Document 2 JP 2002-354073 A (Fig. 1)
  • Patent Document 3 Japanese Patent Laid-Open No. 2002-77006 (Fig. 3)
  • the antenna gain in the state in which the housing is opened is the internal antenna disclosed in Patent Document 1 and the internal antennas illustrated in FIGS.
  • the conductor plate of the upper casing and the circuit board of the lower casing are close to each other in parallel, so that the radiation resistance decreases and the antenna efficiency deteriorates.
  • the antenna efficiency degradation in the closed state is larger in the low frequency band (800 MHz band and 900 MHz band)! /.
  • the protruding antenna shown in FIGS. 3 and 4 has high antenna efficiency in the closed state, but the antenna gain in the open state is the same as that of the built-in antenna disclosed in Patent Document 1. Lower than the built-in antenna shown in 1 and 2.
  • the antenna disclosed in Patent Document 2 requires opening / closing detection means for the upper and lower housings, antenna switching means, and switching control means, and the antenna switching means increases loss and has a complicated configuration. This makes it difficult to reduce the size and cost.
  • Patent Document 3 requires power distribution means that operate in a wide frequency range in order to realize multiband, and it is difficult to reduce the size and cost.
  • An object of the present invention is a foldable portable radio that has high antenna performance in both a state in which a housing is opened and a state in a plurality of frequency bands, and realizes downsizing and cost reduction. Is to provide a machine. Means for solving the problem
  • the foldable portable wireless device of the present invention includes a first housing, a first antenna element provided in the first housing, and having a plurality of frequency bands used as frequency bands, and the first antenna element.
  • a first power feeding unit that feeds power
  • a second housing, a second antenna element that is provided in the second housing and uses a plurality of frequency bands as a use frequency band, and a second feed that feeds power to the second antenna element
  • a wireless circuit provided, and the wireless circuit distributes power to the first power supply unit and the second power supply unit to supply power.
  • FIG. 1 A back view showing a configuration of an antenna built in a housing of a general folding portable radio device
  • FIG. 2 Segment view showing the configuration of the antenna built into the housing of a typical foldable portable radio
  • FIG. 3 is a rear view showing a configuration of a general folding portable radio device having a protruding antenna.
  • FIG. 4 is a side view showing a configuration of a general folding portable radio device having a protruding antenna. The rear view which shows the structure of the foldable portable radio
  • FIG. 6 is a side view showing the configuration of the folding portable wireless device according to the first embodiment of the present invention in an opened state.
  • FIG. 7 is a perspective view showing the folding portable wireless device according to Embodiment 1 of the present invention in an open state.
  • FIG. 8 is a side view showing a closed state of the folding portable wireless device according to the first embodiment of the present invention.
  • FIG. 10 is a rear view showing the configuration of the folding portable wireless device according to the second embodiment of the present invention in an opened state.
  • FIG. 11 is a side view showing the configuration of the folding portable wireless device according to the second embodiment of the present invention in an opened state.
  • FIG. 12 is a perspective view showing the folding portable wireless device according to Embodiment 2 of the present invention in an open state.
  • FIG. 13 is a diagram showing a detailed configuration of the monopole antenna element in the second embodiment of the present invention.
  • FIG. 14 is a diagram showing a call state using the folding portable wireless device according to the second embodiment of the present invention.
  • FIG. 15 is a rear view showing the configuration of the folding portable wireless device according to the third embodiment of the present invention in an opened state.
  • FIG. 16 is a side view showing the configuration of the folding portable wireless device according to the third embodiment of the present invention in an opened state.
  • FIG. 17 is a back perspective view showing the folding portable wireless device according to Embodiment 3 of the present invention in an opened state.
  • FIG. 18 is a diagram showing a configuration of a trap circuit according to the third embodiment of the present invention.
  • the antenna operating frequency is described as a dual band of 900 MHz band and 2 GHz band.
  • FIG. 5 to 7 show the folding portable wireless device according to Embodiment 1 of the present invention in an opened state.
  • 5 is a rear view of the foldable portable radio
  • FIG. 6 is a side view of the foldable portable radio
  • FIG. 7 is a perspective view of the foldable portable radio.
  • the foldable portable radio device is opened and closed when the upper case 9 and the lower case 10 are connected by the hinge part 2 and rotated about the hinge part 2.
  • Status It can take two states.
  • Fig. 8 shows a side view of the folding portable wireless device in the closed state.
  • the upper case 9 and the lower case 10 are molded products of a resin that is an insulator.
  • the conductive frame 1 is attached to the surface of the upper case 9 (the surface on the + X side), that is, the surface on which the main display portion is generally disposed.
  • the conductive frame 1 is made of a metal having high conductivity, such as a magnesium alloy, and light weight and high strength. As a result, the strength of the thin upper case is ensured, and the conductive frame 1 also operates as an antenna element.
  • the long side length L1 of the conductive frame 1 is, for example, about 90 mm.
  • the hinge fitting 5 and the hinge fitting 8 are rotatably connected by a rotating shaft 7 as a connecting means.
  • the hinge bracket 5, the hinge bracket 8 and the rotating shaft 7 are made of conductive metal and are electrically connected at the contact points between them.
  • a hinge portion 2 is constituted by the hinge fitting 5, the hinge fitting 8, and the rotating shaft 7.
  • the first power supply terminal 3 is connected to a wiring pattern on the circuit board 4 arranged inside the lower case 10 by, for example, panel contact or soldering.
  • the circuit board 4 is a printed circuit board on which circuit components that realize various functions of the portable wireless device are mounted, and a ground pattern serving as a circuit ground potential is formed on almost the entire surface.
  • the helical antenna element 14 has a length of 15 mm to 20 mm and an outer diameter of about 8 mm, and is fixed in the vicinity of the hinge portion 2 of the lower case 10.
  • the second feeding terminal 15 is connected to the lower case 10.
  • it is connected to a wiring pattern on the circuit board 4 arranged inside the panel by panel contact or soldering.
  • the first feeding terminal 3 and the second feeding terminal 15 are electrically connected to a connection point 18 of the wiring pattern on the circuit board 4, and the matching circuit is connected to the connection point 18 from the wireless circuit 12 on the circuit board 4. 11 Power is supplied through.
  • the electric power supplied from the wireless circuit 12 through the matching circuit 11 is converted into the conductive frame 1 and the conductive hinge 2 (collectively referred to as “first antenna element”) and the helical antenna element 14 (this To the “second antenna element”).
  • the first antenna element operates as an upper antenna element having a length L2 (eg, 110 mm).
  • the dotted pattern on the circuit board 4 operates as a lower antenna element having a length L3 (for example, 90 mm).
  • the first antenna element and the ground pattern on the circuit board 4 operate as a dipole antenna.
  • the matching circuit 11 matches the impedances of the first antenna element and the second antenna element to the input impedance (generally 50 ⁇ ) of the radio circuit 12.
  • the gap G between the hinge bracket 8 and the ground pattern on the circuit board 4 be as far as possible (for example, 2 mm or more).
  • both the first antenna element and the second antenna element contribute to radiation, and in particular, the radiation resistance of the first antenna element is high.
  • High antenna gain can be obtained in both frequency bands of Hz and 2 GHz.
  • the first antenna element with the housing shown in FIG. 8 closed has a reduced radiation resistance in the 900 MHz band, but the second antenna element with a protruding housing force has both the 900 MHz band and the 2 GHz band. Since the radiation resistance is high in the frequency band, it is possible to suppress degradation of antenna efficiency.
  • the conductive frame attached to the upper case and the conductive hinge portion electrically connected to the conductive frame are used as the first antenna element, and With the helical antenna element that also protrudes the case force as the second antenna element, corresponding to the 90 OMHz band and 2 GHz band, respectively, and by distributing power to the first antenna element and the second antenna element, When the first antenna element can obtain a high antenna gain and the housing is closed, the second antenna element can obtain a high antenna gain, so that the housing can be opened and closed or closed. Multiple frequency bands! High antenna performance can be secured and a simple configuration can be achieved. Thus, downsizing and low cost can be realized.
  • the first antenna element is described as an internal antenna using a conductive frame of the housing, and the second antenna element is described as a protruding antenna.
  • the type of antenna is not limited to this, and may be, for example, a telescopic antenna or other internal antenna.
  • the force described for the case where the first antenna element is disposed in the upper case 9 and the second antenna element is disposed in the vicinity of the hinge portion 2 of the lower case 10 may be arranged at the lower end of the lower case 10 that is generally near the transmitter.
  • the case where the first antenna element is composed of the conductive frame 1 and the conductive hinge portion 2 has been described.
  • these are molded resin products that are insulators.
  • power may be supplied to the conductor plate in the upper case 9 using a power supply line.
  • the conductive plate in the upper case 9 is a conductive frame that holds a circuit board wiring pattern, a shield case, and a main display portion.
  • the force and connection method described for the case where the first power supply terminal 3 and the second power supply terminal 15 are electrically connected by the wiring pattern on the circuit board 4 are not limited thereto.
  • another feed terminal 19 is used as the feed terminal of the second antenna element, and the first feed terminal 3 and the second feed terminal 19 are partially overlapped with each other.
  • the first power supply terminal 3 and the second power supply terminal 19 may be electrically connected by attaching the second power supply terminal 19 to the lower case 10 with the mounting screw 13.
  • the number of parts can be reduced by integrally molding the first feeding terminal 3 and the second feeding terminal 19.
  • power may be distributed to the first antenna element and the second antenna element using a power divider or directional coupler that operates in a desired frequency band. Good.
  • FIGS. 10 to 12 show the folding portable wireless device according to Embodiment 2 of the present invention in an opened state.
  • Figure 10 is a rear view of a foldable portable radio
  • Figure 11 is a foldable
  • FIG. 12 is a side view of the portable cellular phone
  • FIG. 12 is a perspective view of the folding portable radio.
  • FIGS. 10 to 12 are different from FIGS. 5 to 7 in that a monopole antenna element 16 is used as the second antenna element instead of the helical antenna element 14.
  • the monopole antenna element 16 has a shape that forms four sides of a rectangle, and has a notch on one side. And it is arranged in the vicinity of the hinge fitting 8 so that its long side is parallel to the width direction (Y-axis direction) of the casing and its short side is parallel to the longitudinal direction (Z-axis direction) of the casing. . Further, the second feeding terminal 15 is connected to one apex portion of the monopole antenna element 16.
  • the apex partial force which is the connection point with the second feeding terminal 15 also has a main element portion 16a having a length to one end of about a quarter wavelength (about 83 mm in free space) in the 900 MHz band
  • Monopole antenna element 16 is formed with sub-element part 16b with a quarter-wavelength (about 38 mm in free space) in the 2 GHz band from the top to one end, which is the connection point with feed terminal 15 is doing.
  • the main part of both the main element part 16a and the sub element part 16b is parallel to the width direction (Y-axis direction) of the casing.
  • the wavelength of the main element portion 16a and the sub element portion 16b is shortened by being attached to a resin case constituting the lower case 10, for example.
  • the power supplied from the radio circuit 12 via the matching circuit 11 is distributed to the first antenna element and the second antenna element.
  • both the first antenna element and the second antenna element contribute to the radiation.
  • both frequencies in the 900 MHz band and the 2 GHz band are used.
  • a high antenna gain can be obtained in the band.
  • the first antenna element with the housing closed has a low radiation resistance in the 900 MHz band
  • the second antenna element has a high radiation resistance in both the 900 MHz band and the 2 GHz band. Therefore, deterioration of antenna efficiency can be suppressed.
  • Figure 14 shows the user holding the foldable portable radio in the right hand and placing it on the right ear Indicates.
  • the angle ex between the longitudinal direction (Z-axis direction) of a foldable portable wireless device and the ground is about 30 °.
  • the sub-element part 16b for the 2 GHz band that forms the long side portion of the rectangular monopole antenna element 16 is parallel to the width direction (Y-axis direction) of the housing.
  • the main polarization of the second antenna element is parallel to the width direction (Y-axis direction). For this reason, the gain of the vertical polarization component with respect to the ground is improved in the call state shown in FIG.
  • the general cross-polarization power ratio in the multi-wave environment of land mobile communications is 4-9dB, and it is known that the power of vertical polarization of incoming waves is 4-9dB higher than the power of horizontal polarization Yes.
  • the first antenna element and the second antenna having different main polarizations
  • the polarization plane matching loss in communication with the base station can be reduced, so that high antenna performance can be ensured, and the main polarization is the width of the folding portable radio.
  • the folding portable wireless device can be tilted and used in a call state, so that the gain of vertical polarization component is improved and high V antenna performance is ensured. Can do.
  • monopole antenna element 16 is rectangular and has a shape having a notch on one side, and the long side is the width direction of the casing (Y-axis direction). Even if the short side is parallel to the longitudinal direction (Z-axis direction) of the housing, the main parts of the main element section 16a and sub-element section 16b are in the width direction (Y-axis direction) of the casing. If parallel, the same effect can be obtained
  • FIGS. 15 to 17 show the folding portable wireless device according to Embodiment 3 of the present invention in an opened state.
  • 15 is a rear view of the foldable portable radio device
  • FIG. 16 is a side view of the foldable portable radio device
  • FIG. 17 is a perspective view of the foldable portable radio device.
  • FIGS. 15 to 17 are different from FIGS. 5 to 7 in that a trap circuit 17 is inserted between the matching circuit 11, the first power supply terminal 3, and the second power supply terminal 15. Through the matching circuit 11 (2) The power supply terminal 15 is fed.
  • the trap circuit 17 is a series or parallel resonance circuit of an inductive impedance element and a capacitive impedance element.
  • the trap circuit 17 is configured to block a 900 MHz band signal by a series resonance circuit of a coil and a capacitor shown in FIG. 18A. Is set to!
  • the power supplied from the radio circuit 12 via the matching circuit 11 is distributed to the first antenna element and the second antenna element in the 2 GHz band.
  • both the first antenna element and the second antenna element contribute to radiation, and in particular, since the radiation resistance of the first antenna element is high, a high antenna gain is obtained. be able to.
  • the second antenna element in the 900 MHz band, only the second antenna element is excited by the trap circuit 17, and only the second antenna element contributes to radiation regardless of opening and closing of the housing.
  • the second antenna element and the conductive material in the upper case 9 are combined to increase the effective volume of the antenna, so that a high antenna gain can be obtained, and when the housing is closed, Since radiation resistance is high, high antenna efficiency can be obtained.
  • the trap that cuts off the signal in the frequency band to the feed line of the antenna element in which the antenna efficiency deteriorates in the predetermined frequency band when the housing is closed By providing a circuit, radiation from an antenna element whose antenna efficiency deteriorates in the frequency band is not performed in a state where the housing is closed, so that power can be used effectively.
  • a trap circuit 17 as shown in Fig. 18A, a case where a series resonance circuit of a coil and a capacitor that blocks a 900 MHz band signal is used has been described. As shown, a 2 GHz band signal can be set to pass using a parallel resonance circuit of a coil and a capacitor! /.
  • a trap circuit that cuts off or passes power supply to the first antenna element in a predetermined frequency band is used, but the types of the first antenna element and the second antenna element If the arrangement is different, supply power to the second antenna element.
  • a trap circuit that cuts off or passes in a certain frequency band is used to ensure high antenna performance in both the open and closed states for multiple frequency bands. Make up.
  • a first aspect of the present invention is a first housing, a first antenna element that is provided in the first housing and uses a plurality of frequency bands as operating frequency bands, and feeds power to the first antenna element.
  • a first power feeding unit, a second housing, a second antenna element that is provided in the second housing and uses a plurality of frequency bands as a use frequency band, and a second power feeding unit that feeds power to the second antenna element A hinge portion that rotatably connects the first housing and the second housing, a circuit board provided in the second housing, having a ground pattern, and disposed on the circuit board.
  • a foldable portable wireless device that distributes power from the wireless circuit to the first power feeding unit and the second power feeding unit.
  • the first antenna element can obtain a high antenna gain when the casing is opened, and the second antenna element can obtain a high antenna gain when the casing is closed. Therefore, it is possible to ensure high antenna performance over a plurality of frequency bands, both in an open state and in a closed state, and a simple configuration.
  • the hinge portion includes a first hinge portion and a second hinge portion made of a conductive metal, the first hinge portion, and the second hinge.
  • the hinge portion is electrically connected to the hinge portion, and has a connecting portion that is rotatably supported.
  • the first hinge portion is provided in the first casing, and the hinge portion of the first antenna element is provided.
  • the second hinge portion is provided in the second housing, is disposed at a predetermined interval from a ground pattern on the circuit board, and is connected to the second end portion.
  • 1 is a foldable portable radio device that is electrically connected to a power feeding unit, and wherein the first antenna element, the hinge unit, and a ground pattern on the circuit board operate as a dipole antenna.
  • the first antenna element and the hinge portion and the ground pattern on the circuit board operate as a dipole antenna in a state where the housing is opened, thereby ensuring high antenna performance. Can do.
  • the second antenna element is the hinge. It is a foldable portable wireless device provided in the vicinity of the unit.
  • a foldable portable radio device having different main polarization directions of the first antenna element and the second antenna element in the configuration described above.
  • a fifth aspect of the present invention is a foldable portable radio having the above-described configuration, wherein the second antenna element has a main polarization direction parallel to a width direction of the casing.
  • the gain of the vertical polarization component can be improved by the main polarization parallel to the width direction of the housing. it can.
  • a foldable portable radio having a trap circuit that cuts off or passes power to the first antenna element or the second antenna element in a predetermined frequency band in the above configuration. Machine.
  • the foldable portable wireless device according to the present invention has a simple configuration and can achieve high antenna performance in both a closed state and a closed state in a plurality of frequency bands in a plurality of frequency bands. It is useful as a foldable portable wireless device having a mechanism that can be opened and closed by connecting the upper housing and the lower housing with a hinge portion.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Support Of Aerials (AREA)
  • Telephone Set Structure (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

Appareil radio portable pliable ayant une performance d’antenne élevée dans différentes bandes de fréquences, à la fois dans un état dans lequel un boîtier est ouvert et dans un état dans lequel le boîtier est fermé et permettant d’obtenir un dispositif de taille réduite à un prix moindre. Dans l’appareil radio, une enveloppe supérieure (9) et une enveloppe inférieure (10) sont reliées par une section de charnière (2) et les enveloppes sont pivotées autour de la section de charnière (2). Un cadre conducteur (1) est attaché à l’enveloppe supérieure (9), une carte de circuit (4) placée dans l’enveloppe inférieure (10) a un circuit radio (12) et un schéma de masse est formé sur la carte de circuit (4). La section de charnière (2) a une fixation métallique à charnière (5) reliée au cadre conducteur (1), une fixation métallique à charnière (8) reliée via une première borne d’alimentation (3) à un schéma de câblage sur la carte de circuit (4) et un arbre rotatif (7) pour supporter de façon rotative les fixations métalliques. Un dispositif d’antenne hélicoïdal (14) fixé à proximité de la section de charnière (2) est relié au schéma de câblage situé sur la carte de circuit (4) via une deuxième borne d’alimentation (15). L’électricité est amenée à la première borne d’alimentation (3) et à la deuxième borne d’alimentation (15) depuis le circuit radio (12).
PCT/JP2005/015439 2004-08-25 2005-08-25 Appareil radio portable pliable WO2006022331A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2004-245876 2004-08-25
JP2004245876A JP2006067133A (ja) 2004-08-25 2004-08-25 折り畳み式携帯無線機

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WO2006022331A1 true WO2006022331A1 (fr) 2006-03-02

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WO (1) WO2006022331A1 (fr)

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JP4712912B2 (ja) * 2008-06-19 2011-06-29 シャープ株式会社 無線装置
CN101453050B (zh) * 2007-12-07 2012-06-27 英业达股份有限公司 具天线接地结构的电子装置
CN102549843A (zh) * 2009-09-17 2012-07-04 日本电气株式会社 天线、无线通信装置和构造天线的方法
US8232926B2 (en) 2008-01-15 2012-07-31 Panasonic Corporation Mobile wireless device
US8493270B2 (en) 2008-06-19 2013-07-23 Sharp Kabushiki Kaisha Wireless device

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EP2023437A4 (fr) * 2006-05-30 2009-12-09 Panasonic Corp Unite sans fil portable
JP4962281B2 (ja) * 2007-11-19 2012-06-27 パナソニック株式会社 アンテナ装置およびそれを用いた携帯端末
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