WO2001082407A1 - Dispositif radio portable - Google Patents

Dispositif radio portable Download PDF

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Publication number
WO2001082407A1
WO2001082407A1 PCT/JP2000/002607 JP0002607W WO0182407A1 WO 2001082407 A1 WO2001082407 A1 WO 2001082407A1 JP 0002607 W JP0002607 W JP 0002607W WO 0182407 A1 WO0182407 A1 WO 0182407A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
flip
portable wireless
power supply
wireless device
Prior art date
Application number
PCT/JP2000/002607
Other languages
English (en)
Japanese (ja)
Inventor
Hideaki Shoji
Yasuhito Imanishi
Toru Fukasawa
Hiroyuki Ohmine
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to CN00809254.0A priority Critical patent/CN1357162A/zh
Priority to PCT/JP2000/002607 priority patent/WO2001082407A1/fr
Priority to EP00917400A priority patent/EP1289049A1/fr
Publication of WO2001082407A1 publication Critical patent/WO2001082407A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/24—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the orientation by switching energy from one active radiating element to another, e.g. for beam switching
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H01Q1/244—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas extendable from a housing along a given path
    • 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
    • H01Q19/005—Patch antenna using one or more coplanar parasitic elements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole

Definitions

  • the present invention relates to a portable wireless device, and more particularly, to a portable wireless device provided with two types of antennas.
  • the portable wireless device disclosed in this document includes a whip antenna provided to be freely inserted into and removed from a housing, and a small antenna built in the housing.
  • the whip antenna When communicating with a remote location, the whip antenna is pulled out of the housing and connected to the transmission / reception circuit to perform communication. Connect and communicate.
  • An object of the present invention is to suppress efficiency degradation due to antenna coupling in a portable wireless device having two types of antennas.
  • a portable wireless device includes a housing, a linear first antenna that can be pulled out of the housing, and a flat second antenna built in the housing and connected to a ground substrate.
  • An antenna and a power supply unit for exciting at least one of the first and second antennas.
  • the inventor of the present application has concluded that in a portable wireless device having two types of antennas, the connection of the antenna In order to suppress the efficiency degradation due to the combination, the combination of the first linear antenna and the second flat antenna connected to the ground substrate reduces the coupling between them as shown in Fig. 7. I learned that. As a result, a decrease in efficiency due to interference between antennas can be suppressed.
  • the portable wireless device preferably includes switching means between the first and second antennas and the power supply means.
  • the switching means may connect the first antenna to the feeding means when the first antenna is pulled out, and may connect the second antenna to the feeding means when the first antenna is stored.
  • the switching means connects both the first antenna and the second antenna to the feeding means when the first antenna is pulled out, and connects the second antenna and the feeding means when the first antenna is stored. There may be.
  • the switching means connects both the first antenna and the second antenna to the feeding means when the first antenna is pulled out, and feeds both the first and second antennas when the first antenna is stored. It may be one that connects the means.
  • the switching means may connect the first antenna to the feeding means when the first antenna is pulled out, and may connect both the first and second antennas to the feeding means when the first antenna is stored. Good.
  • the first antenna preferably includes a monopole antenna having a length that is an integral multiple of one-half wavelength, and the second antenna preferably includes a patch antenna. Further, the first antenna may include a helical antenna arranged in series with the monopole antenna.
  • the first antenna is tilted to the side opposite to the human body. This can reduce the performance degradation of the antenna due to the human body.
  • a portable wireless device in another aspect, includes a housing having a flip, a first antenna installed on the flip, and a flat second antenna built in the housing and connected to a ground substrate. And a power supply means for exciting at least one of the first and second antennas.
  • the above-mentioned portable wireless device preferably includes switching means between the first and second antennas and the power supply means.
  • the switching means may be configured to connect the first antenna and the power supply means when the flip is opened, and to connect the second antenna and the power supply means when the flip is closed.
  • the switching means may connect both the first antenna and the second antenna to the feeding means when the flip is opened, and may connect the second antenna and the feeding means when the flip is closed. .
  • the switching means connects both the first antenna and the second antenna to the feeding means when the flip is opened, and connects both the first antenna and the second antenna to the feeding means when the flip is closed. May be used.
  • the switching means may connect the first antenna to the feeding means when the flip is opened, and may connect both the first antenna and the second antenna to the feeding means when the flip is closed.
  • FIG. 1A is a schematic configuration diagram of a portable wireless device according to Embodiment 1 of the present invention.
  • FIG. 1B is a side view of the portable wireless device of FIG. 1A.
  • FIG. 1C is an equivalent circuit diagram of the portable wireless device of FIG. 1A.
  • FIG. 1D is an equivalent circuit diagram of the portable wireless device of FIG. 1A.
  • FIG. 1E is a side view of the built-in antenna of the portable wireless device of FIG. 1A.
  • FIG. 2A is a schematic configuration diagram of a portable wireless device according to Embodiment 2 of the present invention.
  • FIG. 2B is a side view of the portable wireless device of FIG. 2A.
  • 3A and 3B are equivalent circuit diagrams of the portable wireless device according to Embodiment 3 of the present invention.
  • 4A and 4B are schematic configuration diagrams of a portable wireless device according to Embodiment 4 of the present invention.
  • 5A and 5B are schematic configuration diagrams of a portable wireless device according to Embodiment 5 of the present invention. It is.
  • 6A and 6B are schematic configuration diagrams of a portable wireless device according to Embodiment 6 of the present invention.
  • FIG. 7 is a diagram showing the results of antenna coupling measurement in the portable wireless device of the present invention.
  • FIGS. 1A to 1D are views showing a portable radio device 1 such as a portable radio telephone and a modification example thereof according to Embodiment 1 of the present invention.
  • FIG. 1E is a side view of the built-in antenna of FIG. 1A.
  • the portable wireless device 1 includes a housing 2, a first antenna 3, a second antenna 4, a switching switch 5, and a power supply unit 6.
  • a ground substrate 13 is incorporated in the housing 2, and the second antenna 4 is mounted on the substrate 13.
  • the first antenna 3 is preferably a monopole antenna, and can be put in and out of the housing 2.
  • the length L 1 of the first antenna 3 is an integer (1 or more) times the half wavelength ( ⁇ ). As a result, it is possible to suppress the current flowing to the housing 2 at the time of drawing out.
  • the second antenna 4 is built in the housing 2 and is preferably a short patch antenna.
  • the second antenna 4 has a rectangular planar shape in the mode shown in FIG. 1A, and has a short-circuit plate 12 at one end 4a as shown in FIG. 1E, and a substrate via the short-circuit plate 12 Connected to Yu 3.
  • the length L 2 of the second antenna 4 in the width direction of the housing 2 is, for example, L Z 4.
  • the inventor of the present application has proposed that the combination of the linear first antenna 3 as described above and the flat plate-shaped second antenna 4 connected to the ground substrate 13 allows the antenna to be closer to + minutes than the wavelength. As shown in Fig. 7, it was found that the coupling between them in the used band was small (about 120 dB to 130 dB), despite the distance. Thereby, a decrease in efficiency due to interference between antennas can be suppressed.
  • the portion parallel to the ground substrate 13 is formed. Radiated from the current flowing through the short-circuit plate 12 and the current flowing through the short-circuit plate 12, and in the plane that includes both the direction normal to the surface of the substrate and the direction in which the rectangular plate-like shape looks to the feed point side from the short-circuit plate 12. Omnidirectionality is obtained.
  • the second antenna 4 has no directivity in a plane orthogonal to the longitudinal direction of the S case, and The polarization is orthogonal to the longitudinal direction of the housing. Therefore, when the antenna is attached to the human body at an angle, the polarization ⁇ becomes substantially perpendicular to the ground, and the polarization matching with the vertically polarized base station is improved.
  • the second antenna 4 may be arranged vertically as shown in FIG. 1D.
  • the second antenna 4 becomes omnidirectional in a plane including both the longitudinal direction of the housing and the normal direction to the surface of the substrate, and the polarization plane becomes parallel to the longitudinal direction of the housing. . Therefore, when operating the terminal while looking at the data display unit or the like on the housing, good polarization matching with the vertically polarized base station is always obtained regardless of the tilt angle.
  • the short-circuit point of the second antenna 4 shown in FIG. 1D may be either upper or lower.
  • the shape of the second antenna 4 can be arbitrarily selected as long as a desired electric field can be generated between the second antenna 4 and the substrate 13. Further, a flat antenna such as a patch antenna can be adopted as the built-in antenna of the present invention.
  • the switching switch 5 selectively connects the first antenna 3 and the second antenna 4 to the feeding means 6 via the contacts 11a and 11b. Thereby, the first antenna 3 and the second antenna 4 can be selectively excited.
  • the first antenna 3 when the first antenna 3 is pulled out, the first antenna 3 is connected to the power supply means 6, and when the first antenna 3 is stored, the second antenna 4 is connected to the power supply means. Means 6 is connected.
  • the first antenna 3 when the first antenna 3 is pulled out, communication can be performed by the first antenna 3, and when the first antenna 3 is stored, communication can be performed by the second antenna 4.
  • the first antenna 3 preferably extends in a direction opposite to the human body side 7. This can reduce the performance degradation of the antenna due to the human body.
  • a flip 8 is provided on the housing 2 so as to be openable and closable, and the first antenna 3 is provided on the flip 8.
  • the other configuration is the same as the example shown in FIG. 1A.
  • the coupling between the first and second antennas 3 and 4 is reduced, and a decrease in efficiency due to interference between antennas can be suppressed. It is inferred.
  • the first antenna 3 is typically built in the flip 8.
  • a method of installing the first antenna 3 on the flip 8 for example, the method described in Japanese Patent Application Laid-Open No. 8-186658 can be adopted.
  • the switching switch 5 connects the feeding means 6 to the first antenna 3 when the flip 8 is opened, and connects the feeding means 6 to the second antenna 4 when the flip 8 is closed. Thereby, communication can be performed by the first antenna 3 when the flip 8 is opened, and communication can be performed by the second antenna 4 when the flip 8 is closed.
  • the flip 8 preferably extends in a direction opposite to the human body J 7 when the flip 8 is opened. Thereby, the first antenna 3 can be separated from the human body.
  • FIG. 3A shows a state when the first antenna 3 is excited
  • FIG. 3B shows a state when the second antenna 4 is excited.
  • switching switches 9 and 10 are provided. Then, as shown in FIG. 3A, for example, when the first antenna 3 is pulled out, the first antenna 3 is excited and the second antenna 4 is connected to the load impedance Z2. Thereby, the phase of the reflected wave by the second antenna 4 can be controlled, and the deformation of the beam of the first antenna 3 and the decrease in efficiency can be suppressed.
  • the second antenna 4 is While exciting, the first antenna 3 is connected to the load impedance Z1. Also in this case, deformation of the beam of the 27th antenna 3 and reduction in efficiency can be suppressed.
  • the idea of the third embodiment can be applied to the portable radio shown in FIGS. 2A and 2B. In this case, when the flip 8 is opened, the first antenna 3 is excited, while the second antenna 4 is connected to the load impedance Z2, and when the flip 8 is closed, the second antenna 4 is excited. The first antenna 3 is connected to the load impedance Z1.
  • FIGS. 4A and 4B Next, a fourth embodiment of the present invention will be described with reference to FIGS. 4A and 4B.
  • first antenna 3 has monopole antenna 3a and helical antenna 3b.
  • the monopole antenna 3a and the helical antenna 3b are arranged in series.
  • the monopole antenna 3a when the monopole antenna 3a is pulled out, the monopole antenna 3a can be used, and when the monopole antenna 3a is stored, the helical antenna 3b can be used.
  • the second antenna 4 is excited both when the monopole antenna 3a is pulled out and when it is stored. Therefore, when the monopole antenna 3a is pulled out, both the monopole antenna 3a and the second antenna 4 are excited, and when the monopole antenna 3a is retracted, both the helical antenna 3b and the second antenna 4 are excited. It will be.
  • the antenna of the present invention since the coupling between the first and second antennas 3 and 4 is kept low, it is possible to design a feeder circuit for exciting the two antennas 3 and 4 separately from the antennas. The ease of design is improved. Further, by exciting the first and second antennas 3 and 4 simultaneously, the polarization can be freely changed.
  • the excitation method when the first and second antennas 3 and 4 are excited simultaneously will be described with reference to FIG. 4A.
  • the power for exciting the first antenna 3 is V
  • the power for exciting the second antenna 4 is H.
  • V / H ratio V: H
  • ⁇ ': 11 0.5: 0.5, 45-degree polarization
  • ⁇ ': 11 0.5: 0.5, 45-degree polarization
  • the polarization can be freely changed by controlling the ratio between the powers V and H.
  • Embodiment 4 can be applied to the portable wireless devices shown in FIGS. 2A and 2B.
  • the first and second antennas 3 and 4 are simultaneously excited when the flip 8 is opened or closed.
  • FIGS. 5A and 5B Next, a fifth embodiment of the present invention will be described with reference to FIGS. 5A and 5B.
  • Embodiment 5 only the first antenna 3 is excited when the first antenna 3 is pulled out, and the helical antenna 3 b and the second Both antennas 4 are excited.
  • the same effect as in the fourth embodiment is obtained. Is obtained.
  • the concept of the fifth embodiment can be applied to the portable wireless devices shown in FIGS. 2A and 2B. In this case, only the first antenna 3 is excited when the flip 8 is opened, and the first and second antennas 3 and 4 are excited when the flip 8 is closed.
  • FIGS. 6A and 6B Next, a sixth embodiment of the present invention will be described with reference to FIGS. 6A and 6B.
  • both the first antenna 3 and the second antenna 4 are excited, and when the first antenna 3 is stored, Only the second antenna 4 is excited.
  • the same effect as in the fourth embodiment is obtained. Is obtained. Note that the idea of the sixth embodiment can be applied to the portable wireless devices shown in FIGS. 2A and 2B. In this case, when the flip 8 is opened, the first and second antennas 3 and 4 are excited, and when the flip 8 is closed, only the second antenna 4 is excited.
  • the present invention can be effectively applied to a portable wireless device having two or more types of antennas.

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

Abstract

L'invention concerne un dispositif radio portable qui comprend un boîtier (2), une première antenne (3) pouvant être sortie du boîtier (2), une seconde antenne (4), planaire, qui est intégrée dans le boîtier (2) et connectée à un plan de masse (13), et des moyens d'alimentation (6) servant à fournir de l'énergie à la première et/ou la seconde antenne (3, 4).
PCT/JP2000/002607 2000-04-20 2000-04-20 Dispositif radio portable WO2001082407A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN00809254.0A CN1357162A (zh) 2000-04-20 2000-04-20 便携式无线机
PCT/JP2000/002607 WO2001082407A1 (fr) 2000-04-20 2000-04-20 Dispositif radio portable
EP00917400A EP1289049A1 (fr) 2000-04-20 2000-04-20 Dispositif radio portable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2000/002607 WO2001082407A1 (fr) 2000-04-20 2000-04-20 Dispositif radio portable

Publications (1)

Publication Number Publication Date
WO2001082407A1 true WO2001082407A1 (fr) 2001-11-01

Family

ID=11735950

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2000/002607 WO2001082407A1 (fr) 2000-04-20 2000-04-20 Dispositif radio portable

Country Status (3)

Country Link
EP (1) EP1289049A1 (fr)
CN (1) CN1357162A (fr)
WO (1) WO2001082407A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20140115231A (ko) 2013-03-20 2014-09-30 삼성전자주식회사 안테나, 사용자 단말 장치, 및 안테나 제어 방법

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142148U (ja) * 1984-08-23 1986-03-18 三菱電機株式会社 携帯無線機
JPH0725673U (ja) * 1993-10-14 1995-05-12 京セラ株式会社 携帯形無線機
JPH07202774A (ja) * 1993-12-28 1995-08-04 Toshiba Corp 無線装置
US5561436A (en) * 1994-07-21 1996-10-01 Motorola, Inc. Method and apparatus for multi-position antenna
US5649306A (en) * 1994-09-16 1997-07-15 Motorola, Inc. Portable radio housing incorporating diversity antenna structure
JPH09294103A (ja) * 1996-04-25 1997-11-11 Sony Corp アンテナ装置及び携帯無線機
JPH11177485A (ja) * 1997-12-16 1999-07-02 Nec Saitama Ltd 携帯電話機
JPH11274828A (ja) * 1998-03-18 1999-10-08 Tokin Corp 携帯通信端末とそのアンテナ装置
JP2000049649A (ja) * 1998-07-24 2000-02-18 Matsushita Electric Ind Co Ltd アンテナ装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6142148U (ja) * 1984-08-23 1986-03-18 三菱電機株式会社 携帯無線機
JPH0725673U (ja) * 1993-10-14 1995-05-12 京セラ株式会社 携帯形無線機
JPH07202774A (ja) * 1993-12-28 1995-08-04 Toshiba Corp 無線装置
US5561436A (en) * 1994-07-21 1996-10-01 Motorola, Inc. Method and apparatus for multi-position antenna
US5649306A (en) * 1994-09-16 1997-07-15 Motorola, Inc. Portable radio housing incorporating diversity antenna structure
JPH09294103A (ja) * 1996-04-25 1997-11-11 Sony Corp アンテナ装置及び携帯無線機
JPH11177485A (ja) * 1997-12-16 1999-07-02 Nec Saitama Ltd 携帯電話機
JPH11274828A (ja) * 1998-03-18 1999-10-08 Tokin Corp 携帯通信端末とそのアンテナ装置
JP2000049649A (ja) * 1998-07-24 2000-02-18 Matsushita Electric Ind Co Ltd アンテナ装置

Also Published As

Publication number Publication date
CN1357162A (zh) 2002-07-03
EP1289049A1 (fr) 2003-03-05

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