WO2006011254A1 - Folding portable wireless apparatus - Google Patents

Folding portable wireless apparatus Download PDF

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Publication number
WO2006011254A1
WO2006011254A1 PCT/JP2005/001115 JP2005001115W WO2006011254A1 WO 2006011254 A1 WO2006011254 A1 WO 2006011254A1 JP 2005001115 W JP2005001115 W JP 2005001115W WO 2006011254 A1 WO2006011254 A1 WO 2006011254A1
Authority
WO
WIPO (PCT)
Prior art keywords
parasitic
parasitic element
antenna element
wireless device
portable wireless
Prior art date
Application number
PCT/JP2005/001115
Other languages
French (fr)
Japanese (ja)
Inventor
Hiroyuki Uejima
Yutaka Saito
Kenichi Maeda
Naoki Matsubara
Junichi 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
Priority claimed from JP2004215582A external-priority patent/JP2006041689A/en
Priority claimed from JP2004303346A external-priority patent/JP2006115419A/en
Application filed by Matsushita Electric Industrial Co., Ltd. filed Critical Matsushita Electric Industrial Co., Ltd.
Publication of WO2006011254A1 publication Critical patent/WO2006011254A1/en

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Classifications

    • 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
    • H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
    • H01Q19/22—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of a single substantially straight conductive element

Definitions

  • the longitudinal direction of the folding portable wireless device that is, the angle ⁇ between the Z-axis direction and the ground is about 30 °.
  • the cross-polarization power ratio of 4.9 is 9 dB, and it is known that the vertical polarization power of the incoming wave is 4-19 dB higher than the horizontal polarization power. This indicates that higher communication quality can be ensured when the main polarization of the antenna of the folding portable wireless device in the above-described call state is perpendicular to the ground.
  • the present invention provides:
  • the one or more parasitic elements are placed in the camera module portion of the upper casing close to the first parasitic element.
  • a configuration is adopted in which the second parasitic element is arranged.
  • the first parasitic element is electromagnetically coupled to the antenna element by simply opening the foldable portable radio device for a call, so that the first parasitic element and the second parasitic element are coupled. Since the elements are capacitively coupled, the current is distributed to the first parasitic element and the second parasitic element that are separated from the human head or hand.
  • the one or more passive elements are conductive plates of the upper housing close to the first passive element.
  • the one or more parasitic elements are connected to the second parasitic element of the upper casing adjacent to the first parasitic element.
  • the power feeding element and the conductor plate are employed.
  • the first parasitic element is disposed on a surface of the resin cover that constitutes the upper casing, the surface being close to the antenna element.
  • Adopt a configuration to arrange.
  • the present invention provides that the first parasitic element is electromagnetically coupled to the antenna element by simply opening the foldable portable radio device for a call, and one or more first parasitic elements are coupled to the antenna element. Since these parasitic elements are capacitively coupled, the current is distributed to the first parasitic element and one or more parasitic elements that are separated from the human head or hand. Therefore, it is possible to realize a wide-band low SAR characteristic without degrading the call gain in a call state, and to ensure high antenna performance.
  • FIG. 4 A diagram showing a radiation pattern of the antenna element provided in the folding portable radio shown in FIG.
  • FIG. 6 is a perspective view for explaining a configuration of a parasitic element provided in a folding portable wireless device according to a second embodiment of the present invention.
  • FIG. 7 is a perspective view for explaining the configuration of a parasitic element provided in a folding portable wireless device according to a third embodiment of the present invention.
  • FIG. 8 (a) is a rear view of the folding portable radio device according to the fourth embodiment of the present invention
  • FIG. 8 (b) is a folding portable phone according to the fourth embodiment of the present invention. It is a side view of a radio.
  • Fig. 9 is a rear view of the folding portable radio device according to the fifth embodiment of the present invention
  • Fig. 9 (b) is a folding portable phone according to the fifth embodiment of the present invention. It is a side view of a radio.
  • Fig. 10 is a rear view of the folding portable radio device according to the sixth embodiment of the present invention
  • Fig. 10 (b) is a folding portable phone according to the sixth embodiment of the present invention. It is a side view of a radio.
  • FIG. 11 (a) is a rear view of the folding portable wireless device according to the seventh embodiment of the present invention
  • FIG. 11 (b) is a folding portable wireless device according to the seventh embodiment of the present invention. It is a side view of the machine.
  • FIG. 12 (a) is a diagram showing a modification of the parasitic element of the folding portable wireless device according to the fourth embodiment of the present invention
  • FIG. 12 (b) is the fourth embodiment of the present invention
  • FIG. 12 (c) is a diagram showing another modified example of the parasitic element of the folding portable radio in the embodiment
  • FIG.12 (c) shows the parasitic element of the folding portable radio in the fourth embodiment of the present invention
  • FIG. 12D is a diagram showing another modification
  • FIG. 12D is a diagram showing another modification of the parasitic element of the folding portable wireless device according to the fourth embodiment of the present invention.
  • FIG. 13 is a diagram showing characteristics in the fourth embodiment of the present invention.
  • FIG. 14 is a rear view for explaining an external configuration of a conventional folding portable wireless device in a deployed state.
  • FIG. 15 is a side view showing a configuration example such as an appearance of the folding portable wireless device shown in FIG. 14 in an unfolded state.
  • FIG. 16 is a diagram showing a radiation pattern of an antenna element provided in the folding portable wireless device shown in FIG.
  • FIG. 17 is a diagram for explaining how the foldable portable wireless device is used in a call state.
  • the gist of the present invention is that the user simply opens the upper housing and unfolds and listens to the earpiece when he / she talks without adding a special mechanism or requesting the user to perform extra operations. It is to obtain a foldable portable radio device having an antenna that exhibits a desired performance without being affected by a user's temporal region or the like when a normal operation is performed.
  • FIG. 1 and FIG. 2 are a rear view and a side view for explaining an outer appearance configuration and the like of the folding portable wireless device according to the first embodiment of the present invention in an unfolded state.
  • the lower end of the upper casing 100 and the upper end of the lower casing 101 are pivotally connected via a hinge 102, and the front sides of both casings are closed and folded. It can be opened and expanded again.
  • a hinge portion 102 projects from the front upper side, and the upper casing 100 is folded when the front side of the upper casing 100 and the front side of the lower casing 101 are closed and folded.
  • the front side of the lower casing 101 is closed and covered.
  • a transmitter 107 is disposed on the lower surface of the built-in circuit board 106, and a wireless unit 108 and a power supply unit 109 are disposed on the rear surface of the upper end.
  • One end of a helical antenna element 110 that protrudes from the upper end surface of the lower housing 101 is connected to the power feeding unit 109.
  • the helical antenna element 110 has an electrical length of approximately a quarter wavelength.
  • the linear parasitic element 111 made of a conductive thin film wire or the like and having an electrical length of approximately half wavelength is provided on the inner surface or outer surface of the resin case constituting the upper casing 100.
  • it is arranged in the vicinity of the hinge at the lower end on the back side of the upper casing 100, that is, on the surface close to the helical antenna element 110 on the rear side of the upper casing 100 when opened and deployed.
  • This parasitic element 111 is a force-case dielectric that becomes a linear conductor element having a full length of approximately half wavelength (75 mm in free space) and a width of, for example, 2 mm, assuming that the used radio frequency is 2 GHz, for example. Depending on the rate and proximity, the physical length will be shorter than 75mm. Since the width of the upper casing 100 is generally about 40 mm to 50 mm, the parasitic element 111 for 2 GHz is arranged in a U shape with a bent portion as shown in FIG. It is structured.
  • FIG. 3 is a perspective view for explaining the configuration and arrangement of the parasitic element 111 provided in the foldable portable wireless device shown in FIG. The configuration and arrangement of the parasitic element 111 will be specifically described along FIG. 3 with reference to FIG. 1 and FIG.
  • FIG. 3 instead of clearly showing the upper housing 100, a conductor plate 301 existing inside the upper housing 100 is extracted and illustrated for explaining the antenna operation.
  • the width of the conductor plate 301 is substantially equal to the width of the upper casing 100, but the conductor plate 301 and the parasitic element 111 are electrically isolated. That is, the parasitic element 111 is electrically insulated from the conductive material existing in the upper casing 100.
  • the parasitic element 111 supports the radio frequency used as described above and the width direction support of the upper casing 100.
  • the main element piece 11 lb corresponding to the width direction of the upper casing 100 and the main element piece 11 lb are bent in the same direction at both ends of the main element piece 11 lb.
  • the sub-element pieces 11 la and 111c are formed with substantially equal lengths.
  • the length of the main element piece 11 lb is substantially equal to the width of the upper housing 100, and the lengths of the sub element pieces 11 la and 111 c are about 1 Omm to 20 mm, respectively.
  • the parasitic element 111 has the main element piece 1 1 lb at its center. The position is matched with the center position in the width direction of the foldable portable radio (upper housing 100) so that it is almost parallel to the Y-axis direction, and the sub-element pieces 111a, 111c are arranged almost parallel to the Z-axis direction. .
  • the sub-element piece 111a is arranged on one end side in the Y-axis direction
  • the sub-element piece 111c is arranged on the other end side in the Y-axis direction.
  • the helical antenna element 110 arranged on one end side in the width direction of the lower housing 101 is a spirally wound conductor, and the axial force of this spiral is in the axial direction.
  • the sub-element piece 11 la is arranged almost in parallel with the axial direction of the helical antenna element 110.
  • the sub-element piece 11 la is disposed at a position close to the helical antenna element 110, so that the interval at that time is set to about 2 mm, for example.
  • the electromagnetic coupling between them is realized.
  • the sub-element piece 111c disposed on the other end side in the Y-axis direction is an open end.
  • the foldable portable wireless device including the parasitic element 111 configured and arranged as described above will be described.
  • the parasitic element The electromagnetic coupling between the child 111 and the helical antenna element 110 is increased. Further, the direction of the current flowing through the helical antenna element 110 is the axial direction of the helical antenna element 110, that is, the Z-axis direction in consideration of the far-field radiation characteristics. The electromagnetic coupling increases as the axis becomes parallel.
  • the peak position of the current in the parasitic element 111 is the central position of the parasitic element 111, that is, the central position of the main element piece 111b. Exists. Therefore, the main element piece 111b contributes most to radiation. When the foldable portable radio is closed, the parasitic element 111 is separated from the helical antenna element 110, and thus does not contribute to radiation.
  • FIG. 4 is a diagram showing a radiation pattern of an antenna element provided in the folding portable radio shown in FIG. 1 by providing the parasitic element acting as described above.
  • FIG. 4 as in FIG. 16, the E ⁇ component 401 and the ⁇ component 402 on the XZ plane in the orthogonal coordinates XYZ are shown.
  • ⁇ ⁇ component 402 force S is small in general, and ⁇ ⁇ component 401 is generally large, especially ⁇ ⁇ component 401 in the ⁇ direction is about 4dB higher.
  • the improvement of the ⁇ component 401 in the Z direction means that the vertical polarization component with respect to the ground is improved in the conversation state in the usage mode shown in FIG. 17, so that high antenna performance can be obtained.
  • the antenna performance can be improved by providing the parasitic element 111 that is electromagnetically coupled to the helical antenna element 110.
  • the main element piece 11 lb substantially parallel to the width direction of the upper housing 100 improves the ⁇ component in the Z-axis direction, so that higher antenna performance can be ensured in a talking state.
  • both U-shaped corners may be smoothly curved.
  • the sub-element pieces arranged on both ends of the long main element piece may be in the form of a meander.
  • the length of the sub-element piece that electromagnetically couples with the helical antenna element was increased and bent halfway along the Y-axis. It may be a form.
  • the ring-shaped metallic decorative part is used as the center position of the long main element piece, and the width of the narrow element
  • the antenna element is not limited to the helical antenna element 110.
  • a meander antenna element or a telescopic rod antenna element may be used.
  • the linear parasitic element that can be electromagnetically coupled to the antenna element provided in the lower casing is disposed on the upper section. Since it is provided in the housing, the antenna performance can be improved in a call state.
  • the parasitic element includes a main element piece arranged along the short side direction (width direction) of the upper casing, and the center position thereof coincides with the central position of the upper casing in the short side direction.
  • FIG. 6 is a perspective view for explaining the configuration of a parasitic element provided in the folding portable wireless device according to the second embodiment of the present invention.
  • the same or equivalent components as those shown in FIG. 3 are denoted by the same reference numerals.
  • the description will focus on the parts related to the second embodiment.
  • the parasitic element 600 included in the folding portable wireless device according to the second embodiment is composed of a conductive thin film wire or the like and has an electrical length of approximately half a wavelength,
  • 3 is the same as the parasitic element 111 shown in FIG. 3 except that the configuration is different from that of the parasitic element 111 shown in FIG.
  • the parasitic element 600 included in the folding portable wireless device according to the second embodiment is Arranged in a straight line along the longitudinal direction (z-axis direction) of the partial housing 100.
  • the radio frequency used is 2 GHz, for example, a linear conductor element having a total length of approximately half wavelength (75 mm in free space) and a width of 2 mm, for example.
  • the end of the parasitic element 600 on the hinge side is disposed at a position close to the helical antenna element 110.
  • the distance at that time is about 2 mm. This is the same as in the first embodiment in that the electromagnetic coupling between the two is realized.
  • the helical antenna element 110 when the helical antenna element 110 is excited from the feeding portion 109 in the state where the upper casing 100 is opened and unfolded, the helical antenna element 110 and the lower end portion of the parasitic element 600 are electromagnetically coupled to each other. Since the antenna current is excited and concentrated on the parasitic element 600 located away from the temporal region and the hand, as in the first embodiment, the helical antenna 110 and the conductor plate in the upper housing 100 are Electromagnetic coupling between 301 and an electronic component in the upper casing 100 and a flexible printed circuit board that connects the electronic components in the lower casing 101 is suppressed. That is, high antenna performance can be ensured in a call state.
  • the linear parasitic element that can be electromagnetically coupled to the antenna element provided in the lower casing is disposed on the upper section. Since it is provided in the case, high antenna performance can be secured.
  • FIG. 7 is a perspective view for explaining the configuration of a parasitic element included in the folding portable wireless device according to the third embodiment of the present invention.
  • components that are the same as or equivalent to the components shown in FIG. 3 are given the same reference numerals.
  • the description will focus on the parts related to the third embodiment.
  • the parasitic element 700 included in the folding portable wireless device according to the third embodiment is composed of a conductive thin film wire or the like and has an electrical length of approximately half wavelength,
  • the parasitic element 111 shown in FIG. 3 it is arranged near the hinge part at the lower end on the back side, that is, on the surface close to the helical antenna element 110 on the back side of the upper housing 100.
  • the force form is different from the parasitic element 111 shown in FIG.
  • the parasitic element 700 included in the folding portable wireless device according to the third embodiment is formed in a substantially L shape.
  • the sub-element piece 700a along the longitudinal direction (Z-axis direction) of the upper housing 100 on one end side where the helical antenna element 110 is arranged in the width direction (Y-axis direction) of the upper housing 100, and this
  • the main element piece 700b is also bent along the width direction (Y-axis direction) of the upper housing 100 by bending the front end force in the longitudinal direction of the sub element piece 700a.
  • the center position of the main element piece 700b matches the center position of the upper casing 100 in the width direction (Y-axis direction).
  • parasitic element 700 provided in the folding portable wireless device according to the third embodiment, assuming that the used radio frequency is, for example, 2 GHz, the total length is approximately half a wavelength (75 mm in free space). ), A linear conductor element having a width of 2 mm, for example.
  • the sub-element piece 700a of the parasitic element 700 is disposed at a position close to the helical antenna element 110, and the spacing at that time is, for example, about 2 mm. It is the same as in the first embodiment in that it is set and electromagnetic coupling is realized between the two.
  • the helical antenna element 110 when the helical antenna element 110 is excited from the feeding portion 109 in a state where the upper casing 100 is opened and deployed, the helical antenna element 110 and the sub-element piece 700a of the parasitic element 700 are electromagnetically coupled. Since the antenna current is excited and concentrated on the parasitic element 700 located away from the human head and the hand, as in the first embodiment, the helical antenna element 110 and the upper housing 100 Electromagnetic coupling between the conductive plate 301 and the flexible printed circuit board connecting the electronic components in the upper housing 100 and the electronic components in the lower housing 101 is suppressed. That is, high antenna performance can be ensured in a call state.
  • the linear parasitic element that can be electromagnetically coupled to the antenna element provided in the lower housing when the upper housing is opened and expanded is provided on the upper portion. Since it is provided in the housing, the antenna performance can be improved in a call state.
  • the parasitic element includes a main element piece arranged along the short side direction (width direction) of the upper housing, In addition, since the center position is made coincident with the center position in the short direction of the upper housing, the vertical polarization component with respect to the ground can be improved in a call state, and higher antenna performance can be secured.
  • the operation frequency of the antenna is assumed to be 2 GHz.
  • FIG. 8 shows an open state of the folding portable wireless device according to the fourth embodiment of the present invention.
  • Fig. 8 (a) is a rear view and Fig. 8 (b) is a side view.
  • FIG. 8 the same components as those of the conventional folding portable wireless device 1 shown in FIG. 14 described above are denoted by the same reference numerals and description thereof is omitted.
  • reference numeral 1 denotes a first parasitic element provided in the vicinity of the hinge portion in the upper housing 10.
  • the first parasitic element 1 is a linear conductor element having an overall length of approximately half wavelength (75 mm in free space) and a width of, for example, 3 mm, and is formed of a conductive thin film wire or the like. Attached to the inner or outer surface of the plastic case on the secondary display 15
  • the first parasitic element 1 is configured on a surface of the upper housing 10 that is close to the helical antenna element 19.
  • the physical length will be shorter than 75 mm due to the dielectric constant of the case and proximity.
  • Reference numeral 2 denotes one or more parasitic elements adjacent to the first parasitic element in the upper casing 10, and the total length may not be substantially half a wavelength. Also, one or more parasitic elements 2 can be close to each other or not.
  • the first parasitic element 1 and the one or more parasitic elements 2 are electrically connected to the conductor plate 4, the receiver 13, the main display 14, the sub display 15 and the like of the upper housing 10. Is electrically insulated. That is, the first parasitic element 1 and the one or more parasitic elements 2 are electrically insulated from the conductive material present in the upper housing 10.
  • the helical antenna element 19 is arranged in parallel to the axial direction of the helical antenna element 19, that is, the Z direction, close to the electrical unit 20.
  • the helical antenna element 19 is formed by winding a conducting wire in a spiral shape, and the axial direction of this spiral and the first parasitic element 1 are arranged in parallel.
  • the distance between the helical antenna element 19 and the first parasitic element 1 is set to about 5 mm, for example.
  • the helical antenna element 19 and the first parasitic element 1 are electromagnetically coupled, and one or more parasitic elements 2 are arranged substantially in parallel with the first parasitic element, and the first parasitic element adjacent thereto is arranged.
  • Element 1 also achieves electromagnetic coupling with one or more parasitic elements 2.
  • this foldable portable radio is a foldable portable radio having a mechanism that can be opened and closed by connecting the upper casing 10 and the lower casing 11 with the hinge portion 12.
  • the helical antenna element 19 mounted in the vicinity of the hinge 12 of the lower housing 11 and the first parasitic element 1 having a substantially half-wave electrical length in the vicinity of the hinge 12 of the upper housing 10 1 And one or more parasitic elements 2 adjacent to the first parasitic element 1 in the upper housing 10.
  • one end of the first parasitic element 1 is arranged close to the helical antenna element 19 in a state in which the folding portable wireless device is opened, and the helical antenna element 19 or the meander antenna element is used as the antenna element.
  • the axial direction of the helical antenna element 19 or the meander antenna element and a part of the first parasitic element 1 are arranged substantially in parallel, and the first parasitic element 1 and one or more parasitic elements 2 Are arranged substantially parallel to each other, and the first parasitic element 1 and one or more parasitic elements 2 are arranged on a surface of the resin cover constituting the upper housing 10 close to the helical antenna element 19.
  • antenna current is excited in the first parasitic element 1 and one or more parasitic elements 2 away from the human head or hand, and the helical antenna element 19 and the upper casing 10 are excited. It suppresses electromagnetic coupling between the metal display unit holder 4 as the inner conductive plate and the flexible printed circuit board connecting the electronic components in the upper housing 10 and the electronic components in the lower housing 11.
  • one or more parasitic elements 2 are arranged close to the first parasitic element 1 as compared with the case of only the first parasitic element 1.
  • the first parasitic element 1 and one or more parasitic elements 2 are capacitively coupled, a wide-band low SAR characteristic can be realized.
  • the electromagnetic coupling between the first parasitic element 1 and the helical antenna element 19 increases as the distance between the first parasitic element 1 and the helical antenna element 19 decreases. Also, considering the far-field radiation characteristics, the direction of the current flowing through the helical antenna element 19 is the axial direction of the helical antenna element 19, that is, the Z direction, so that the first parasitic element 1 becomes parallel to the Z direction. The electromagnetic coupling increases as the first parasitic element 1 and the one or more parasitic elements 2 become substantially parallel. When the folding portable radio is closed, the first parasitic element 1 is separated from the helical antenna element 19 and does not contribute to radiation.
  • Fig. 12 is a diagram showing a modification example of the shape of the first parasitic element 1 and one or more parasitic elements 2, and is not limited to the linear strip described in the above embodiment.
  • the curved shape shown in FIG. 12 (a), the crank shape shown in FIG. 12 (b), the rectangular shape shown in FIG. 12 (c), and the meander shape shown in FIG. 12 (d) may be used.
  • the antenna element is not limited to the helical antenna element 19, but may be, for example, an expansion-contraction rod-shaped antenna element.
  • Fig. 9 (a) is a rear view and Fig. 9 (b) is a side view.
  • FIG. 9 the same components as those of the folding portable wireless device according to the fourth embodiment are denoted by the same reference numerals, and description thereof is omitted.
  • reference numeral 21 denotes a camera module arranged in the upper housing 10, and the second parasitic element 3 is arranged on the helical antenna element 19 side of the camera module 21.
  • the feed element 3 is a conductor element of about 20 mm ⁇ 10 mm, for example, and is disposed so as to be close to the first parasitic element 1 and the vicinity of the helical antenna element 19, and Affix to the inner or outer surface of the resin case.
  • the second parasitic element 3 has a hollow lens part of the camera module 21 and a good shape.
  • the foldable portable wireless device includes the antenna element 19 mounted in the vicinity of the hinge portion 12 of the lower housing 11 and the hinge of the upper housing 10.
  • a first parasitic element 1 having an electrical length of approximately half wavelength is provided in the vicinity of the portion 12, and a second parasitic element 3 in the vicinity of the camera module 21 adjacent to the first parasitic element 1.
  • one end of the first parasitic element 1 is arranged close to the helical antenna element 19 in a state in which the folding portable wireless device is opened, and the helical antenna element 19 and the first parasitic element are arranged. 1 is electromagnetically coupled, and the first parasitic element 1 and the second parasitic element 3 are capacitively coupled.
  • the current is distributed to the first parasitic element 1 and the second parasitic element 3 away from the human head or hand, so that the call gain is not degraded and the local human body is not affected.
  • the specific absorption rate (SAR) of absorbed electromagnetic waves is kept low. Therefore, wide-band low SAR characteristics can be realized, and high antenna performance can be secured in a call state.
  • reference numeral 4 denotes a conductor plate, for example, a metal holder for holding the main display unit 14 and the sub display device 15, for example, a metal plate of about 50 mm ⁇ 40 mm, and has a high conductivity. It is a lightweight and high strength metal, such as a magnesium alloy. Place it close to the feed element 1.
  • the conductor plate 4 is composed of a circuit board or the like of the upper housing 10 and is disposed close to the first parasitic element 1.
  • the present invention is a foldable portable wireless device having a mechanism that is openable and closable by connecting the upper housing 10 and the lower housing 11 with the hinge portion 12, and the hinge of the lower housing 11.
  • the helical antenna element 19 mounted in the vicinity of the section 12, the first parasitic element 1 having an electrical length of approximately half wavelength near the hinge section 12 of the upper casing 10, and the conductor plate 4 of the upper casing 10.
  • one end of the first parasitic element 1 is disposed close to the helical antenna element 19 in the state in which the foldable portable wireless device is opened, and one end of the conductor plate 4 is connected to the first parasitic element.
  • the helical antenna element 19 and the first parasitic element 1 are electromagnetically coupled, and the first parasitic element 1 and the conductor plate 4 are capacitively coupled.
  • the first parasitic element 1 and the conductor plate 4 are capacitively coupled, it is possible to realize a wide-band low SAR characteristic and to ensure high antenna performance in a call state.
  • Figure 11 shows the folding portable radio in the open state.
  • FIG. 11 the same components as those of the folding portable wireless device according to the fourth embodiment to the sixth embodiment are denoted by the same reference numerals, and description thereof is omitted.
  • reference numeral 3 is a second parasitic element arranged on the helical antenna element 19 side of the camera module 21, and 4 is a conductor plate, which includes, for example, the main display unit 14 and the sub display device 15. It is a metal holder for holding, and is arranged close to the second parasitic element 3 and the first parasitic element 1.
  • the present invention is a foldable portable wireless device having a mechanism that is openable and closable by connecting the upper housing 10 and the lower housing 11 with the hinge portion 12, and the hinge of the lower housing 11.
  • the helical antenna element 19 mounted in the vicinity of the part 12 and the substantially half-wavelength in the vicinity of the hinge part 12 of the upper housing 10
  • a first parasitic element 3 having an electrical length
  • a second parasitic element 3 near the camera module 21 adjacent to the first parasitic element 3
  • one end of the first parasitic element 1 is arranged close to the helical antenna element 19, and one end of the conductor plate 4 is connected to the first parasitic element.
  • the helical antenna element 19 and the first parasitic element 3 are electromagnetically coupled, and the first parasitic element 1, the second parasitic element 3 and the conductor plate 4 are connected. Capacitive coupling.
  • the helical antenna element 19 and the first parasitic element 1 are electromagnetically coupled, and the first parasitic element 1 and the second parasitic element 3 and the conductor plate 4 are capacitively coupled, so that current is distributed to the first parasitic element 1, the second parasitic element 3, and the conductor plate 4, which are separated from the human head or hand.
  • the specific absorption rate (SAR) of electromagnetic waves absorbed by the local human body without deterioration of the call gain can be kept low.
  • wide-band low SAR characteristics can be realized, and high communication and antenna performance can be ensured in a call state.
  • the present invention is suitable as an antenna for a foldable portable radio device that exhibits desired performance without being affected by the user's temporal region or the like.
  • the first parasitic element and the antenna element are electromagnetically coupled simply by opening the folding portable radio device for a call, and the first parasitic element and one or more The parasitic elements are capacitively coupled to each other, and current is distributed to the first parasitic element and one or more parasitic elements that are separated from the human head or hand.

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  • Computer Networks & Wireless Communication (AREA)
  • Telephone Set Structure (AREA)
  • Support Of Aerials (AREA)

Abstract

A folding portable wireless apparatus where a high antenna performance is achieved by simply opening and unfolding it for a call. In the folding portable wireless apparatus in which an upper case (100) and a lower case (101) are pivotally coupled at one end in the longitudinal direction of each of the cases through a hinge part (102) such that, for a call, it can be used in an opened and unfolded state. An antenna element (109) is provided at the end section on the hinge side in the longitudinal direction of the lower case (101). A linear parasitic element (111) is provided at the end section on the hinge section side in the longitudinal direction of the upper case (100). The parasitic element (111) has an electrical length substantially half a wavelength and is capable of electromagnetically coupling with the antenna element (109) when the apparatus is unfolded. As a result, a current flows in the parasitic element (111) concentrically.

Description

明 細 書  Specification
折畳式携帯無線機  Foldable portable radio
技術分野  Technical field
[0001] 本発明は、受話部を備えた上部筐体と、送話部を備えた下部筐体とをヒンジ部で回 動自在に連結することにより、上部筐体と下部筐体とが開閉自在な機構を有する折 畳式携帯無線機に関する。  [0001] The present invention opens and closes an upper case and a lower case by connecting an upper case having a receiver and a lower case having a transmitter to each other by a hinge part. The present invention relates to a folding portable radio device having a flexible mechanism.
背景技術  Background art
[0002] 折畳式携帯無線機は、上部筐体と下部筐体との片端をヒンジ部を介して回動自在 に連結し、待ち受け時では折り畳んだ状態で使用し、通話時では展開した状態で使 用できるように構成されている（例えば特許文献 1)。以下、この発明の理解を容易に するため図 14及び図 15を参照してその概要を説明する。図 14及び図 15は、従来の 折畳式携帯無線機の展開状態での外観構成等を説明する背面図及び側面図であ る。  [0002] A foldable portable wireless device is configured such that one end of an upper housing and a lower housing is rotatably connected via a hinge portion, and is used in a folded state during standby and unfolded during a call. (For example, Patent Document 1). In order to facilitate understanding of the present invention, an outline thereof will be described below with reference to FIGS. FIG. 14 and FIG. 15 are a rear view and a side view for explaining the external configuration and the like of the conventional folding portable wireless device in the unfolded state.
[0003] 図 14及び図 15に示すように、上部筐体 800の下端と下部筐体 801の上端とはヒン ジ部 802を介して回動自在に連結され、両筐体の正面側を閉じて折り畳み、また開 いて展開できるようになつている。上部筐体 800の正面側には、中央付近に主表示 部 803が配置され、上端側に受話部 804が配置されている。また上部筐体 800の背 面側には、中央付近に副表示部 805が配置されている。回路基板 811に接続されて いる。  As shown in FIG. 14 and FIG. 15, the lower end of the upper casing 800 and the upper end of the lower casing 801 are rotatably connected via a hinge 802, and the front sides of both casings are closed. It can be folded, opened and unfolded. On the front side of the upper casing 800, a main display unit 803 is disposed near the center, and a receiver unit 804 is disposed on the upper end side. On the back side of the upper housing 800, a sub display unit 805 is disposed near the center. Connected to circuit board 811.
[0004] 下部筐体 801では、正面上部側にヒンジ部 802が突出して設けられ、上部筐体 80 0の正面側と下部筐体 801の正面側とを閉じて折り畳んだときに上部筐体 800が下 部筐体 801の正面側を塞いで蓋をするようになっている。また、内蔵される回路基板 806の下端側表面には、送話部 807が配置され、上端側背面には無線部 808と給 電部 809とが配置されている。この給電部 809には、下部筐体 801の上部端面に突 出して設けられるヘリカルアンテナ素子 810の一端が接続されている。ヘリカルアン テナ素子 810は、略 4分の 1波長の電気長を有している。  [0004] In the lower casing 801, a hinge portion 802 projects from the front upper side, and the upper casing 800 is folded when the front side of the upper casing 800 and the front side of the lower casing 801 are closed and folded. Covers the front side of the lower housing 801 and covers it. In addition, a transmitter 807 is disposed on the lower end side surface of the circuit board 806 to be incorporated, and a radio unit 808 and a power supply unit 809 are disposed on the rear surface of the upper end side. One end of a helical antenna element 810 that protrudes from the upper end surface of the lower housing 801 is connected to the power feeding unit 809. Helical antenna element 810 has an electrical length of approximately a quarter wavelength.
[0005] 図 16は、ヘリカルアンテナ素子 810の放射パターンを示す図である。図 16では、 直交座標 XYZにおける XZ面での E φ成分 1001と E Θ成分 1002とが示されている。 図 16に示すように、 Ε φ成分 1001と Ε Θ成分 1002とは、 X軸方向でも Ζ軸方向でも ほぼ同等の大きさになっている。 FIG. 16 is a diagram showing a radiation pattern of the helical antenna element 810. In Figure 16, E φ component 1001 and E Θ component 1002 on XZ plane in Cartesian coordinates XYZ are shown. As shown in Fig. 16, Εφ component 1001 and ΕΘ component 1002 are almost the same size in both X-axis direction and Ζ-axis direction.
[0006] さて、以上のように構成される折畳式携帯無線機による通話は、例えば図 17に示 す態様で行われる。図 17は通話状態での折畳式携帯無線機の使用態様を説明す る図である。図 17では、使用者 1100が開いて展開した状態の折畳式携帯無線機の 下部筐体 801を右手 1101に持ち、上部筐体 800の上端側に在る受話部 804を右 耳に当てている状態が示されている。  [0006] Now, a call using a foldable portable radio device configured as described above is performed, for example, in the manner shown in FIG. FIG. 17 is a diagram for explaining how the foldable portable wireless device is used in a call state. In FIG. 17, the lower case 801 of the folding portable wireless device with the user 1100 opened and unfolded is held in the right hand 1101, and the earpiece 804 located on the upper end side of the upper case 800 is placed on the right ear. The state is shown.
[0007] この場合、一般には、折畳式携帯無線機の長手方向すなわち Ζ方向と地面との角 度ひは 30° 程度である。  [0007] In this case, generally, the angle between the longitudinal direction of the foldable portable wireless device, that is, the heel direction, and the ground is about 30 °.
[0008] 陸上移動通信の多重波環境における一般的な交差偏波電力比は 4dB— 9dBであ り、到来波の垂直偏波の電力が水平偏波の電力より 4dB— 9dB高いことが知られて いる。  [0008] It is known that the general cross-polarization power ratio in the multi-wave environment of land mobile communications is 4dB-9dB, and the vertical polarization power of the incoming wave is 4dB-9dB higher than the horizontal polarization power. ing.
[0009] これは、上述した通話状態における折畳式携帯無線機のアンテナの主偏波が地面 に対して垂直である方力 S、高い通信品質を確保できることを示している。  [0009] This indicates that the principal polarization of the antenna of the foldable portable radio device in the above-described call state is a direction force S that is perpendicular to the ground, and high communication quality can be ensured.
[0010] このように開いて展開した状態の折畳式携帯無線機では、上部筐体 800の背面が 下部筐体 801の上端面に突出して設けられるヘリカルアンテナ素子 810の近傍に位 置することになるので、ヘリカルアンテナ素子 810は、上部筐体 800内の金属製材料 や、上部筐体 800内の電子部品と下部筐体 801内の電子部品とを接続するフレキシ ブルプリント基板などと電磁結合するが、通話使用時では、これらに人体側頭部 110 2や手 1101が近接することによってアンテナ性能が劣化する。  [0010] In the foldable portable wireless device thus opened and deployed, the back surface of the upper housing 800 is positioned in the vicinity of the helical antenna element 810 provided to protrude from the upper end surface of the lower housing 801. Therefore, the helical antenna element 810 is electromagnetically coupled to the metal material in the upper housing 800, the flexible printed circuit board that connects the electronic components in the upper housing 800 and the electronic components in the lower housing 801, etc. However, when using a telephone, antenna performance deteriorates due to the proximity of the human head 1102 and hand 1101 to these.
[0011] そこで、従来からこのアンテナ性能が劣化する問題に対する解決策が種々提案さ れている（例えば特許文献 1一 4)。即ち、特許文献 1では、折畳式携帯無線機の開 閉動作に連動してアンテナ素子の角度を変更できる機構が開示されている。また、 特許文献 2では、着信時に着信ボタンの押下を検出してアンテナ素子の角度を本体 に対して傾斜させる構成が開示されている。  [0011] Therefore, various solutions for the problem that the antenna performance deteriorates have been proposed (for example, Patent Documents 14 and 14). That is, Patent Document 1 discloses a mechanism that can change the angle of an antenna element in conjunction with the opening and closing operation of a folding portable wireless device. Patent Document 2 discloses a configuration in which when an incoming call is received, pressing of an incoming call button is detected to incline the angle of the antenna element with respect to the main body.
[0012] また、特許文献 3では、筐体内に収容された棒状アンテナ素子を引き出して棒状ァ ンテナの先端を人体力 遠ざける構成が開示されている。また、特許文献 4では、筐 体背面に収容された略半波長の電気長の無給電素子を有する板状アンテナ部を引 き出す構成が開示されている。 [0012] Further, Patent Document 3 discloses a configuration in which a rod-shaped antenna element housed in a housing is pulled out to move the tip of the rod-shaped antenna away from human strength. In Patent Document 4, the housing A configuration is disclosed in which a plate-like antenna unit having a parasitic element having an electrical length of approximately half wavelength accommodated on the back of the body is drawn out.
特許文献 1 :特開 2003 - 87375号公報  Patent Document 1: JP 2003-87375 A
特許文献 2：特開 2001 - 308995号公報  Patent Document 2: JP 2001-308995 A
特許文献 3：特開 2001 - 57585号公報  Patent Document 3: Japanese Patent Laid-Open No. 2001-57585
特許文献 4 :特開 2001— 326513号公報  Patent Document 4: Japanese Patent Laid-Open No. 2001-326513
発明の開示  Disclosure of the invention
発明が解決しょうとする課題  Problems to be solved by the invention
[0013] し力しながら、特許文献 1および特許文献 2に開示されている技術では、通話状態 において高いアンテナ性能を確保するために、アンテナ素子の角度調整機構が新た に必要になるという問題がある。  However, the techniques disclosed in Patent Document 1 and Patent Document 2 require a new antenna element angle adjustment mechanism in order to ensure high antenna performance in a call state. is there.
[0014] また、特許文献 3および特許文献 4に開示されている技術では、通話状態において 高いアンテナ性能を確保するために、使用者自身による棒状アンテナや板状アンテ ナ部の引き出し操作が必要であるという問題がある。  [0014] Further, in the technologies disclosed in Patent Document 3 and Patent Document 4, in order to ensure high antenna performance in a call state, the user himself / herself needs to pull out the rod-shaped antenna and the plate-shaped antenna section. There is a problem that there is.
[0015] 要するに、折畳式携帯無線機では、特別な機構を追加することなぐまた使用者に 余計な操作を依頼することなぐ通話する場合に使用者が単に上部筐体を開いて展 開し受話部を耳に当てる通常の操作を行うだけで済むようにするには、使用者の側 頭部や手等の影響を受けずに所望の性能を有するアンテナの開発が望まれている。 この点について検討する。  [0015] In short, in a folding portable wireless device, when a call is made without adding a special mechanism or requesting an extra operation from the user, the user simply opens the upper housing and expands it. In order to perform only the normal operation of placing the receiver on the ear, it is desired to develop an antenna having a desired performance without being affected by the user's temporal region or hand. Consider this point.
[0016] 図 17に示す使用態様では、一般に、折畳式携帯無線機の長手方向、即ち、 Z軸方 向と地面との角度 αは 30° 程度であるが、陸上移動通信の多重波環境における一 般的な交差偏波電力比は 4一 9dBであり、到来波の垂直偏波の電力が水平偏波の 電力より 4一 9dB高いことが知られている。これは、上述した通話状態における折畳 式携帯無線機のアンテナの主偏波が地面に対して垂直である方が、高い通信品質 の確保ができることを示してレ、る。  In the usage mode shown in FIG. 17, generally, the longitudinal direction of the folding portable wireless device, that is, the angle α between the Z-axis direction and the ground is about 30 °. In general, the cross-polarization power ratio of 4.9 is 9 dB, and it is known that the vertical polarization power of the incoming wave is 4-19 dB higher than the horizontal polarization power. This indicates that higher communication quality can be ensured when the main polarization of the antenna of the folding portable wireless device in the above-described call state is perpendicular to the ground.
[0017] 即ち、図 16に示したように、従来のアンテナでは、 E φ成分 1001と E Θ成分 1002 とは、 X軸方向でも Z軸方向でもほぼ同等の大きさになっている力 \通話状態におい て地面に対する垂直偏波成分を向上させるためには、 Z軸方向の E φ成分が E Θ成 分よりも大きい放射パターンを持つアンテナの開発が必要である。 That is, as shown in FIG. 16, in the conventional antenna, the E φ component 1001 and the E Θ component 1002 have substantially the same magnitude in both the X-axis direction and the Z-axis direction. In order to improve the vertical polarization component with respect to the ground in the state, the Eφ component in the Z-axis direction is It is necessary to develop an antenna with a radiation pattern larger than 1 min.
[0018] 本発明は、力かる点に鑑みてなされたものであり、特別な機構を追加することなぐ また使用者に余計な操作を依頼することなぐ通話状態において使用者の側頭部等 の影響を受けずに高い性能を有するアンテナを備えた折畳式携帯無線機を提供す ること、及び通話する際に折畳式携帯無線機を開くだけで、通話状態において通話 利得が劣化することなぐ局所的な人体に吸収される電磁波の比吸収率である SAR ( Specific Absorption Rate)特性を、広帯域に低減させることができ、高いアンテナ性 能を有するアンテナを備えた折畳式携帯無線機を提供することを目的とする。  [0018] The present invention has been made in view of power, and it is not necessary to add a special mechanism or to request the user to perform an extra operation. Providing a foldable portable radio device with an antenna that has high performance without being affected, and simply opening the foldable portable radio device when making a call causes the call gain to deteriorate in a call state. A foldable portable radio equipped with an antenna with high antenna performance that can reduce the SAR (Specific Absorption Rate) characteristic, which is the specific absorption rate of electromagnetic waves absorbed by the local human body, over a wide band. The purpose is to provide.
課題を解決するための手段  Means for solving the problem
[0019] かかる課題を解決するため、本発明は、  In order to solve such a problem, the present invention provides:
(1)上部筐体及び下部筐体の長手方向一端をヒンジ部を介して回動自在に連結し、 通話時では開いて展開した状態で使用できるようにした折畳式携帯無線機において 、展開たときに前記下部筐体の長手方向の前記ヒンジ部側の端部に設けられるアン テナ素子と電磁結合が可能となる略半波長の電気長を有する線状の無給電素子を 前記上部筐体の長手方向の前記ヒンジ部側の端部に設けるという構成を採る。  (1) In a folding portable radio device in which one end in the longitudinal direction of the upper housing and the lower housing is pivotally connected via a hinge part so that it can be used in an open and deployed state during a call. A linear parasitic element having a substantially half-wave electrical length that can be electromagnetically coupled to an antenna element provided at an end of the lower casing in the longitudinal direction on the hinge section side. The structure of providing in the edge part of the said hinge part side of the longitudinal direction is taken.
[0020] この構成によれば、通話のために折畳式携帯無線機を開いて展開すると、人体側 頭部や手から離れた位置に在る無給電素子がアンテナ素子と電磁結合し、無給電 素子に電流が集中する。そのため、アンテナ素子と折畳式携帯無線機内の回路基 板などとの電磁結合が抑制されるので通話状態にぉレ、て高レ、アンテナ性能を確保 すること力 sできる。したがって、通話する場合に使用者は単に上部筐体を開いて展開 し受話部を耳に当てる通常の操作を行うだけで済む。  [0020] According to this configuration, when the foldable portable radio device is opened and deployed for a call, the parasitic element located at a position away from the human head or hand is electromagnetically coupled to the antenna element, Current concentrates on the feed element. As a result, the electromagnetic coupling between the antenna element and the circuit board in the foldable portable wireless device is suppressed, so that it is possible to ensure high communication performance and high antenna performance in a talking state. Therefore, when making a call, the user simply needs to perform the normal operation of opening and expanding the upper housing and placing the earpiece on the ear.
[0021] (2)本発明に係る折畳式携帯無線機は、上記の発明において、下部筐体に設けら れる前記アンテナ素子は、ヘリカルアンテナ素子またはミアンダアンテナ素子であり、 展開したときに、前記無給電素子は、その主要部の配置方向が前記へリカルアンテ ナ素子またはミアンダアンテナ素子の軸方向と略平行となるように配置されていると いう構成を採る。  (2) In the foldable portable wireless device according to the present invention, in the above invention, the antenna element provided in the lower housing is a helical antenna element or a meander antenna element. The parasitic element has a configuration in which the main part is arranged so that the arrangement direction of the main part thereof is substantially parallel to the axial direction of the helical antenna element or the meander antenna element.
[0022] この構成によれば、開いて展開したときに無給電素子とアンテナ素子との電磁結合 がより強くなるので、通話状態においてより高いアンテナ性能を確保することができる [0023] (3)本発明に係る折畳式携帯無線機は、上記の発明において、前記無給電素子 は、上部筐体の短手方向に沿って配置される主素子片と、この主素子片の両端側に おいて電気的に接続されて上部筐体の長手方向一端側に向かって配置される略等 長の副素子片とで構成され、展開したときに前記副素子片の一方が下部筐体に設け られる前記アンテナ素子と電磁結合し、前記副素子片の他方が開放端となるという構 成を採る。 [0022] According to this configuration, since the electromagnetic coupling between the parasitic element and the antenna element becomes stronger when opened and deployed, higher antenna performance can be ensured in a call state. (3) In the foldable portable wireless device according to the present invention, in the above invention, the parasitic element includes a main element piece disposed along a short direction of the upper housing, and the main element. It is composed of a substantially equal length sub-element piece that is electrically connected to both ends of the piece and arranged toward one end in the longitudinal direction of the upper housing. A configuration is adopted in which the antenna element provided in the lower casing is electromagnetically coupled and the other of the sub-element pieces is an open end.
[0024] この構成によれば、通話状態においてアンテナ素子の主偏波が地面に対して垂直 となるので、高いアンテナ性能が得られる。  [0024] According to this configuration, since the main polarization of the antenna element is perpendicular to the ground in a call state, high antenna performance can be obtained.
[0025] (4)本発明に係る折畳式携帯無線機は、上記の発明において、前記無給電素子 において、前記主素子片の両端側に配置される前記副主素子片は、それぞれミアン ダ状に形成されているという構成を採る。 [0025] (4) In the foldable portable wireless device according to the present invention, in the parasitic element, in the parasitic element, the sub main element pieces disposed on both ends of the main element piece are respectively meanders. The structure is formed in a shape.
[0026] この構成によれば、通話状態においてアンテナ素子の主偏波が地面に対して垂直 となるので、高いアンテナ性能が得られる。 [0026] According to this configuration, since the main polarization of the antenna element is perpendicular to the ground in a call state, high antenna performance can be obtained.
[0027] (5)本発明に係る折畳式携帯無線機は、上記の発明において、前記無給電素子 は、下部筐体に設けられる前記アンテナ素子と対応する前記上部筐体の短手方向 一端側において上部筐体の長手方向に沿って直線状に配置されているという構成を 採る。 [0027] (5) In the foldable portable wireless device according to the present invention, in the above invention, the parasitic element is a short direction of the upper casing corresponding to the antenna element provided in the lower casing. On the side, it is arranged in a straight line along the longitudinal direction of the upper housing.
[0028] この構成によれば、開いて展開したときに無給電素子とアンテナ素子とを電磁結合 させることができるので、高レ、アンテナ性能が得られる。  [0028] According to this configuration, since the parasitic element and the antenna element can be electromagnetically coupled when opened and deployed, high antenna performance can be obtained.
[0029] (6)本発明に係る折畳式携帯無線機は、上記の発明において、前記無給電素子 は、上部筐体の短手方向に沿って配置される主素子片と、この主素子片の一端側で あって下部筐体に設けられる前記アンテナ素子と対応する片端側において上部筐 体の長手方向一端側に向かって配置される副素子片とで構成されるという構成を採 る。  [0029] (6) In the foldable portable wireless device according to the present invention, in the above invention, the parasitic element includes a main element piece disposed along a short direction of the upper housing, and the main element. A configuration is adopted in which the antenna element is provided on one end side of the piece, and the sub-element piece is disposed on one end side corresponding to the antenna element and toward one end side in the longitudinal direction of the upper case.
[0030] この構成によれば、通話状態においてアンテナ素子の主偏波が地面に対して垂直 となるので、高いアンテナ性能が得られる。  [0030] According to this configuration, since the main polarization of the antenna element is perpendicular to the ground in a call state, high antenna performance can be obtained.
[0031] (7)本発明に係る折畳式携帯無線機は、上記の発明において、前記無給電素子 は、導電性の薄膜や線材で形成され上部筐体を構成する樹脂製ケースの内面また は外面に貼付する方法で、上部筐体の背面側であって展開したときに下部筐体に設 けられる前記アンテナ素子と近接する位置に配置されてレ、るとレ、う構成を採る。 [0031] (7) The foldable portable wireless device according to the present invention is the parasitic element according to the above invention. This is a method of attaching to the inner or outer surface of a resin case that is made of a conductive thin film or wire and constitutes the upper case. The antenna element is arranged at a position close to the antenna element.
[0032] この構成によれば、開いて展開したときに無給電素子とアンテナ素子とを電磁結合 させることができるので、高レ、アンテナ性能が得られる。  [0032] According to this configuration, since the parasitic element and the antenna element can be electromagnetically coupled when opened and deployed, high antenna performance can be obtained.
[0033] (8)本発明に係る折畳式携帯無線機は、上記の発明において、前記無給電素子 の主素子片は、その中央位置を前記上部筐体の短手方向中央位置に合わせて配 置されてレ、るとレ、う構成を採る。  [0033] (8) In the foldable portable wireless device according to the present invention, in the above invention, the main element piece of the parasitic element is aligned with a center position in a short direction of the upper casing. Arranged and placed, it will take the structure.
[0034] この構成によれば、通話状態において主偏波となる垂直偏波成分がより向上する ので、より高いアンテナ性能を確保することができる。  [0034] According to this configuration, since the vertical polarization component that is the main polarization in a call state is further improved, higher antenna performance can be ensured.
[0035] また、本発明の折畳式携帯無線機は、  [0035] Further, the folding portable wireless device of the present invention includes
(9)上部筐体と下部筐体とをヒンジ部で連結することにより、前記上部筐体と前記下 部筐体とが開閉自在な機構を有する折畳式携帯無線機であって、前記下部筐体の 前記ヒンジ部近傍に搭載されたアンテナ素子と、前記上部筐体の前記ヒンジ部近傍 に略半波長の電気長を有する第一の無給電素子と、前記上部筐体に前記第一の無 給電素子に近接した 1個以上の無給電素子を備え、前記上部筐体と前記下部筐体 とを開いた状態で、前記第一の無給電素子の一端を前記アンテナ素子に近接させ て配置し、前記アンテナ素子と前記第一の無給電素子を電磁的に結合させ、前記第 一の無給電素子と前記 1個以上の無給電素子を電磁的に結合させる構成を採る。  (9) A foldable portable wireless device having a mechanism in which the upper housing and the lower housing can be opened and closed by connecting the upper housing and the lower housing with a hinge portion, An antenna element mounted in the vicinity of the hinge portion of the housing, a first parasitic element having an electrical length of approximately half a wavelength in the vicinity of the hinge portion of the upper housing, and the first parasitic element in the upper housing. One or more parasitic elements are provided close to the parasitic element, and one end of the first parasitic element is disposed close to the antenna element with the upper casing and the lower casing open. Then, the antenna element and the first parasitic element are electromagnetically coupled, and the first parasitic element and the one or more parasitic elements are electromagnetically coupled.
[0036] この構成により、通話のために折畳式携帯無線機を開くだけで、第一の無給電素 子がアンテナ素子と電磁結合して、第一の無給電素子と 1個以上の無給電素子が容 量的に結合するので、人体側頭部や手から離れた第一の無給電素子と 1個以上の 無給電素子に電流が分散する。  [0036] With this configuration, the first parasitic element is electromagnetically coupled to the antenna element by simply opening the folding portable radio device for a call, and the first parasitic element and one or more parasitic elements are coupled. Since the feed elements are capacitively coupled, the current is distributed to the first parasitic element and one or more parasitic elements that are separated from the human head or hand.
従って、通話状態において通話利得が劣化することなく広帯域な低 SAR特性を実 現でき高レ、アンテナ性能を確保することができる。  Therefore, it is possible to realize a wide-band low SAR characteristic without degrading the call gain in a call state, and to ensure high antenna performance.
[0037] (10)本発明の折り畳み式携帯無線機は、上記の発明において、前記 1個以上の 無給電素子を、前記第一の無給電素子に近接する前記上部筐体のカメラモジユー ル部に配置した第二の無給電素子とする構成を採る。 [0038] この構成により、通話のために折畳式携帯無線機を開くだけで、第一の無給電素 子がアンテナ素子と電磁結合して、第一の無給電素子と第二の無給電素子が容量 的に結合するので、人体側頭部や手から離れた第一の無給電素子と第二の無給電 素子に電流が分散する。 [0037] (10) In the foldable portable wireless device of the present invention, in the above invention, the one or more parasitic elements are placed in the camera module portion of the upper casing close to the first parasitic element. A configuration is adopted in which the second parasitic element is arranged. [0038] With this configuration, the first parasitic element is electromagnetically coupled to the antenna element by simply opening the foldable portable radio device for a call, so that the first parasitic element and the second parasitic element are coupled. Since the elements are capacitively coupled, the current is distributed to the first parasitic element and the second parasitic element that are separated from the human head or hand.
従って、通話状態において通話利得が劣化することなく広帯域な低 SAR特性を実 現でき高レ、アンテナ性能を確保することができる。  Therefore, it is possible to realize a wide-band low SAR characteristic without degrading the call gain in a call state, and to ensure high antenna performance.
[0039] (11)本発明の折り畳み式無線機は、上記の発明において、前記 1個以上の無給 電素子を、前記第一の無給電素子に近接する前記上部筐体の導体板とする構成を 採る。  [0039] (11) In the foldable radio of the present invention, in the above invention, the one or more passive elements are conductive plates of the upper housing close to the first passive element. Take.
[0040] この横成により、通話のために折畳式携帯無線機を開くだけで、第一の無給電素 子がアンテナ素子と電磁結合して、第一の無給電素子と導体板が容量的に結合す るので、人体側頭部や手から離れた第一の無給電素子と導体板に電流が分散する。 従って、通話状態において通話利得が劣化することなく広帯域な低 SAR特性を実 現でき高レ、アンテナ性能を確保することができる。  [0040] With this horizontal composition, the first parasitic element is electromagnetically coupled to the antenna element simply by opening the folding portable radio device for a call, and the first parasitic element and the conductor plate are capacitive. As a result, the current is distributed to the first parasitic element and the conductor plate that are distant from the human head and hand. Therefore, it is possible to realize a wide-band low SAR characteristic without degrading the call gain in a call state, and to ensure high antenna performance.
[0041] (12)本発明の折り畳み式携帯無線機は、上記の発明において、前記 1個以上の 無給電素子を、前記第一の無給電素子に近接する前記上部筐体の第二の無給電 素子と、前記導体板とする構成を採る。  [0041] (12) In the foldable portable radio of the present invention, in the above invention, the one or more parasitic elements are connected to the second parasitic element of the upper casing adjacent to the first parasitic element. The power feeding element and the conductor plate are employed.
[0042] この構成により、通話のために折畳式携帯無線機を開くだけで、第一の無給電素 子がアンテナ素子と電磁結合して、第一の無給電素子が第二の無給電素子と容量 結合し、更に第一の無給電素子が導体板と容量的に結合するので、人体側頭部や 手から離れた第一の無給電素子と第二の無給電素子と導体板に電流が分散する。 従って、通話状態において通話利得が劣化することなく広帯域な低 SAR性を実現 でき高レ、アンテナ性能を確保することができる。  [0042] With this configuration, the first parasitic element is electromagnetically coupled to the antenna element by simply opening the foldable portable radio device for a call, and the first parasitic element is the second parasitic element. Since the first parasitic element is capacitively coupled to the conductor plate and capacitively coupled to the element, the first parasitic element, the second parasitic element, and the conductor plate that are separated from the human head or hand The current is dispersed. Therefore, it is possible to realize a wide-band low SAR characteristic without degrading the call gain in a call state, and to ensure high antenna performance.
[0043] (13)本発明の折り畳み式携帯無線機は、上記の発明において、前記 1個以上の 無給電素子を前記第一の無給電素子に略平行に近接させる構成を採る。  [0043] (13) The foldable portable wireless device of the present invention employs a configuration in which the one or more parasitic elements are close to the first parasitic element in a substantially parallel manner in the above invention.
[0044] この構成により、第一の無給電素子と 1個以上の無給電素子との電磁結合が強くな る。  [0044] With this configuration, electromagnetic coupling between the first parasitic element and one or more parasitic elements is enhanced.
従って、通話状態において通話利得が劣化することなく広帯域な低 SAR特性を実 現でき高レ、アンテナ性能を確保することができる。 Therefore, wide bandwidth and low SAR characteristics can be achieved without degrading call gain in a call state. It is possible to secure high antenna performance.
[0045] (14)本発明の折り畳み式携帯無線機は、上記の発明において、前記アンテナ素 子としてへリカルアンテナ素子またはミアンダアンテナ素子を用レ、、前記へリカルアン テナ素子または前記ミアンダアンテナ素子の軸方向と前記第一の無給電素子の一 部とを、略平行に配置することにより電磁的に結合させる構成を採る。  [0045] (14) The foldable portable radio of the present invention is the above-described invention, wherein a helical antenna element or a meander antenna element is used as the antenna element, and the helical antenna element or the meander antenna element is used. A configuration is adopted in which the axial direction and a part of the first parasitic element are electromagnetically coupled by arranging them substantially in parallel.
[0046] この構成により、第一の無給電素子とアンテナ素子との電磁結合が強くなる。  With this configuration, electromagnetic coupling between the first parasitic element and the antenna element is strengthened.
従って、通話状態において通話利得が劣化することなく広帯域な低 SAR特性を実 現でき高レ、アンテナ性能を確保することができる。  Therefore, it is possible to realize a wide-band low SAR characteristic without degrading the call gain in a call state, and to ensure high antenna performance.
[0047] (15)本発明の折り畳み式携帯無線機は、上記の発明において、前記上部筐体を 構成する樹脂製カバーの前記アンテナ素子に近接する面に、前記第一の無給電素 子を配置する構成を採る。  [0047] (15) In the foldable portable radio of the present invention, in the above invention, the first parasitic element is disposed on a surface of the resin cover that constitutes the upper casing, the surface being close to the antenna element. Adopt a configuration to arrange.
[0048] この構成により、第一の無給電素子とアンテナ素子との電磁結合が強くなるため、 通話状態において通話利得が劣化することなく広帯域な低 SAR特性を実現でき、こ れにより高いアンテナ性能を確保することができる。  [0048] With this configuration, since the electromagnetic coupling between the first parasitic element and the antenna element is strengthened, it is possible to realize a wide-band low SAR characteristic without degrading the call gain in a call state, thereby achieving high antenna performance. Can be secured.
発明の効果  The invention's effect
[0049] 本発明によれば、特別な機構を追加することなぐまた使用者に余計な操作を依頼 することなぐ単に開いて展開するだけで高いアンテナ性能が得られる。従って、通 話する場合に使用者は単に上部筐体を開いて展開し受話部を耳に当てる通常の操 作を行うだけで済む。  [0049] According to the present invention, high antenna performance can be obtained by simply opening and deploying without adding a special mechanism or requesting an extra operation from the user. Therefore, when talking, the user simply needs to perform the normal operation of opening and deploying the upper housing and placing the earpiece on the ear.
[0050] また、本発明は、通話のために折畳式携帯無線機を開くだけで、第一の無給電素 子がアンテナ素子と電磁結合して、第一の無給電素子と 1個以上の無給電素子が容 量的に結合するので、人体側頭部や手から離れた第一の無給電素子と 1個以上の 無給電素子に電流が分散する。従って、通話状態において通話利得が劣化すること なく広帯域な低 SAR特性を実現でき、高いアンテナ性能を確保することができる。 図面の簡単な説明  [0050] In addition, the present invention provides that the first parasitic element is electromagnetically coupled to the antenna element by simply opening the foldable portable radio device for a call, and one or more first parasitic elements are coupled to the antenna element. Since these parasitic elements are capacitively coupled, the current is distributed to the first parasitic element and one or more parasitic elements that are separated from the human head or hand. Therefore, it is possible to realize a wide-band low SAR characteristic without degrading the call gain in a call state, and to ensure high antenna performance. Brief Description of Drawings
[0051] [図 1]本発明の第 1の実施の形態に係る折畳式携帯無線機の展開状態での外観構 成を説明する背面図である。  FIG. 1 is a rear view for explaining an external configuration of a folding portable wireless device according to a first embodiment of the present invention in an unfolded state.
[図 2]図 1に示す折畳式携帯無線機の展開状態での外観構成等を説明する側面図 である。 FIG. 2 is a side view for explaining the external configuration and the like of the folding portable wireless device shown in FIG. 1 when deployed. It is.
園 3]図 1に示す折畳式携帯無線機が備える無給電素子の構成及び配置を説明す る斜視図である。 3] FIG. 3 is a perspective view for explaining the configuration and arrangement of parasitic elements included in the folding portable wireless device shown in FIG.
園 4]図 1に示す折畳式携帯無線機が備えるアンテナ素子の放射パターンを示す図 である。 4] A diagram showing a radiation pattern of the antenna element provided in the folding portable radio shown in FIG.
[図 5]図 1に示す折畳式携帯無線機が備えることが可能な無給電素子の変形例を示 す図である。  FIG. 5 is a diagram showing a modification of the parasitic element that the foldable portable wireless device shown in FIG. 1 can have.
[図 6]本発明の第 2の実施の形態に係る折畳式携帯無線機が備える無給電素子の 構成を説明する斜視図である。  FIG. 6 is a perspective view for explaining a configuration of a parasitic element provided in a folding portable wireless device according to a second embodiment of the present invention.
[図 7]本発明の第 3の実施の形態に係る折畳式携帯無線機が備える無給電素子の 構成を説明する斜視図である。  FIG. 7 is a perspective view for explaining the configuration of a parasitic element provided in a folding portable wireless device according to a third embodiment of the present invention.
[図 8]図 8 (a)は本発明の第 4の実施の形態における折畳式携帯無線機の背面図、 図 8 (b)は本発明の第 4の実施の形態における折畳式携帯無線機の側面図である。  [FIG. 8] FIG. 8 (a) is a rear view of the folding portable radio device according to the fourth embodiment of the present invention, and FIG. 8 (b) is a folding portable phone according to the fourth embodiment of the present invention. It is a side view of a radio.
[図 9]図 9 (a)は本発明の第 5の実施の形態における折畳式携帯無線機の背面図、 図 9 (b)は本発明の第 5の実施の形態における折畳式携帯無線機の側面図である。 [Fig. 9] Fig. 9 (a) is a rear view of the folding portable radio device according to the fifth embodiment of the present invention, and Fig. 9 (b) is a folding portable phone according to the fifth embodiment of the present invention. It is a side view of a radio.
[図 10]図 10 (a)は本発明の第 6の実施の形態における折畳式携帯無線機の背面図 、図 10 (b)は本発明の第 6の実施の形態における折畳式携帯無線機の側面図であ る。 [Fig. 10] Fig. 10 (a) is a rear view of the folding portable radio device according to the sixth embodiment of the present invention, and Fig. 10 (b) is a folding portable phone according to the sixth embodiment of the present invention. It is a side view of a radio.
園 11]図 11 (a)は本発明の第 7の実施の形態における折畳式携帯無線機の背面図 、図 11 (b)は本発明の第 7の実施の形態における折畳式携帯無線機の側面図であ る。 11] FIG. 11 (a) is a rear view of the folding portable wireless device according to the seventh embodiment of the present invention, and FIG. 11 (b) is a folding portable wireless device according to the seventh embodiment of the present invention. It is a side view of the machine.
[図 12]図 12 (a)は本発明の第 4の実施の形態における折畳式携帯無線機の無給電 素子の変形例を示す図、図 12 (b)は本発明の第 4の実施の形態における折畳式携 帯無線機の無給電素子の別の変形例を示す図、図 12 (c)は本発明の第 4の実施の 形態における折畳式携帯無線機の無給電素子の別の変形例を示す図、図 12 (d)は 本発明の第 4の実施の形態における折畳式携帯無線機の無給電素子の別の変形 例を示す図である。  [FIG. 12] FIG. 12 (a) is a diagram showing a modification of the parasitic element of the folding portable wireless device according to the fourth embodiment of the present invention, and FIG. 12 (b) is the fourth embodiment of the present invention. FIG. 12 (c) is a diagram showing another modified example of the parasitic element of the folding portable radio in the embodiment, and FIG.12 (c) shows the parasitic element of the folding portable radio in the fourth embodiment of the present invention. FIG. 12D is a diagram showing another modification, and FIG. 12D is a diagram showing another modification of the parasitic element of the folding portable wireless device according to the fourth embodiment of the present invention.
園 13]本発明の第 4の実施の形態における特性を示す図である。 [図 14]従来の折畳式携帯無線機の展開状態での外観構成を説明する背面図である 13] FIG. 13 is a diagram showing characteristics in the fourth embodiment of the present invention. FIG. 14 is a rear view for explaining an external configuration of a conventional folding portable wireless device in a deployed state.
[図 15]図 14に示す折畳式携帯無線機の展開状態での外観等の構成例を示す側面 図である。 15 is a side view showing a configuration example such as an appearance of the folding portable wireless device shown in FIG. 14 in an unfolded state.
[図 16]図 14に示す折畳式携帯無線機が備えるアンテナ素子の放射パターンを示す 図である。  FIG. 16 is a diagram showing a radiation pattern of an antenna element provided in the folding portable wireless device shown in FIG.
[図 17]通話状態での折畳式携帯無線機の使用態様を説明する図である。  FIG. 17 is a diagram for explaining how the foldable portable wireless device is used in a call state.
符号の説明 Explanation of symbols
1 第一の無給電素子  1 First parasitic element
2 第二の無給電素子  2 Second parasitic element
3 第二の無給電素子  3 Second parasitic element
4 導体板（金属製表示部ホルダー）  4 Conductor plate (metal display holder)
10 上部筐体  10 Upper housing
11 下部筐体  11 Lower housing
12 ヒンジ部  12 Hinge part
13 受話部  13 Earpiece
14 主表示部  14 Main display
15 副表示装置  15 Sub display device
16 送話部  16 Transmitter
17 回路基板  17 Circuit board
18 無線部  18 Radio section
19 ヘリカルアン  19 Helical Ann
20 給電部  20 Power supply unit
21 カメラモジュ'  21 Camera module
100 上部筐体  100 Upper housing
101 下部筐体  101 Lower housing
102 ヒンジ咅 B  102 Hinge 咅 B
103 主表示部 104 受話部 103 Main display 104 Earpiece
105 副表示部  105 Sub display
106 回路基板  106 Circuit board
107 送話部  107 Transmitter
108 無線部  108 Radio section
109 給電部  109 Power supply unit
110 ヘリカルアンテナ素子  110 Helical antenna element
111、 600、 700 無給電素子  111, 600, 700 Parasitic element
111a, 11 1c, 700a 畐 lj素子片  111a, 11 1c, 700a 畐 lj element
111b, 700b 主素子片  111b, 700b Main element piece
301 導体板  301 Conductor plate
発明を実施するための最良の形態  BEST MODE FOR CARRYING OUT THE INVENTION
[0053] 本発明の骨子は、特別な機構を追加することなぐまた使用者に余計な操作を依頼 することなぐ通話する場合に使用者が単に上部筐体を開いて展開し受話部を耳に 当てる通常の操作をした場合に、使用者の側頭部等の影響を受けずに所望の性能 を発揮するアンテナを備えた折畳式携帯無線機を得ることである。  [0053] The gist of the present invention is that the user simply opens the upper housing and unfolds and listens to the earpiece when he / she talks without adding a special mechanism or requesting the user to perform extra operations. It is to obtain a foldable portable radio device having an antenna that exhibits a desired performance without being affected by a user's temporal region or the like when a normal operation is performed.
[0054] また、本発明の骨子は、通話する際に折畳式携帯無線機を開くだけで、通話状態 において通話利得が劣化することなぐ局所的な人体に吸収される電磁波の比吸収 率である SAR (Specific Absorption Rate)特性を、広帯域に低減させることができ、高 レ、アンテナ性能を有するアンテナを備えた折畳式携帯無線機を得ることである。  [0054] Further, the gist of the present invention is that the specific absorption rate of electromagnetic waves absorbed by a local human body without deteriorating the call gain in a call state simply by opening the folding portable radio device when making a call. A specific SAR (Specific Absorption Rate) characteristic can be reduced over a wide band, and a foldable portable radio device having an antenna having high antenna performance is obtained.
[0055] 以下、本発明の実施の形態について図面を参照して詳細に説明する。  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
《第 1の実施の形態》  First embodiment
図 1及び図 2は、本発明の第 1の実施の形態に係る折畳式携帯無線機の展開状態 での外観構成等を説明する背面図及び側面図である。図 1及び図 2に示すように、 上部筐体 100の下端と下部筐体 101の上端とはヒンジ部 102を介して回動自在に連 結され、両筐体の正面側を閉じて折り畳み、また開いて展開できるようになっている。  FIG. 1 and FIG. 2 are a rear view and a side view for explaining an outer appearance configuration and the like of the folding portable wireless device according to the first embodiment of the present invention in an unfolded state. As shown in FIGS. 1 and 2, the lower end of the upper casing 100 and the upper end of the lower casing 101 are pivotally connected via a hinge 102, and the front sides of both casings are closed and folded. It can be opened and expanded again.
[0056] 上部筐体 100の正面側には、中央付近に主表示部 103が配置され、上端側に受 話部 104が配置されている。また、上部筐体 100の背面側には、中央付近に副表示 部 105が配置されてレ、る。これらは図示しない回路基板に接続されてレ、る。 [0056] On the front side of the upper casing 100, a main display unit 103 is arranged near the center, and a receiving unit 104 is arranged on the upper end side. In addition, on the back side of the upper housing 100, a sub display is displayed near the center. Part 105 is placed. These are connected to a circuit board (not shown).
[0057] 下部筐体 101では、正面上部側にヒンジ部 102が突出して設けられ、上部筐体 10 0の正面側と下部筐体 101の正面側とを閉じて折り畳んだときに上部筐体 100が下 部筐体 101の正面側を塞いで蓋をするようになっている。また、内蔵される回路基板 106の下端側表面には、送話部 107が配置され、上端側背面には無線部 108と給 電部 109とが配置されている。この給電部 109には、下部筐体 101の上部端面に突 出して設けられるヘリカルアンテナ素子 110の一端が接続されている。ヘリカルアン テナ素子 110は、略 4分の 1波長の電気長を有している。 [0057] In the lower casing 101, a hinge portion 102 projects from the front upper side, and the upper casing 100 is folded when the front side of the upper casing 100 and the front side of the lower casing 101 are closed and folded. However, the front side of the lower casing 101 is closed and covered. In addition, a transmitter 107 is disposed on the lower surface of the built-in circuit board 106, and a wireless unit 108 and a power supply unit 109 are disposed on the rear surface of the upper end. One end of a helical antenna element 110 that protrudes from the upper end surface of the lower housing 101 is connected to the power feeding unit 109. The helical antenna element 110 has an electrical length of approximately a quarter wavelength.
[0058] 以上の構成において、導電性の薄膜ゃ線材などで構成され略半波長の電気長を 有する線状の無給電素子 111が上部筐体 100を構成する樹脂製ケースの内面また は外面に貼付する方法で、上部筐体 100の背面側下端のヒンジ部近傍に、即ち、開 いて展開したときに上部筐体 100の背面側におけるヘリカルアンテナ素子 110に近 接する面上に配置されてレ、る。 [0058] In the above configuration, the linear parasitic element 111 made of a conductive thin film wire or the like and having an electrical length of approximately half wavelength is provided on the inner surface or outer surface of the resin case constituting the upper casing 100. In the pasting method, it is arranged in the vicinity of the hinge at the lower end on the back side of the upper casing 100, that is, on the surface close to the helical antenna element 110 on the rear side of the upper casing 100 when opened and deployed. The
[0059] この無給電素子 111は、使用無線周波数が例えば 2GHzであるとすると、全長が略 半波長（自由空間において 75mm)、幅が例えば 2mmの線状導体素子となる力 ケ ースの誘電率や近接物によって物理的な長さは 75mmよりも短くなる。そして、上部 筐体 100は幅が一般に 40mmから 50mm程度であることから、図 1に示すように、 2G Hz用の無給電素子 111は、屈曲部を設けてコ字状に形成して配置する構成となつ ている。  This parasitic element 111 is a force-case dielectric that becomes a linear conductor element having a full length of approximately half wavelength (75 mm in free space) and a width of, for example, 2 mm, assuming that the used radio frequency is 2 GHz, for example. Depending on the rate and proximity, the physical length will be shorter than 75mm. Since the width of the upper casing 100 is generally about 40 mm to 50 mm, the parasitic element 111 for 2 GHz is arranged in a U shape with a bent portion as shown in FIG. It is structured.
[0060] 図 3は、図 1に示す折畳式携帯無線機が備える無給電素子 111の構成及び配置を 説明する斜視図である。図 1及び図 2を参照しつつ図 3に沿って無給電素子 111の 構成及び配置を具体的に説明する。  FIG. 3 is a perspective view for explaining the configuration and arrangement of the parasitic element 111 provided in the foldable portable wireless device shown in FIG. The configuration and arrangement of the parasitic element 111 will be specifically described along FIG. 3 with reference to FIG. 1 and FIG.
[0061] 図 3では、上部筐体 100の明示に代えて、上部筐体 100の内部に存在する導体板 301がアンテナ動作を説明するために抜き出して示されている。この導体板 301の幅 は上部筐体 100の幅とほぼ等しいが、導体板 301と無給電素子 111とは電気的に絶 縁されている。すなわち、無給電素子 111は上部筐体 100の内部に存在する導電性 材料からは電気的に絶縁されている。  In FIG. 3, instead of clearly showing the upper housing 100, a conductor plate 301 existing inside the upper housing 100 is extracted and illustrated for explaining the antenna operation. The width of the conductor plate 301 is substantially equal to the width of the upper casing 100, but the conductor plate 301 and the parasitic element 111 are electrically isolated. That is, the parasitic element 111 is electrically insulated from the conductive material existing in the upper casing 100.
[0062] 無給電素子 111は、上記のように使用する無線周波数と上部筐体 100の幅方向サ ィズとの関係でコ字形状に形成される場合、上部筐体 100の幅方向に対応する長尺 の主素子片 11 lbとこの主素子片 11 lbの両端にぉレヽて同方向に折れ曲がって形成 されるほぼ等長の副素子片 11 la, 111cとで構成される。主素子片 11 lbの長さは、 上部筐体 100の幅とほぼ等しい長さ、副素子片 11 laおよび 111 cの長さは、それぞ れ 1 Ommないし 20mm程度である。 [0062] The parasitic element 111 supports the radio frequency used as described above and the width direction support of the upper casing 100. The main element piece 11 lb corresponding to the width direction of the upper casing 100 and the main element piece 11 lb are bent in the same direction at both ends of the main element piece 11 lb. The sub-element pieces 11 la and 111c are formed with substantially equal lengths. The length of the main element piece 11 lb is substantially equal to the width of the upper housing 100, and the lengths of the sub element pieces 11 la and 111 c are about 1 Omm to 20 mm, respectively.
[0063] 折畳式携帯無線機の幅方向を Y軸方向とし、厚み方向を X軸方向とし、長手方向 を Z軸方向とすると、無給電素子 111は、主素子片 1 1 lbをその中央位置を折畳式携 帯無線機（上部筐体 100)の幅方向中央位置に一致させて Y軸方向にほぼ平行にし 、副素子片 111a, 111cを Z軸方向とほぼ平行にして配置される。図示例では、 Y軸 方向の一端側に副素子片 111aが配置され、 Y軸方向の他端側に副素子片 111cが 配置されている。 [0063] When the width direction of the foldable portable wireless device is the Y-axis direction, the thickness direction is the X-axis direction, and the longitudinal direction is the Z-axis direction, the parasitic element 111 has the main element piece 1 1 lb at its center. The position is matched with the center position in the width direction of the foldable portable radio (upper housing 100) so that it is almost parallel to the Y-axis direction, and the sub-element pieces 111a, 111c are arranged almost parallel to the Z-axis direction. . In the illustrated example, the sub-element piece 111a is arranged on one end side in the Y-axis direction, and the sub-element piece 111c is arranged on the other end side in the Y-axis direction.
[0064] このとき、下部筐体 101の幅方向一端側に配置されるへリカルアンテナ素子 1 10は 導線を螺旋状に卷ぃたものであり、この螺旋の軸方向力 軸方向であるので、副素子 片 11 laは、ヘリカルアンテナ素子 110の軸方向とほぼ並行して配置されることになる  [0064] At this time, the helical antenna element 110 arranged on one end side in the width direction of the lower housing 101 is a spirally wound conductor, and the axial force of this spiral is in the axial direction. The sub-element piece 11 la is arranged almost in parallel with the axial direction of the helical antenna element 110.
[0065] したがって、上部筐体 100を開いて展開したとき、副素子片 11 laはへリカルアンテ ナ素子 110に近接した位置に配置されるので、そのときの間隔を例えば 2mm程度に 設定し、両者間での電磁結合を実現するようにしている。なお、 Y軸方向の他端側に 配置される副素子片 111cは、開放端である。 Therefore, when the upper casing 100 is opened and unfolded, the sub-element piece 11 la is disposed at a position close to the helical antenna element 110, so that the interval at that time is set to about 2 mm, for example. The electromagnetic coupling between them is realized. The sub-element piece 111c disposed on the other end side in the Y-axis direction is an open end.
[0066] 次に、図 1一図 3を参照して、以上のように構成及び配置された無給電素子 111を 備える折畳式携帯無線機の動作について説明する。  Next, with reference to FIG. 1 and FIG. 3, the operation of the foldable portable wireless device including the parasitic element 111 configured and arranged as described above will be described.
[0067] 上部筐体 100を開いて展開した状態において、ヘリカルアンテナ 110が給電部 10 9から励振されると、ヘリカルアンテナ素子 110と副素子片 11 laとが電磁結合し、人 体側頭部や手から離れた位置に在る無給電素子 111にアンテナ電流が励起され集 中して流れるので、ヘリカルアンテナ 110と、上部筐体 100内の導体板 301と上部筐 体 100内の電子部品と下部筐体 101内の電子部品とを接続するフレキシブルプリン ト基板などとの電磁結合が抑制される。  [0067] In a state where the upper housing 100 is opened and deployed, when the helical antenna 110 is excited from the power feeding unit 109, the helical antenna element 110 and the sub-element piece 11la are electromagnetically coupled to each other, The antenna current is excited in the parasitic element 111 located away from the hand and flows in a concentrated manner. Electromagnetic coupling with a flexible printed circuit board connecting the electronic components in the housing 101 is suppressed.
[0068] このとき、副素子片 111 aとへリカルアンテナ素子 110との距離が近いほど無給電素 子 111とへリカルアンテナ素子 110との電磁結合は大きくなる。また、ヘリカルアンテ ナ素子 110に流れる電流の方向は、遠方界放射特性を考慮すると、その方向がヘリ カルアンテナ素子 110の軸方向、即ち Z軸方向であることから、副素子片 11 laが Z 軸方向に平行となるほど電磁結合は大きくなる。 [0068] At this time, as the distance between the sub-element piece 111a and the helical antenna element 110 is shorter, the parasitic element The electromagnetic coupling between the child 111 and the helical antenna element 110 is increased. Further, the direction of the current flowing through the helical antenna element 110 is the axial direction of the helical antenna element 110, that is, the Z-axis direction in consideration of the far-field radiation characteristics. The electromagnetic coupling increases as the axis becomes parallel.
[0069] そして、無給電素子 111の電気長は、半波長であるので、無給電素子 111におけ る電流のピーク位置は、無給電素子 111の中央位置、即ち、主素子片 111bの中央 位置に存在する。よって、主素子片 111bが最も放射に寄与する。なお、折畳式携帯 無線機を閉じた状態においては、無給電素子 111はへリカルアンテナ素子 110から 離隔してレ、るので放射に寄与しなレ、。 [0069] Since the electrical length of the parasitic element 111 is a half wavelength, the peak position of the current in the parasitic element 111 is the central position of the parasitic element 111, that is, the central position of the main element piece 111b. Exists. Therefore, the main element piece 111b contributes most to radiation. When the foldable portable radio is closed, the parasitic element 111 is separated from the helical antenna element 110, and thus does not contribute to radiation.
[0070] ここで、以上のように作用する無給電素子を備えることで図 1に示す折畳式携帯無 線機にて得られるアンテナ特性について説明する。図 4は、図 1に示す折畳式携帯 無線機が備えるアンテナ素子の放射パターンを示す図である。  Here, the antenna characteristics obtained by the folding portable radio shown in FIG. 1 by providing the parasitic element acting as described above will be described. FIG. 4 is a diagram showing a radiation pattern of an antenna element provided in the folding portable radio shown in FIG.
[0071] 図 4では、図 16と同様に、直交座標 XYZにおける XZ面での E φ成分 401と Ε Θ成 分 402とが示されている。図 16と比較して、図 4では、 Ε Θ成分 402力 S全般に小さく、 Ε φ成分 401が全般に大きぐ特に Ζ方向の Ε φ成分 401が 4dB程度高い。 Z方向の Ε φ成分 401の向上は、図 17に示す使用態様での通話状態において、地面に対す る垂直偏波成分の向上を意味するので、高いアンテナ性能が得られる。  In FIG. 4, as in FIG. 16, the Eφ component 401 and the ΕΘ component 402 on the XZ plane in the orthogonal coordinates XYZ are shown. Compared to Fig. 16, in Fig. 4, Ε Θ component 402 force S is small in general, and Ε φ component 401 is generally large, especially Ε φ component 401 in the Ζ direction is about 4dB higher. The improvement of the Εφ component 401 in the Z direction means that the vertical polarization component with respect to the ground is improved in the conversation state in the usage mode shown in FIG. 17, so that high antenna performance can be obtained.
[0072] 即ち、ヘリカルアンテナ素子 110と電磁結合する無給電素子 111を設けることによ つてアンテナ性能が改善できたのである。このとき、上部筐体 100の幅方向に略平行 な主素子片 11 lbが Z軸方向の Ε φ成分を向上するので、通話状態においてより高 レ、アンテナ性能を確保することができる。  That is, the antenna performance can be improved by providing the parasitic element 111 that is electromagnetically coupled to the helical antenna element 110. At this time, the main element piece 11 lb substantially parallel to the width direction of the upper housing 100 improves the Εφ component in the Z-axis direction, so that higher antenna performance can be ensured in a talking state.
[0073] なお、無給電素子 111の形態は、図 1一図 3に示す以外に、例えば図 5に示すよう に種々の形態が採用可能である。図 5は、図 1に示す折畳式携帯無線機が備えるこ とが可能な無給電素子の変形例を示す図である。  In addition to the forms shown in FIG. 1 and FIG. 3, various forms can be adopted as the form of the parasitic element 111 as shown in FIG. 5, for example. FIG. 5 is a diagram showing a modification of the parasitic element that the foldable portable radio shown in FIG. 1 can have.
[0074] 即ち、図 5 (a)に示すようにコ字状の両角部を曲線状に滑らかにした形態とすること でもよい。図 5 (b)に示すように長尺の主素子片の両端側に配置される副素子片をミ アンダ状にした形態とすることでもよい。図 5 (c)に示すようにへリカルアンテナ素子と 電磁結合する副素子片の長さを長くしてその途中を Y軸方向に折り曲げて形成した 形態とすることでもよい。また、無給電素子の幅は一定である必要がないので、図 5 ( d)に示すように、リング状の金属性装飾部を長尺の主素子片の中央位置としてその 両側から細い幅の素子片を引き出し、両端に副素子片を配置するようにした形態と することでちょレ、。 In other words, as shown in FIG. 5 (a), both U-shaped corners may be smoothly curved. As shown in FIG. 5 (b), the sub-element pieces arranged on both ends of the long main element piece may be in the form of a meander. As shown in Fig. 5 (c), the length of the sub-element piece that electromagnetically couples with the helical antenna element was increased and bent halfway along the Y-axis. It may be a form. In addition, since the width of the parasitic element does not have to be constant, as shown in Fig. 5 (d), the ring-shaped metallic decorative part is used as the center position of the long main element piece, and the width of the narrow element By taking out the element pieces and arranging the sub-element pieces at both ends, it is possible to do so.
[0075] また、アンテナ素子としてはへリカルアンテナ素子 110に限るものではなぐ例えば ミアンダアンテナ素子でもよぐまた伸縮式の棒状アンテナ素子でもよい。  [0075] The antenna element is not limited to the helical antenna element 110. For example, a meander antenna element or a telescopic rod antenna element may be used.
[0076] このように、第 1の実施の形態によれば、上部筐体を開いて展開したときに下部筐 体に設けられるアンテナ素子と電磁結合が可能となる線状の無給電素子を上部筐体 に設けたので、通話状態においてアンテナ性能を改善することができる。このとき、無 給電素子は、上部筐体の短手方向（幅方向）に沿って配置される主素子片を備え、 かつその中央位置を上部筐体の短手方向中央位置に一致させてあるので、通話状 態において地面に対する垂直偏波成分を向上することができ、より高いアンテナ性 能を確保することができる。  As described above, according to the first embodiment, when the upper casing is opened and deployed, the linear parasitic element that can be electromagnetically coupled to the antenna element provided in the lower casing is disposed on the upper section. Since it is provided in the housing, the antenna performance can be improved in a call state. At this time, the parasitic element includes a main element piece arranged along the short side direction (width direction) of the upper casing, and the center position thereof coincides with the central position of the upper casing in the short side direction. As a result, the vertical polarization component with respect to the ground can be improved in a call state, and higher antenna performance can be ensured.
[0077] したがって、通話する場合に、使用者は、単に上部筐体を開いて展開し受話部を 耳に当てる通常の操作をするだけで、側頭部や手の影響による感度劣化を抑制する こと力 Sできる。  [0077] Therefore, when making a call, the user can suppress the deterioration of sensitivity due to the influence of the temporal region and the hand by simply opening the upper housing and unfolding it and performing the normal operation of placing the earpiece on the ear. That power S.
[0078] 《第 2の実施の形態》  << Second Embodiment >>
図 6は、本発明の第 2の実施の形態に係る折畳式携帯無線機が備える無給電素子 の構成を説明する斜視図である。なお、図 6では、図 3に示した構成と同一ないしは 同等である構成には同一の符号が付されている。ここでは、この第 2の実施の形態に 関わる部分を中心に説明する。  FIG. 6 is a perspective view for explaining the configuration of a parasitic element provided in the folding portable wireless device according to the second embodiment of the present invention. In FIG. 6, the same or equivalent components as those shown in FIG. 3 are denoted by the same reference numerals. Here, the description will focus on the parts related to the second embodiment.
[0079] 図 6において、第 2の実施の形態に係る折畳式携帯無線機が備える無給電素子 60 0は、導電性の薄膜ゃ線材などで構成され略半波長の電気長を有し、上部筐体 100 を構成する樹脂製ケースの内面または外面に貼付する方法で、上部筐体 100の背 面側下端のヒンジ部近傍に、即ち、上部筐体 100の背面側におけるヘリカルアンテ ナ素子 110に近接する面上に配置されている点は、図 3に示した無給電素子 111と 同様であるが、形態が図 3に示した無給電素子 111とは異なっている。  In FIG. 6, the parasitic element 600 included in the folding portable wireless device according to the second embodiment is composed of a conductive thin film wire or the like and has an electrical length of approximately half a wavelength, A helical antenna element 110 in the vicinity of the hinge at the lower end on the back side of the upper casing 100, that is, on the back side of the upper casing 100, by affixing it to the inner or outer surface of the resin case constituting the upper casing 100. 3 is the same as the parasitic element 111 shown in FIG. 3 except that the configuration is different from that of the parasitic element 111 shown in FIG.
[0080] 即ち、第 2の実施の形態に係る折畳式携帯無線機が備える無給電素子 600は、上 部筐体 100の長手方向（z軸方向）に沿って直線状に配置されている。使用無線周 波数が例えば 2GHzであるとすると、全長が略半波長（自由空間において 75mm)、 幅が例えば 2mmの直線状導体素子となる。 That is, the parasitic element 600 included in the folding portable wireless device according to the second embodiment is Arranged in a straight line along the longitudinal direction (z-axis direction) of the partial housing 100. Assuming that the radio frequency used is 2 GHz, for example, a linear conductor element having a total length of approximately half wavelength (75 mm in free space) and a width of 2 mm, for example.
[0081] そして、上部筐体 100を開いて展開したとき、無給電素子 600のヒンジ部側端は、 ヘリカルアンテナ素子 110に近接した位置に配置されるので、そのときの間隔を例え ば 2mm程度に設定し、両者間での電磁結合を実現するようにしている点も第 1の実 施の形態と同様である。  [0081] When the upper casing 100 is opened and unfolded, the end of the parasitic element 600 on the hinge side is disposed at a position close to the helical antenna element 110. For example, the distance at that time is about 2 mm. This is the same as in the first embodiment in that the electromagnetic coupling between the two is realized.
[0082] したがって、上部筐体 100を開いて展開した状態において、ヘリカルアンテナ素子 110が給電部 109から励振されると、ヘリカルアンテナ素子 110と無給電素子 600の 下端部とが電磁結合し、人体側頭部や手から離れた位置に在る無給電素子 600に アンテナ電流が励起され集中するので、第 1の実施の形態と同様に、ヘリカルアンテ ナ 110と、上部筐体 100内の導体板 301と上部筐体 100内の電子部品と下部筐体 1 01内の電子部品とを接続するフレキシブルプリント基板などとの電磁結合が抑制さ れる。即ち、通話状態において高いアンテナ性能を確保することができる。  Therefore, when the helical antenna element 110 is excited from the feeding portion 109 in the state where the upper casing 100 is opened and unfolded, the helical antenna element 110 and the lower end portion of the parasitic element 600 are electromagnetically coupled to each other. Since the antenna current is excited and concentrated on the parasitic element 600 located away from the temporal region and the hand, as in the first embodiment, the helical antenna 110 and the conductor plate in the upper housing 100 are Electromagnetic coupling between 301 and an electronic component in the upper casing 100 and a flexible printed circuit board that connects the electronic components in the lower casing 101 is suppressed. That is, high antenna performance can be ensured in a call state.
[0083] このように、第 2の実施の形態によれば、上部筐体を開いて展開したときに下部筐 体に設けられるアンテナ素子と電磁結合が可能となる直線状の無給電素子を上部筐 体に設けたので、高いアンテナ性能を確保することができる。  As described above, according to the second embodiment, when the upper casing is opened and unfolded, the linear parasitic element that can be electromagnetically coupled to the antenna element provided in the lower casing is disposed on the upper section. Since it is provided in the case, high antenna performance can be secured.
[0084] したがって、通話する場合に、使用者は、単に上部筐体を開いて展開し受話部を 耳に当てる通常の操作をするだけで、側頭部や手の影響による感度劣化を抑制する こと力 Sできる。  [0084] Therefore, when making a call, the user simply opens the upper housing and unfolds it, and performs the normal operation of placing the earpiece on the ear. That power S.
[0085] 《第 3の実施の形態》  [0085] <Third embodiment>
図 7は、本発明の第 3の実施の形態に係る折畳式携帯無線機が備える無給電素子 の構成を説明する斜視図である。なお、図 7では、図 3に示した構成と同一ないしは 同等である構成には同一の符号が付されている。ここでは、この第 3の実施の形態に 関わる部分を中心に説明する。  FIG. 7 is a perspective view for explaining the configuration of a parasitic element included in the folding portable wireless device according to the third embodiment of the present invention. In FIG. 7, components that are the same as or equivalent to the components shown in FIG. 3 are given the same reference numerals. Here, the description will focus on the parts related to the third embodiment.
[0086] 図 7において、第 3の実施の形態に係る折畳式携帯無線機が備える無給電素子 70 0は、導電性の薄膜ゃ線材などで構成され略半波長の電気長を有し、上部筐体 100 に内蔵される樹脂製ケースの内面または外面に貼付する方法で、上部筐体 100の 背面側下端のヒンジ部近傍に、即ち、上部筐体 100の背面側におけるヘリカルアン テナ素子 110に近接する面上に配置されている点は、図 3に示した無給電素子 111 と同様である力 形態が図 3に示した無給電素子 111とは異なっている。 In FIG. 7, the parasitic element 700 included in the folding portable wireless device according to the third embodiment is composed of a conductive thin film wire or the like and has an electrical length of approximately half wavelength, By attaching to the inner or outer surface of the plastic case built into the upper case 100, It is the same as the parasitic element 111 shown in FIG. 3 in that it is arranged near the hinge part at the lower end on the back side, that is, on the surface close to the helical antenna element 110 on the back side of the upper housing 100. The force form is different from the parasitic element 111 shown in FIG.
[0087] 即ち、第 3の実施の形態に係る折畳式携帯無線機が備える無給電素子 700は、略 L字状に形成されている。具体的には、上部筐体 100の幅方向（Y軸方向）における ヘリカルアンテナ素子 110が配置される一端側において上部筐体 100の長手方向（ Z軸方向）に沿う副素子片 700aと、この副素子片 700aの長手方向先端力も折れ曲 がって上部筐体 100の幅方向（Y軸方向）に沿う主素子片 700bとで構成されている 。主素子片 700bの中央位置は、上部筐体 100の幅方向（Y軸方向）の中央位置と一 致している。 That is, the parasitic element 700 included in the folding portable wireless device according to the third embodiment is formed in a substantially L shape. Specifically, the sub-element piece 700a along the longitudinal direction (Z-axis direction) of the upper housing 100 on one end side where the helical antenna element 110 is arranged in the width direction (Y-axis direction) of the upper housing 100, and this The main element piece 700b is also bent along the width direction (Y-axis direction) of the upper housing 100 by bending the front end force in the longitudinal direction of the sub element piece 700a. The center position of the main element piece 700b matches the center position of the upper casing 100 in the width direction (Y-axis direction).
[0088] この第 3の実施の形態に係る折畳式携帯無線機が備える無給電素子 700において も、使用無線周波数が例えば 2GHzであるとすると、全長が略半波長（自由空間にお いて 75mm)、幅が例えば 2mmの線状導体素子となる。  [0088] Also in parasitic element 700 provided in the folding portable wireless device according to the third embodiment, assuming that the used radio frequency is, for example, 2 GHz, the total length is approximately half a wavelength (75 mm in free space). ), A linear conductor element having a width of 2 mm, for example.
[0089] そして、上部筐体 100を開いて展開したとき、無給電素子 700の副素子片 700aは ヘリカルアンテナ素子 110に近接した位置に配置されるので、そのときの間隔を例え ば 2mm程度に設定し、両者間での電磁結合を実現するようにしている点も第 1の実 施の形態と同様である。  [0089] When the upper casing 100 is opened and unfolded, the sub-element piece 700a of the parasitic element 700 is disposed at a position close to the helical antenna element 110, and the spacing at that time is, for example, about 2 mm. It is the same as in the first embodiment in that it is set and electromagnetic coupling is realized between the two.
[0090] したがって、上部筐体 100を開いて展開した状態において、ヘリカルアンテナ素子 110が給電部 109から励振されると、ヘリカルアンテナ素子 110と無給電素子 700の 副素子片 700aとが電磁結合し、人体側頭部や手から離れた位置に在る無給電素子 700にアンテナ電流が励起され集中するので、第 1の実施の形態と同様に、ヘリカル アンテナ素子 110と、上部筐体 100内の導体板 301と上部筐体 100内の電子部品と 下部筐体 101内の電子部品とを接続するフレキシブルプリント基板などとの電磁結合 が抑制される。即ち通話状態において高いアンテナ性能を確保することができる。  [0090] Therefore, when the helical antenna element 110 is excited from the feeding portion 109 in a state where the upper casing 100 is opened and deployed, the helical antenna element 110 and the sub-element piece 700a of the parasitic element 700 are electromagnetically coupled. Since the antenna current is excited and concentrated on the parasitic element 700 located away from the human head and the hand, as in the first embodiment, the helical antenna element 110 and the upper housing 100 Electromagnetic coupling between the conductive plate 301 and the flexible printed circuit board connecting the electronic components in the upper housing 100 and the electronic components in the lower housing 101 is suppressed. That is, high antenna performance can be ensured in a call state.
[0091] このように、第 3の実施の形態によれば、上部筐体を開いて展開したときに下部筐 体に設けられるアンテナ素子と電磁結合が可能となる線状の無給電素子を上部筐体 に設けたので、通話状態においてアンテナ性能を改善することができる。このとき、無 給電素子は、上部筐体の短手方向（幅方向）に沿って配置される主素子片を備え、 かつその中央位置を上部筐体の短手方向中央位置に一致させてあるので、通話状 態において地面に対する垂直偏波成分を向上することができ、より高いアンテナ性 能を確保することができる。 As described above, according to the third embodiment, the linear parasitic element that can be electromagnetically coupled to the antenna element provided in the lower housing when the upper housing is opened and expanded is provided on the upper portion. Since it is provided in the housing, the antenna performance can be improved in a call state. At this time, the parasitic element includes a main element piece arranged along the short side direction (width direction) of the upper housing, In addition, since the center position is made coincident with the center position in the short direction of the upper housing, the vertical polarization component with respect to the ground can be improved in a call state, and higher antenna performance can be secured.
[0092] したがって、通話する場合に、使用者は、単に上部筐体を開いて展開し受話部を 耳に当てる通常の操作をするだけで、側頭部や手の影響による感度劣化を抑制する こと力 Sできる。  [0092] Therefore, when making a call, the user simply opens the upper housing and unfolds it, and performs the normal operation of placing the earpiece on his / her ear, thereby suppressing deterioration of sensitivity due to the influence of the temporal region and hand. That power S.
[0093] 以下、本発明の実施形態の折畳式携帯無線機について、図面を用いて詳細に説 明する。なお、アンテナの動作周波数は 2GHzとして説明する。  Hereinafter, a folding portable wireless device according to an embodiment of the present invention will be described in detail with reference to the drawings. The operation frequency of the antenna is assumed to be 2 GHz.
[0094] 《第 4の実施の形態》  [0094] <Fourth embodiment>
本発明の第 4の実施の形態の折畳式携帯無線機の開いた状態を図 8に示す。図 8 (a)は背面図、図 8 (b)は側面図である。  FIG. 8 shows an open state of the folding portable wireless device according to the fourth embodiment of the present invention. Fig. 8 (a) is a rear view and Fig. 8 (b) is a side view.
[0095] 図 8において、前述した図 14に示す従来の折畳式携帯無線機 1と同一の構成要素 については、同一の符号を付して説明を省略する。  In FIG. 8, the same components as those of the conventional folding portable wireless device 1 shown in FIG. 14 described above are denoted by the same reference numerals and description thereof is omitted.
[0096] 図 8 (a) , (b)において、符号 1は上部筐体 10においてヒンジ部近傍に備えた第一 の無給電素子である。第一の無給電素子 1は、全長が略半波長（自由空間において 75mm)、幅が例えば 3mmの線状導体素子であり、導電性の薄膜ゃ線材等で構成さ れ、上部筐体 10の副表示装置 15側の樹脂製ケースの内面または外面に貼付される  In FIGS. 8A and 8B, reference numeral 1 denotes a first parasitic element provided in the vicinity of the hinge portion in the upper housing 10. The first parasitic element 1 is a linear conductor element having an overall length of approximately half wavelength (75 mm in free space) and a width of, for example, 3 mm, and is formed of a conductive thin film wire or the like. Attached to the inner or outer surface of the plastic case on the secondary display 15
[0097] すなわち、第一の無給電素子 1は上部筐体 10におけるヘリカルアンテナ素子 19に 近接する面上に構成される。この場合、ケースの誘電率や近接物によって物理的な 長さは 75mmよりも短くなる。 2は上部筐体 10において第一の無給電素子に近接した 1個以上の無給電素子であり、全長は略半波長でなくても良い。また、 1個以上の無 給電素子 2はお互いに近接してレ、なくても良レ、。 That is, the first parasitic element 1 is configured on a surface of the upper housing 10 that is close to the helical antenna element 19. In this case, the physical length will be shorter than 75 mm due to the dielectric constant of the case and proximity. Reference numeral 2 denotes one or more parasitic elements adjacent to the first parasitic element in the upper casing 10, and the total length may not be substantially half a wavelength. Also, one or more parasitic elements 2 can be close to each other or not.
[0098] また、第一の無給電素子 1、および 1個以上の無給電素子 2は、上部筐体 10の導 体板 4、受話部 13、主表示部 14、副表示装置 15等と電気的に絶縁されている。すな わち、第一の無給電素子 1、および 1個以上の無給電素子 2は、上部筐体 10の内部 に存在する導電性材料からは電気的に絶縁されている。  [0098] The first parasitic element 1 and the one or more parasitic elements 2 are electrically connected to the conductor plate 4, the receiver 13, the main display 14, the sub display 15 and the like of the upper housing 10. Is electrically insulated. That is, the first parasitic element 1 and the one or more parasitic elements 2 are electrically insulated from the conductive material present in the upper housing 10.
[0099] また、折畳式携帯無線機を開いた状態において、第一の無給電素子 1の一端を給 電部 20に近接させて、ヘリカルアンテナ素子 19の軸方向すなわち Z方向にほぼ平行 に配置する。ヘリカルアンテナ素子 19は導線をら旋状に巻いたものであり、このら旋 の軸方向と第一の無給電素子 1とを平行に配置する。 [0099] In addition, one end of the first parasitic element 1 is supplied with the folding portable wireless device opened. The helical antenna element 19 is arranged in parallel to the axial direction of the helical antenna element 19, that is, the Z direction, close to the electrical unit 20. The helical antenna element 19 is formed by winding a conducting wire in a spiral shape, and the axial direction of this spiral and the first parasitic element 1 are arranged in parallel.
[0100] ここで、ヘリカルアンテナ素子 19と第一の無給電素子 1との間隔は、例えば 5mm程 度に設定される。これによりヘリカルアンテナ素子 19と第一の無給電素子 1とは電磁 結合し、更に 1個以上の無給電素子 2は第一の無給電素子と略平行に配置し、近接 した第一の無給電素子 1は 1個以上の無給電素子 2とも電磁結合を実現する。  Here, the distance between the helical antenna element 19 and the first parasitic element 1 is set to about 5 mm, for example. As a result, the helical antenna element 19 and the first parasitic element 1 are electromagnetically coupled, and one or more parasitic elements 2 are arranged substantially in parallel with the first parasitic element, and the first parasitic element adjacent thereto is arranged. Element 1 also achieves electromagnetic coupling with one or more parasitic elements 2.
[0101] 上記のように、この折畳式携帯無線機は、上部筐体 10と下部筐体 11とをヒンジ部 1 2で連結して開閉自在な機構を有する折畳式携帯無線機であって、下部筐体 11のヒ ンジ部 12の近傍に搭載されたへリカルアンテナ素子 19と、上部筐体 10のヒンジ部 1 2近傍に略半波長の電気長を有する第一の無給電素子 1と、上部筐体 10に第一の 無給電素子 1に近接した 1個以上の無給電素子 2とを備えている。  [0101] As described above, this foldable portable radio is a foldable portable radio having a mechanism that can be opened and closed by connecting the upper casing 10 and the lower casing 11 with the hinge portion 12. The helical antenna element 19 mounted in the vicinity of the hinge 12 of the lower housing 11 and the first parasitic element 1 having a substantially half-wave electrical length in the vicinity of the hinge 12 of the upper housing 10 1 And one or more parasitic elements 2 adjacent to the first parasitic element 1 in the upper housing 10.
[0102] そして、折畳式携帯無線機を開いた状態において第一の無給電素子 1の一端をへ リカルアンテナ素子 19に近接して配置し、アンテナ素子としてへリカルアンテナ素子 19またはミアンダアンテナ素子を用い、ヘリカルアンテナ素子 19またはミアンダアン テナ素子の軸方向と第一の無給電素子 1の一部とを略平行に配置し、第一の無給電 素子 1と 1個以上の無給電素子 2とを略平行に配置し、上部筐体 10を構成する樹脂 製カバーのヘリカルアンテナ素子 19に近接する面に、第一の無給電素子 1と 1個以 上の無給電素子 2とを配置する。  [0102] Then, one end of the first parasitic element 1 is arranged close to the helical antenna element 19 in a state in which the folding portable wireless device is opened, and the helical antenna element 19 or the meander antenna element is used as the antenna element. , The axial direction of the helical antenna element 19 or the meander antenna element and a part of the first parasitic element 1 are arranged substantially in parallel, and the first parasitic element 1 and one or more parasitic elements 2 Are arranged substantially parallel to each other, and the first parasitic element 1 and one or more parasitic elements 2 are arranged on a surface of the resin cover constituting the upper housing 10 close to the helical antenna element 19.
[0103] 以上のように構成された折畳式携帯無線機について、図 8、図 12を用いてその動 作を説明する。まず、ヘリカルアンテナ素子 19が給電部 20から励振されると、ヘリ力 ルアンテナ素子 19と第一の無給電素子 1とが電磁結合し、更に第一の無給電素子 1 に近接した 1個以上の無給電素子 2に容量結合する。  [0103] The operation of the foldable portable wireless apparatus configured as described above will be described with reference to Figs. First, when the helical antenna element 19 is excited from the feeding unit 20, the helical antenna element 19 and the first parasitic element 1 are electromagnetically coupled, and one or more adjacent ones close to the first parasitic element 1 Capacitive coupling to parasitic element 2
[0104] これにより、人体側頭部や手から離れた第一の無給電素子 1と 1個以上の無給電素 子 2とにアンテナ電流が励起され、ヘリカルアンテナ素子 19と、上部筐体 10内の導 電板としての金属製表示部ホルダー 4や、上部筐体 10内の電子部品と下部筐体 11 内の電子部品を接続するフレキシブルプリント基板等との電磁結合を抑制する。  As a result, antenna current is excited in the first parasitic element 1 and one or more parasitic elements 2 away from the human head or hand, and the helical antenna element 19 and the upper casing 10 are excited. It suppresses electromagnetic coupling between the metal display unit holder 4 as the inner conductive plate and the flexible printed circuit board connecting the electronic components in the upper housing 10 and the electronic components in the lower housing 11.
[0105] このため、電流が人体から遠い第一の無給電素子 1と 1個以上の無給電素子 2との 側に分散し、局所的な人体に吸収される電磁波の比吸収率である SARが低く抑えら れる。 [0105] For this reason, the first parasitic element 1 whose current is far from the human body and one or more parasitic elements 2 SAR, which is the specific absorption rate of electromagnetic waves that are dispersed on the side and absorbed by the local human body, is kept low.
[0106] また、図 8に示すように、第一の無給電素子 1のみの時と比較して、 1個以上の無給 電素子 2が第一の無給電素子 1に近接して配置されると、第一の無給電素子 1と 1個 以上の無給電素子 2とが容量的に結合しているため、広帯域な低 SAR特性を実現で きる。  In addition, as shown in FIG. 8, one or more parasitic elements 2 are arranged close to the first parasitic element 1 as compared with the case of only the first parasitic element 1. In addition, since the first parasitic element 1 and one or more parasitic elements 2 are capacitively coupled, a wide-band low SAR characteristic can be realized.
[0107] このとき、第一の無給電素子 1とへリカルアンテナ素子 19との距離が近いほど第一 の無給電素子 1とへリカルアンテナ素子 19との電磁結合は大きレ、。また、ヘリカルァ ンテナ素子 19に流れる電流の方向は遠方界放射特性を考慮すると、ヘリカルアンテ ナ素子 19の軸方向すなわち Z方向であることから、第一の無給電素子 1が Z方向に 平行となるほど電磁結合は大きぐ第一の無給電素子 1と 1個以上の無給電素子 2と が略平行となるほど電磁結合は大きい。なお、折畳式携帯無線機を閉じた状態にお レ、ては、第一の無給電素子 1はへリカルアンテナ素子 19から離隔し放射に寄与しな レ、。  At this time, the electromagnetic coupling between the first parasitic element 1 and the helical antenna element 19 increases as the distance between the first parasitic element 1 and the helical antenna element 19 decreases. Also, considering the far-field radiation characteristics, the direction of the current flowing through the helical antenna element 19 is the axial direction of the helical antenna element 19, that is, the Z direction, so that the first parasitic element 1 becomes parallel to the Z direction. The electromagnetic coupling increases as the first parasitic element 1 and the one or more parasitic elements 2 become substantially parallel. When the folding portable radio is closed, the first parasitic element 1 is separated from the helical antenna element 19 and does not contribute to radiation.
[0108] なお、図 12は第一の無給電素子 1と、 1個以上の無給電素子 2の形状の変更例を 示す図であり、上記実施の形態で述べた直線の帯状に限るものではなぐ図 12 (a) に示す曲線状、図 12 (b)に示すクランク状、図 12 (c)に示す長方形状、図 12 (d)に 示すミアンダ形状であってもよい。  [0108] Fig. 12 is a diagram showing a modification example of the shape of the first parasitic element 1 and one or more parasitic elements 2, and is not limited to the linear strip described in the above embodiment. The curved shape shown in FIG. 12 (a), the crank shape shown in FIG. 12 (b), the rectangular shape shown in FIG. 12 (c), and the meander shape shown in FIG. 12 (d) may be used.
[0109] また、アンテナ素子としてはへリカルアンテナ素子 19に限るものではなぐ例えば伸 縮式の棒状アンテナ素子等であってもよレ、。 [0109] Further, the antenna element is not limited to the helical antenna element 19, but may be, for example, an expansion-contraction rod-shaped antenna element.
[0110] 《第 5の実施の形態》 [0110] Fifth Embodiment
次に、本発明の第 5の実施の形態の折畳式携帯無線機について説明する。図 9は Next, a folding portable wireless device according to a fifth embodiment of the present invention will be described. Figure 9
、第 5の実施の形態の折畳式携帯無線機の開いた状態を示す。図 9 (a)は背面図、 図 9 (b)は側面図である。 The foldable portable radio | wireless machine of 5th Embodiment is shown in the open state. Fig. 9 (a) is a rear view and Fig. 9 (b) is a side view.
[0111] 図 9において、第 4の実施の形態における折畳式携帯無線機と同一の構成要素に ついては同一の符号を付して説明を省略する。 In FIG. 9, the same components as those of the folding portable wireless device according to the fourth embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0112] 図 9において、 21は上部筐体 10に配置されたカメラモジュールであり、カメラモジュ ール 21のへリカルアンテナ素子 19側に、第二の無給電素子 3を配置する。第二の無 給電素子 3は例えば 20mm X 10mm程度の導体素子であり、第一の無給電素子 1とへ リカルアンテナ素子 19近傍とで近接するように配置し、上部筐体 10の副表示装置 1 5側の樹脂製ケースの内面または外面に貼付する。第二の無給電素子 3は、カメラモ ジュール 21のレンズの部分をくり抜レ、た形状でも良レ、。 In FIG. 9, reference numeral 21 denotes a camera module arranged in the upper housing 10, and the second parasitic element 3 is arranged on the helical antenna element 19 side of the camera module 21. Second nothing The feed element 3 is a conductor element of about 20 mm × 10 mm, for example, and is disposed so as to be close to the first parasitic element 1 and the vicinity of the helical antenna element 19, and Affix to the inner or outer surface of the resin case. The second parasitic element 3 has a hollow lens part of the camera module 21 and a good shape.
[0113] 以上のように構成された折畳式携帯無線機において、第一の無給電素子 1がヘリ カルアンテナ素子 19と電磁結合し、第一の無給電素子 1と第二の無給電素子 3とが 容量的に結合することにより、人体側頭部や手から離れた第一の無給電素子 1と第 二の無給電素子 3とに電流が分通話状態において高いアンテナ性能を確保すること ができる。 [0113] In the foldable portable radio device configured as described above, the first parasitic element 1 is electromagnetically coupled to the helical antenna element 19, and the first parasitic element 1 and the second parasitic element As a result of capacitive coupling, the first parasitic element 1 and the second parasitic element 3 that are separated from the human head or hand are required to secure high antenna performance in a state where the current is divided. Can do.
[0114] 以上のように、本発明の第 5の実施の形態の折畳式携帯無線機は、下部筐体 11の ヒンジ部 12近傍に搭載されたアンテナ素子 19と、上部筐体 10のヒンジ部 12近傍に 略半波長の電気長を有する第一の無給電素子 1と、第一の無給電素子 1に近接した カメラモジュール 21近傍の第二の無給電素子 3とを備えている。  As described above, the foldable portable wireless device according to the fifth embodiment of the present invention includes the antenna element 19 mounted in the vicinity of the hinge portion 12 of the lower housing 11 and the hinge of the upper housing 10. A first parasitic element 1 having an electrical length of approximately half wavelength is provided in the vicinity of the portion 12, and a second parasitic element 3 in the vicinity of the camera module 21 adjacent to the first parasitic element 1.
[0115] また、折畳式携帯無線機を開いた状態において第一の無給電素子 1の一端をヘリ カルアンテナ素子 19に近接して配置し、ヘリカルアンテナ素子 19と第一の無給電素 子 1とを電磁的に結合し、第一の無給電素子 1と第二の無給電素子 3とを容量的に結 合する。  [0115] Further, one end of the first parasitic element 1 is arranged close to the helical antenna element 19 in a state in which the folding portable wireless device is opened, and the helical antenna element 19 and the first parasitic element are arranged. 1 is electromagnetically coupled, and the first parasitic element 1 and the second parasitic element 3 are capacitively coupled.
[0116] これにより、人体側頭部や手から離れた第一の無給電素子 1と第二の無給電素子 3 とに電流が分散するため、通話利得が劣化することなく局所的な人体に吸収される 電磁波の比吸収率（SAR)が低く抑えられる。従って、広帯域な低 SAR特性を実現で き、通話状態において高いアンテナ性能を確保することができる。  [0116] As a result, the current is distributed to the first parasitic element 1 and the second parasitic element 3 away from the human head or hand, so that the call gain is not degraded and the local human body is not affected. The specific absorption rate (SAR) of absorbed electromagnetic waves is kept low. Therefore, wide-band low SAR characteristics can be realized, and high antenna performance can be secured in a call state.
[0117] 《第 6の実施の形態》  [0117] <Sixth embodiment>
次に、本発明の第 6の実施の形態の折畳式携帯無線機の開いた状態を図 10に示 す。図 10において、第 1および第 2の実施の形態における折畳式携帯無線機と同一 の構成要素については同一の符号を付して説明を省略する。  Next, FIG. 10 shows an opened state of the folding portable wireless device according to the sixth embodiment of the present invention. In FIG. 10, the same components as those of the folding portable wireless device according to the first and second embodiments are denoted by the same reference numerals, and description thereof is omitted.
[0118] 図 10において、符号 4は導体板で例えば主表示部 14と副表示装置 15とを保持す るための金属製ホルダーで、例えば 50mm X 40mm程度の金属板であり、高い導電率 を有し、かつ軽量で強度が高い金属、例えばマグネシウム合金等であり、第一の無 給電素子 1に近接させて配置する。或いは導体板 4は、上部筐体 10の回路基板等 で構成され、第一の無給電素子 1と近接させて配置する。 In FIG. 10, reference numeral 4 denotes a conductor plate, for example, a metal holder for holding the main display unit 14 and the sub display device 15, for example, a metal plate of about 50 mm × 40 mm, and has a high conductivity. It is a lightweight and high strength metal, such as a magnesium alloy. Place it close to the feed element 1. Alternatively, the conductor plate 4 is composed of a circuit board or the like of the upper housing 10 and is disposed close to the first parasitic element 1.
[0119] すなわち、本発明は、上部筐体 10と下部筐体 11とをヒンジ部 12で連結して開閉自 在な機構を有する折畳式携帯無線機であって、下部筐体 11のヒンジ部 12近傍に搭 載されたへリカルアンテナ素子 19と、上部筐体 10のヒンジ部 12近傍に略半波長の 電気長を有する第一の無給電素子 1と、上部筐体 10の導体板 4とを備えている。  That is, the present invention is a foldable portable wireless device having a mechanism that is openable and closable by connecting the upper housing 10 and the lower housing 11 with the hinge portion 12, and the hinge of the lower housing 11. The helical antenna element 19 mounted in the vicinity of the section 12, the first parasitic element 1 having an electrical length of approximately half wavelength near the hinge section 12 of the upper casing 10, and the conductor plate 4 of the upper casing 10. And.
[0120] また、折畳式携帯無線機を開いた状態において第一の無給電素子 1の一端をヘリ カルアンテナ素子 19に近接して配置すると共に、導体板 4の一端を第一の無給電素 子 1に近接して配置し、ヘリカルアンテナ素子 19と第一の無給電素子 1とを電磁的に 結合し、第一の無給電素子 1と導体板 4とを容量的に結合する。  [0120] In addition, one end of the first parasitic element 1 is disposed close to the helical antenna element 19 in the state in which the foldable portable wireless device is opened, and one end of the conductor plate 4 is connected to the first parasitic element. Arranged close to the element 1, the helical antenna element 19 and the first parasitic element 1 are electromagnetically coupled, and the first parasitic element 1 and the conductor plate 4 are capacitively coupled.
[0121] これにより、人体側頭部や手から離れた第一の無給電素子 1と導体板 4とに電流が 分散するため、通話利得が劣化することなく局所的な人体に吸収される電磁波の比 吸収率（SAR)が低く抑えられ、広帯域な低 SAR特性を実現でき、通話状態において 高いアンテナ性髄を確保することができる。  [0121] As a result, the current is distributed to the first parasitic element 1 and the conductor plate 4 away from the human head or hand, so that the electromagnetic wave absorbed by the local human body without deteriorating the call gain. The specific absorptivity (SAR) is kept low, and a wide-band low SAR characteristic can be realized, and a high antenna marrow can be secured in a call state.
[0122] また、第一の無給電素子 1と導体板 4とが容量的に結合しているため、広帯域な低 SAR特性を実現でき、通話状態において高いアンテナ性能を確保することができる。  [0122] Furthermore, since the first parasitic element 1 and the conductor plate 4 are capacitively coupled, it is possible to realize a wide-band low SAR characteristic and to ensure high antenna performance in a call state.
[0123] 《第 7の実施の形態》  [Seventh embodiment]
次に、本発明の第 7の実施の形態の折畳式携帯無線機について説明する。図 11 は折畳式携帯無線機の開いた状態を示す。  Next, a foldable portable wireless device according to a seventh embodiment of the present invention will be described. Figure 11 shows the folding portable radio in the open state.
[0124] 図 11において、第 4の実施の形態一第 6の実施の形態における折畳式携帯無線 機と同一の構成要素については、同一の符号を付して説明を省略する。  In FIG. 11, the same components as those of the folding portable wireless device according to the fourth embodiment to the sixth embodiment are denoted by the same reference numerals, and description thereof is omitted.
[0125] 図 11において、符号 3はカメラモジュール 21のへリカルアンテナ素子 19側に配置 した、第二の無給電素子であり、 4は導体板で例えば主表示部 14と副表示装置 15と を保持するための金属製ホルダーであり、第二の無給電素子 3と第一の無給電素子 1とに近接させて配置する。  In FIG. 11, reference numeral 3 is a second parasitic element arranged on the helical antenna element 19 side of the camera module 21, and 4 is a conductor plate, which includes, for example, the main display unit 14 and the sub display device 15. It is a metal holder for holding, and is arranged close to the second parasitic element 3 and the first parasitic element 1.
[0126] すなわち、本発明は、上部筐体 10と下部筐体 11とをヒンジ部 12で連結して開閉自 在な機構を有する折畳式携帯無線機であって、下部筐体 11のヒンジ部 12近傍に搭 載されたへリカルアンテナ素子 19と、上部筐体 10のヒンジ部 12近傍に略半波長の 電気長を有する第一の無給電素子 3と、第一の無給電素子 3に近接したカメラモジュ ール 21近傍の第二の無給電素子 3と、上部筐体 10の導体板 4とを備えている。 That is, the present invention is a foldable portable wireless device having a mechanism that is openable and closable by connecting the upper housing 10 and the lower housing 11 with the hinge portion 12, and the hinge of the lower housing 11. The helical antenna element 19 mounted in the vicinity of the part 12 and the substantially half-wavelength in the vicinity of the hinge part 12 of the upper housing 10 A first parasitic element 3 having an electrical length; a second parasitic element 3 near the camera module 21 adjacent to the first parasitic element 3; and a conductor plate 4 of the upper housing 10. ing.
[0127] また、折畳携帯無線機を開いた状態で、第一の無給電素子 1の一端をへリカルァ ンテナ素子 19に近接して配置すると共に、導体板 4の一端を第一の無給電素子 1に 近接して配置し、ヘリカルアンテナ素子 19と第一の無給電素子 3とを電磁的に結合 し、第一の無給電素子 1と第二の無給電素子 3と導体板 4とを容量的に結合させる。  [0127] In addition, with the folded portable wireless device opened, one end of the first parasitic element 1 is arranged close to the helical antenna element 19, and one end of the conductor plate 4 is connected to the first parasitic element. Arranged close to element 1, the helical antenna element 19 and the first parasitic element 3 are electromagnetically coupled, and the first parasitic element 1, the second parasitic element 3 and the conductor plate 4 are connected. Capacitive coupling.
[0128] 以上のように構成された折畳式携帯無線機においては、ヘリカルアンテナ素子 19 と第一の無給電素子 1が電磁結合し、第一の無給電素子 1と第二の無給電素子 3と 導体板 4とが容量的に結合することにより、人体側頭部や手から離れた第一の無給 電素子 1と第二の無給電素子 3と導体板 4に電流が分散する。  In the foldable portable radio device configured as described above, the helical antenna element 19 and the first parasitic element 1 are electromagnetically coupled, and the first parasitic element 1 and the second parasitic element 3 and the conductor plate 4 are capacitively coupled, so that current is distributed to the first parasitic element 1, the second parasitic element 3, and the conductor plate 4, which are separated from the human head or hand.
[0129] 従って、通話利得が劣化することなく局所的な人体に吸収される電磁波の比吸収 率 (SAR)が低く抑えられる。また、広帯域な低 SAR特性を実現でき、通話状態におい て高レ、アンテナ性能を確保することができる。  [0129] Therefore, the specific absorption rate (SAR) of electromagnetic waves absorbed by the local human body without deterioration of the call gain can be kept low. In addition, wide-band low SAR characteristics can be realized, and high communication and antenna performance can be ensured in a call state.
産業上の利用可能性  Industrial applicability
[0130] 本発明は、使用者の側頭部等の影響を受けずに所望の性能を発揮する折畳式携 帯無線機用アンテナとして好適である。 The present invention is suitable as an antenna for a foldable portable radio device that exhibits desired performance without being affected by the user's temporal region or the like.
[0131] また、本発明は、通話のために折畳式携帯無線機を開くだけで、第一の無給電素 子とアンテナ素子とが電磁結合し、第一の無給電素子と 1個以上の無給電素子とが 容量結合して、人体側頭部や手から離れた第一の無給電素子と 1個以上の無給電 素子とに電流が分散する。 [0131] Further, according to the present invention, the first parasitic element and the antenna element are electromagnetically coupled simply by opening the folding portable radio device for a call, and the first parasitic element and one or more The parasitic elements are capacitively coupled to each other, and current is distributed to the first parasitic element and one or more parasitic elements that are separated from the human head or hand.
[0132] 従って、通話利得が劣化することなぐ広帯域な低 SAR特性を実現し、通話状態に ぉレ、て高レ、アンテナ性能を確保できるとレ、う効果を有し、受話部を備えた上部筐体と 送話部とを備えた下部筐体とをヒンジ部で連結して開閉自在な機構を有する折畳式 携帯無線機等として有用である。 [0132] Therefore, it is possible to realize a wide-band low SAR characteristic without degrading the call gain, and to have a high effect and high antenna performance in a call state. It is useful as a foldable portable wireless device or the like having a mechanism that can be opened and closed by connecting an upper housing and a lower housing provided with a transmitter with a hinge.

Claims

請求の範囲 The scope of the claims
[1] 上部筐体及び下部筐体の長手方向一端をヒンジ部を介して回動自在に連結し、通 話時では開いて展開した状態で使用できるようにした折畳式携帯無線機において、 展開したときに前記下部筐体の長手方向の前記ヒンジ部側の端部に設けられるアン テナ素子と電磁結合が可能となる略半波長の電気長を有する線状の無給電素子を 前記上部筐体の長手方向の前記ヒンジ部側の端部に設けたことを特徴とする折畳式 携帯無線機。  [1] In a folding portable wireless device in which one end in the longitudinal direction of the upper and lower housings is pivotally connected via a hinge part so that it can be used in an open and unfolded state when talking. A linear parasitic element having a substantially half-wave electrical length that enables electromagnetic coupling with an antenna element provided at an end of the lower casing in the longitudinal direction of the lower casing when unfolded. A foldable portable wireless device provided at an end of the body in the longitudinal direction on the hinge side.
[2] 下部筐体に設けられる前記アンテナ素子は、ヘリカルアンテナ素子またはミアンダ アンテナ素子であり、展開したときに、前記無給電素子は、その主要部の配置方向が 前記へリカルアンテナ素子またはミアンダアンテナ素子の軸方向と略平行となるよう に配置されていることを特徴とする請求項 1記載の折畳式携帯無線機。  [2] The antenna element provided in the lower housing is a helical antenna element or a meander antenna element. When deployed, the parasitic element has an arrangement direction of a main part of the helical antenna element or the meander antenna. 2. The foldable portable radio device according to claim 1, wherein the foldable portable radio device is arranged so as to be substantially parallel to an axial direction of the element.
[3] 前記無給電素子は、上部筐体の短手方向に沿って配置される主素子片と、この主 素子片の両端側において電気的に接続されて上部筐体の長手方向一端側に向か つて配置される略等長の副素子片とで構成され、展開したときに前記副素子片のー 方が下部筐体に設けられる前記アンテナ素子と電磁結合し、前記副素子片の他方 力開放端となることを特徴とする請求項 1又は請求項 2記載の折畳式携帯無線機。  [3] The parasitic element is electrically connected to the main element piece arranged along the short side direction of the upper casing and the both ends of the main element piece, and is connected to one end side in the longitudinal direction of the upper casing. A sub-element piece of substantially equal length arranged in the opposite direction, and when deployed, one side of the sub-element piece is electromagnetically coupled to the antenna element provided in the lower housing, and the other of the sub-element pieces The foldable portable wireless device according to claim 1 or 2, wherein the foldable portable radio device is a force-released end.
[4] 前記無給電素子において、前記主素子片の両端側に配置される前記副主素子片 は、それぞれミアンダ状に形成されていることを特徴とする請求項 3記載の折畳式携 帯無線機。  [4] The foldable mobile phone according to claim 3, wherein in the parasitic element, the sub-main element pieces disposed on both ends of the main element piece are each formed in a meander shape. transceiver.
[5] 前記無給電素子は、下部筐体に設けられる前記アンテナ素子と対応する前記上部 筐体の短手方向一端側において上部筐体の長手方向に沿って直線状に配置され ていることを特徴とする請求項 1又は請求項 2記載の折畳式携帯無線機。  [5] The parasitic element is arranged linearly along the longitudinal direction of the upper casing at one end in the short direction of the upper casing corresponding to the antenna element provided in the lower casing. The foldable portable wireless device according to claim 1 or claim 2, wherein
[6] 前記無給電素子は、上部筐体の短手方向に沿って配置される主素子片と、この主 素子片の一端側であって下部筐体に設けられる前記アンテナ素子と対応する片端 側において上部筐体の長手方向一端側に向かって配置される副素子片とで構成さ れることを特徴とする請求項 1又は請求項 2記載の折畳式携帯無線機。 [6] The parasitic element includes a main element piece disposed along a short direction of the upper casing, and one end corresponding to the antenna element provided on the lower casing on one end side of the main element piece. 3. The foldable portable wireless device according to claim 1, further comprising: a sub-element piece arranged toward one end side in the longitudinal direction of the upper housing.
[7] 前記無給電素子は、導電性の薄膜や線材で形成され上部筐体を構成する樹脂製 ケースの内面または外面に貼付する方法で、上部筐体の背面側であって展開したと きに下部筐体に設けられる前記アンテナ素子と近接する位置に配置されていることを 特徴とする請求項 1又は請求項 2記載の折畳式携帯無線機。 [7] The parasitic element is developed on the back side of the upper casing by a method of attaching to the inner or outer surface of a resin case that is formed of a conductive thin film or wire and constitutes the upper casing. 3. The foldable portable wireless device according to claim 1, wherein the foldable portable wireless device is disposed at a position close to the antenna element provided in the lower casing.
[8] 前記無給電素子の主素子片は、その中央位置を前記上部筐体の短手方向中央位 置に合わせて配置されていることを特徴とする請求項 3又は請求項 4記載の折畳式 携帯無線機。 [8] The folding device according to claim 3 or 4, wherein the main element piece of the parasitic element is arranged so that a center position thereof is aligned with a center position in a short direction of the upper casing. Tatami portable radio.
[9] 上部筐体と下部筐体とをヒンジ部で連結することにより、前記上部筐体と前記下部 筐体とが開閉自在な機構を有する折畳式携帯無線機であって、  [9] A foldable portable wireless device having a mechanism in which the upper housing and the lower housing can be opened and closed by connecting the upper housing and the lower housing with a hinge portion,
前記下部筐体の前記ヒンジ部近傍に搭載されたアンテナ素子と、  An antenna element mounted near the hinge portion of the lower housing;
前記上部筐体の前記ヒンジ部近傍に略半波長の電気長を有する第一の無給電素 子と、  A first parasitic element having an electrical length of approximately half a wavelength near the hinge portion of the upper casing;
前記上部筐体に前記第一の無給電素子に近接した 1個以上の無給電素子を備え 前記上部筐体と前記下部筐体とを開いた状態で、前記第一の無給電素子の一端 を前記アンテナ素子に近接させて配置し、  One or more parasitic elements close to the first parasitic element are provided in the upper casing, and one end of the first parasitic element is opened with the upper casing and the lower casing open. Arranged close to the antenna element,
前記アンテナ素子と前記第一の無給電素子を電磁的に結合させ、  Electromagnetically coupling the antenna element and the first parasitic element;
前記第一の無給電素子と前記 1個以上の無給電素子を電磁的に結合させることを 特徴とする折畳式携帯無線機。  A foldable portable radio device, wherein the first parasitic element and the one or more parasitic elements are electromagnetically coupled.
[10] 前記 1個以上の無給電素子を、前記第一の無給電素子に近接する前記上部筐体 のカメラモジュール部に配置した第二の無給電素子とすることを特徴とする請求項 9 記載の折畳式携帯無線機。 10. The one or more parasitic elements is a second parasitic element disposed in the camera module portion of the upper casing adjacent to the first parasitic element. The foldable portable wireless device described.
[11] 前記 1個以上の無給電素子を、前記第一の無給電素子に近接する前記上筐体の 導体板とすることを特徴とする請求項 9記載の折畳式携帯無線機。 11. The foldable portable wireless device according to claim 9, wherein the one or more parasitic elements are conductive plates of the upper casing close to the first parasitic element.
[12] 前記 1個以上の無給電素子を、前記第一の無給電素子に近接する前記上筐体の 第二の無給電素子と、前記導体板とすることを特徴とする請求項 9記載の折畳式携 帯無線機。 12. The one or more parasitic elements as the second parasitic element of the upper casing close to the first parasitic element and the conductor plate according to claim 9, Foldable portable radio.
[13] 前記 1個以上の無給電素子を前記第一の無給電素子に略平行に近接させることを 特徴とする請求項 9記載の折畳式携帯無線機。  13. The folding portable wireless device according to claim 9, wherein the one or more parasitic elements are brought close to the first parasitic element substantially in parallel.
[14] 前記アンテナ素子としてへリカルアンテナ素子またはミアンダアンテナ素子を用レ、、 前記へリカルアンテナ素子または前記ミアンダアンテナ素子の軸方向と前記第一の 無給電素子の一部とを、略平行に配置することにより電磁的に結合させることを特徴 とする請求項 9から 13の何れかに記載の折畳式携帯無線機。 [14] A helical antenna element or a meander antenna element is used as the antenna element, The axial direction of the helical antenna element or the meander antenna element and a part of the first parasitic element are electromagnetically coupled by disposing them substantially in parallel. The foldable portable wireless device according to any one of the above.
前記上部筐体を構成する樹脂製カバーの前記アンテナ素子に近接する面に、前 記第一の無給電素子を配置することを特徴とする請求項 9から 14の何れかに記載の 折畳式携帯無線機。  The foldable type according to any one of claims 9 to 14, wherein the first parasitic element is disposed on a surface of the resin cover constituting the upper housing close to the antenna element. Portable radio.
PCT/JP2005/001115 2004-07-23 2005-01-27 Folding portable wireless apparatus WO2006011254A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2004215582A JP2006041689A (en) 2004-07-23 2004-07-23 Foldable mobile wireless apparatus
JP2004-215582 2004-07-23
JP2004303346A JP2006115419A (en) 2004-10-18 2004-10-18 Folding portable wireless apparatus
JP2004-303346 2004-10-18

Publications (1)

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PCT/JP2005/001115 WO2006011254A1 (en) 2004-07-23 2005-01-27 Folding portable wireless apparatus

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Publication number Priority date Publication date Assignee Title
US10181648B2 (en) 2016-04-12 2019-01-15 Microsoft Technology Licensing, Llc Self-adaptive antenna system for reconfigurable device
US10193213B2 (en) 2015-10-14 2019-01-29 Microsoft Technology Licensing, Llc Self-adaptive antenna systems for electronic devices having multiple form factors
CN111770220A (en) * 2020-06-24 2020-10-13 Oppo广东移动通信有限公司 Electronic device
WO2021014819A1 (en) * 2019-07-25 2021-01-28 Ｎｅｃプラットフォームズ株式会社 Wireless apparatus

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JP2003110329A (en) * 2001-07-25 2003-04-11 Matsushita Electric Ind Co Ltd Built-in antenna device
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JP2002504768A (en) * 1998-02-20 2002-02-12 クゥアルコム・インコーポレイテッド Substrate antenna incorporating elements that prevent energy coupling between antenna and conductor
JP2001284933A (en) * 2000-03-28 2001-10-12 Kyocera Corp Portable radio equipment
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Publication number Priority date Publication date Assignee Title
US10193213B2 (en) 2015-10-14 2019-01-29 Microsoft Technology Licensing, Llc Self-adaptive antenna systems for electronic devices having multiple form factors
US10181648B2 (en) 2016-04-12 2019-01-15 Microsoft Technology Licensing, Llc Self-adaptive antenna system for reconfigurable device
WO2021014819A1 (en) * 2019-07-25 2021-01-28 Ｎｅｃプラットフォームズ株式会社 Wireless apparatus
JP2021022779A (en) * 2019-07-25 2021-02-18 Ｎｅｃプラットフォームズ株式会社 Radio equipment
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CN111770220A (en) * 2020-06-24 2020-10-13 Oppo广东移动通信有限公司 Electronic device
CN111770220B (en) * 2020-06-24 2021-09-28 Oppo广东移动通信有限公司 Electronic device

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