WO1997019488A1 - Antenne - Google Patents

Antenne Download PDF

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Publication number
WO1997019488A1
WO1997019488A1 PCT/JP1996/003315 JP9603315W WO9719488A1 WO 1997019488 A1 WO1997019488 A1 WO 1997019488A1 JP 9603315 W JP9603315 W JP 9603315W WO 9719488 A1 WO9719488 A1 WO 9719488A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
conductor
antenna element
helical
extended
Prior art date
Application number
PCT/JP1996/003315
Other languages
English (en)
Japanese (ja)
Inventor
Mitsuya Makino
Original Assignee
Nippon Antena 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 Nippon Antena Kabushiki Kaisha filed Critical Nippon Antena Kabushiki Kaisha
Priority to EP96937561A priority Critical patent/EP0805506A1/fr
Publication of WO1997019488A1 publication Critical patent/WO1997019488A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system

Definitions

  • the present invention relates to an antenna slidably provided in a housing, and is particularly suitable for being applied to a portable radio telephone.
  • FIG. 5 (A) and 5 (B) An outline of this type of conventional antenna is shown in Figs. 5 (A) and 5 (B).
  • an insulating portion 106 is provided on the element conductor 103 as described in Japanese Patent Application Laid-Open No. 6-216630.
  • Antenna element and a helical element 104 The antenna element can be housed in the housing 100 by sliding inside the helical element 104, and the housed antenna element can be extended from the housing 100.
  • the helical element 104 is fixedly provided in the upper projecting portion of the housing 100.
  • FIG. 5 (A) The state where the antenna element of such an antenna is extended by sliding is shown in (a) of FIG. 5 (A).
  • a signal from the signal source 102 in the housing 100 is supplied to the power supply unit 105 via the matching circuit (MC) 101.
  • the power supply section 105 is electrically connected to the lower end of the element conductor 103 and the lower end of the helical element 104, and the element conductor 103 and the helical element 104 are brought into an operating state.
  • the state where the antenna element is slid and housed in the housing 100 is shown in FIG.
  • the signal from the signal source 102 in the housing 100 is supplied to the power supply unit 105 through the matching circuit (MC) 101, but the power supply unit 105 is The helical element is electrically connected to only the lower end of the cull element 104. Only 104 is in operation.
  • the insulating part 106 formed on the upper part of the antenna element is located within the helical element 104 so that the antenna element does not affect the helical element 104. .
  • Fig. 5 (B) shows an outline of a conventional Evening B antenna with a different configuration from the above-mentioned antenna.
  • this antenna has an antenna element in which an insulating portion 106 is provided on the upper and lower portions of a coil-shaped element conductor 103. And helical element 104.
  • the antenna element can be housed in the housing 100 by sliding inside the helical element 104, and the housed antenna element can be extended from the housing 100.
  • the helical element 104 is fixedly provided in the upper protruding portion of the housing.
  • the state where the antenna element of such an antenna is extended by sliding is shown in (a) of FIG. 5 (B).
  • the signal from the signal source 102 in the housing 100 is supplied to the power supply unit 105 via the matching circuit (MC) 101.
  • the power supply section 105 is electrically connected to the lower end of the helical element 104, and the helical element 104 is excited. Since the helical element 104 and the coil-shaped element conductor 103 are inductively coupled, when the helical element 104 is excited, the inductively coupled element conductor 103 is also excited. become.
  • the antenna element and the helical element 104 are brought into an operating state. At this time, the insulating portion 106 formed below the antenna element is located in the helical element 104.
  • the state where the antenna element is slid and housed in the housing 100 is shown in FIG.
  • the signal from the signal source 102 in the housing 100 is supplied to the power supply unit 105 via the matching circuit (MC) 101, and is connected to the power supply unit 105.
  • the helical element 104 is brought into operation.
  • the coil-shaped element conductor 103 is housed in the housing 100 and is in a non-operating state.
  • the insulating part 106 formed on the upper part of the antenna element is located in the helical element 104 so that the antenna element does not affect the helical element 104.
  • the operation of the antenna will be described.
  • the element conductor 103 and the helical element 104 are connected in parallel.
  • the helical element 104 has a function of increasing the equivalent thickness of the element conductor 103, and as a result, the frequency-impedance characteristic shows a wider band than the element conductor 103 alone.
  • the characteristics of the frequency-to-voltage standing wave ratio (VSWR) at this time are shown as type A in Fig. 3 (a), but the resonance frequencies of the helical element 104 and the element conductor 103 are set to be the same. Therefore, a single resonance characteristic is obtained.
  • the characteristic of the frequency vs. V SWR at this time is a single resonance characteristic as shown as types A and B in FIG. 3 (b).
  • the helical element 104 when the antenna element is extended, the helical element 104 is connected to the feeding unit. At this time, the helical element 104 is inductively coupled to the element conductor 103, which is a parasitic element, and provides high-frequency excitation to the element conductor 103.
  • the characteristics of the frequency to voltage standing wave ratio (VS WR) at this time are shown as type B in Fig. 3 (a), but the resonance frequencies of the helical element 104 and the element conductor 103 are set to be the same. Therefore, a single resonance characteristic is obtained.
  • the transmission band of the mobile station and the reception band of the mobile station are assigned to different frequency bands. Therefore, it is necessary for the antenna of the mobile phone to have characteristics that cover the transmission band and the reception band.
  • the conventional type A and type B antennas exhibit single resonance characteristics when both extended and retracted, so that favorable characteristics covering the transmission band and the reception band can be obtained. There was a problem that not.
  • an object of the present invention is to provide an antenna that can cover a transmission band and a reception band assigned to different frequency bands when the antenna is expanded and stored. Disclosure of the invention
  • an antenna according to the present invention includes an antenna element having an upper conductor portion above an element conductor via an insulating portion, and an antenna having a helical element.
  • the lower end of the antenna element is used as a feeding portion, and when the antenna element is housed, the helical antenna is extended.
  • the upper end of the element is connected to the upper end of the upper conductor, and the lower end of the upper conductor serves as a power supply.
  • the antenna element is slidable in a holder conductor connected to a circuit in the housing, and when the antenna element is extended, a lower end of the antenna element is connected to the holder conductor.
  • the lower portion of the upper conductor portion and the holder conductor are connected in a state where the antenna element is housed,
  • the antenna element when extended and stored, the antenna The element and the helical element operate as a two-resonance antenna.
  • the antenna consisting of the antenna element and the helical element performs two resonance operations, so that the transmission band and the reception band respectively assigned to different frequency bands are extended and retracted.
  • the characteristics of the antenna that can cover the band can be obtained.
  • FIG. 1 (a) is a diagram showing an outline of the configuration of the antenna of the present invention at the time of extension
  • FIG. 1 (b) is a diagram showing the antenna of the present invention at the time of storage
  • FIG. 3 is a diagram showing an outline of a configuration.
  • FIG. 2 (a) is a diagram showing a detailed configuration example of the antenna of the present invention at the time of extension
  • FIG. 2 (b) is a diagram showing the antenna of the present invention at the time of storage
  • FIG. 3 is a diagram illustrating a detailed configuration example.
  • FIG. 3 (a) is a diagram showing the characteristics of the frequency vs. VSWR when the antenna of the present invention and the conventional antenna are expanded.
  • FIG. 3 (b) is a diagram showing the characteristics of the antenna of the present invention and the conventional antenna.
  • FIG. 7 is a diagram showing characteristics of frequency vs. VS WR when the is stored.
  • FIG. 4 is a diagram showing another example of the detailed configuration of the embodiment of the antenna of the present invention.
  • FIG. 5 (A) is a diagram showing an outline of a configuration of a conventional type A antenna
  • FIG. 5 (B) is a diagram showing an outline of a configuration of a conventional type B antenna.
  • FIGS. 1 (a) and 1 (b) show a schematic configuration of an embodiment of the antenna of the present invention.
  • the antenna is located above an element conductor 3.
  • the antenna element includes an antenna element having an upper conductor portion 6 formed via an insulating portion 8, and a helical element 4.
  • the antenna element is made to slide inside the helical element 4 so as to be able to protrude and retract from the housing 10, and the antenna element is housed in the housing 10 as shown in FIG. 1 (b).
  • Fig. 1 (a) shows a state where the antenna element is extended from the housing 10 as shown in Fig. 1 (a).
  • the helical element 4 is fixedly provided in the upper protruding portion of the housing 10.
  • the antenna element of such an antenna When the antenna element of such an antenna is extended, a signal from the signal source 2 in the housing 10 is supplied to the feed unit 5 via the matching circuit (MC) 1. Then, the power supply unit 5 is electrically connected to the lower end of the element conductor 3, and the element conductor 3 is brought into an operating state. At this time, the helical element 4 is a parasitic element connected to nowhere, but the helical element 4 is excited at a high frequency by the high-frequency current flowing through the element conductor 3.
  • the signal from the signal source 2 in the housing 10 is fed through the matching circuit (MC) 1
  • the power is supplied to the section 5, and the feed section 5 is electrically connected to the lower end of the upper conductor section 6 above the antenna element.
  • the upper end of the helical element 4 is electrically connected to the upper end of the upper conductor 6 at the connection point 7. Therefore, the helical element 4 is driven via the upper conductor 6.
  • the element conductor 3 is insulated from the upper conductor section 6 by the insulating section 8 and is brought into a non-operating state.
  • the element conductor 3 is connected to the feed section 5 to excite the element conductor 3.
  • the helical element 4 acts as a parasitic element that is excited at a high frequency by the high-frequency current flowing through the element conductor 3, for example, the resonance frequency of the helical element 4 is set to the center frequency of the mobile station reception band, Since the resonance frequency of the element conductor 3 is set to the center frequency of the mobile station transmission band, two resonance characteristics can be obtained in the frequency versus impedance characteristics. That is, as shown in FIG. 3 (a), the characteristics of the frequency to voltage standing wave ratio (VS WR) of the antenna at the time of extension cover the allocated mobile station transmission band and mobile station reception band as shown in the present invention. Yes Two resonance characteristics.
  • the upper conductor 6 when the antenna element is housed, the upper conductor 6 is connected to the feeder 5, and the upper end of the upper conductor 6 is connected to the helical element 4. Distribution capacity occurs at the overlap between 6 and helical element 4. Therefore, an L-C parallel resonance circuit is formed, and a different resonance frequency different from the natural resonance frequency of the upper conductor 6 can be obtained. Thereby, two resonance characteristics can be obtained.
  • the frequency of the antenna when housed and the V SWR characteristics are two resonances covering the allocated mobile station transmission band and mobile station reception band. Characteristics.
  • the antenna of the present invention makes the resonance frequencies of the element conductor 3 and the helical element 4 different to cover the mobile station transmission band and the mobile station reception band during extension and storage.
  • the operation is performed, and an example of the detailed configuration is shown in FIGS. 2 (a) and 2 (b).
  • FIG. 2 (a) is a diagram illustrating a state where the antenna element is extended from the housing 10
  • FIG. 2 (b) is a diagram illustrating a state where the antenna element is housed in the housing 10.
  • the antenna element shown in Figs. 2 (a) and (b) has an insulative antenna top 13 formed at the tip, and an upper conductor section is formed on the outer periphery of the lower part of the extension extending downward from the antenna top 13. 6 is inserted. The lower end of the extended portion of the antenna top 13 protrudes from the lower end of the upper conductor portion 6, and the extended portion and the upper end of the element conductor 3 are integrated by molding.
  • An insulating tube 9 is fitted around the outer periphery of the element conductor 3, and A stopper conductor 11 is fitted into the lower end of the component conductor 3 from above the insulating tube 9, and the element conductor 3 and the stopper conductor 11 are electrically connected.
  • Such an antenna element is slidably inserted into the helical element 4 housed in the external protrusion of the housing 10 and slidably inserted into the holder conductor 12 fixed to the housing 10.
  • the holder conductor 12 is electrically connected to the matching circuit 1, and the matching circuit 1 is connected to the signal source 2.
  • the final stage of the transmission unit provided in the housing 10 corresponds to the signal source 2.
  • the signal source 2 is the housing 10. It corresponds to the received signal supplied to the receiving unit provided in the inside.
  • the signal source 2 connected via the matching circuit 1 is connected to the element conductor 3 via the holder conductor 12 and the stopper conductor 11 by being inserted into and electrically connected to the element conductor 3.
  • the high frequency current flowing through the element conductor 3 causes the helical element 4, which is a parasitic element connected to nowhere, to be coupled with the element conductor 3 at a high frequency, and the helical element 4 becomes a parasitic element. Operate.
  • the upper conductor 6 does not function as an antenna due to the action of the insulating part 8.
  • the antenna top 13 abuts against the external projection of the housing 10 and the upper conductor 6 is a helical element. 4 and the lower part thereof is inserted into the holder conductor 12 to be electrically connected. Therefore, the signal source 2 connected via the matching circuit 1 is connected to the lower portion of the upper conductor 6 via the holder conductor 12.
  • the upper end of the upper conductor 6 is connected to the upper end of the helical element 4, so that a high-frequency current flows through the upper conductor 6 and the helical element 4.
  • the element conductor 3 is brought into a non-operating state by the action of the insulating portion 8.
  • the overlapping part of the upper conductor 6 and the helical element 4 is an L-C parallel resonance circuit. Will be constituted.
  • FIG. 1 Another example of the detailed configuration of the antenna of the present invention is shown in FIG.
  • the antenna shown in this figure is different from the configuration of the antenna shown in FIGS. 2 (a) and 2 (b) in that it is not integrated with the housing 10 but is formed independently. Since the operation of the antenna is the same as that of the antenna shown in FIGS. 2 (a) and 2 (b), a detailed description thereof will be omitted, and the differences will be described.
  • FIG. 4 shows a state in which the antenna element is extended, and a stopper 11 electrically connected to a lower end of the element conductor 3 inserted and arranged in the insulating tube 9 is attached to a lower end of the holder conductor 12. I'm in opposition. At this time, the holder conductor 12 and the element conductor 3 are connected, and the element conductor 3 is connected to the matching circuit 1 and the like included in the housing 10.
  • the helical element 4 which is a parasitic element that is coupled to the element conductor 3 at high frequency by the high-frequency current flowing through the element conductor 3, is disposed in a helical element cover 14 formed of resin or the like. I have.
  • the helical element cover 14 is fixed on the upper part of the holder conductor 12.
  • the element conductor 3 is formed of a material having elasticity, the element conductor 3 covered with the insulating tube 9 has flexibility, and the extended antenna element is an obstacle. Even if it collides with an object or the like, breakage of the antenna element can be prevented.
  • the operation mode of the antenna can be arbitrarily set at about 1/4 wavelength to about 12 wavelengths.
  • the matching circuit 1 can be omitted under conditions close to 14 wavelengths.
  • the antenna of the present invention is configured so that the resonance frequency of the element conductor is different from the resonance frequency of the helical element.
  • the antenna of the present invention can be a two-resonance antenna that can cover the mobile station transmission band and the mobile station reception band when extended and retracted, and can be applied to portable equipment, especially portable radio telephones. It is suitable.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Abstract

Cette invention concerne une antenne dans laquelle, lors du déploiement d'un élément d'antenne, un élément hélicoïdal (4) agit comme un élément parasite tandis qu'un courant à haute fréquence passe à travers un élément conducteur (3), ce qui a pour effet de faire fonctionner l'élément (4) comme un élément parasite excité à haute fréquence. Lorsque l'élément d'antenne est replié dans un logement, de l'énergie électrique est envoyée à l'extrémité supérieure de l'élément (4) depuis l'extrémité supérieure d'une partie supérieure (6) d'un conducteur. Les parties de l'élément (4) qui se chevauchent et la partie (6) forment un circuit de résonance parallèle L-C. Cette antenne peut ainsi fonctionner en mode de résonance double.
PCT/JP1996/003315 1995-11-22 1996-11-12 Antenne WO1997019488A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP96937561A EP0805506A1 (fr) 1995-11-22 1996-11-12 Antenne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP32624995A JP3431379B2 (ja) 1995-11-22 1995-11-22 アンテナ
JP7/326249 1995-11-22

Publications (1)

Publication Number Publication Date
WO1997019488A1 true WO1997019488A1 (fr) 1997-05-29

Family

ID=18185668

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1996/003315 WO1997019488A1 (fr) 1995-11-22 1996-11-12 Antenne

Country Status (6)

Country Link
EP (1) EP0805506A1 (fr)
JP (1) JP3431379B2 (fr)
KR (1) KR19980701595A (fr)
CN (1) CN1172555A (fr)
TW (1) TW351023B (fr)
WO (1) WO1997019488A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112086731A (zh) * 2020-09-16 2020-12-15 珠海格力电器股份有限公司 通信设备、通信设备的控制方法、装置和通信系统

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09199922A (ja) * 1996-01-12 1997-07-31 Kyocera Corp アンテナ装置
JP2000269714A (ja) * 1999-03-12 2000-09-29 Nec Corp 携帯無線機のアンテナ装置
US6417808B1 (en) 2000-03-07 2002-07-09 Nec Corporation Transceiver including antenna apparatus which is compactly accommodated in body of transceiver
JP3774136B2 (ja) * 2000-10-31 2006-05-10 三菱マテリアル株式会社 アンテナ及びそれを用いた電波送受信装置
JP2005176302A (ja) 2003-09-26 2005-06-30 Nec Access Technica Ltd 携帯端末のアンテナ装置および放送波を受信可能な無線機
KR20060129773A (ko) * 2005-06-13 2006-12-18 삼성전자주식회사 휴대용 단말기의 안테나 장치
CN103124002B (zh) * 2012-12-30 2015-06-24 上海安费诺永亿通讯电子有限公司 用于移动终端的多频带宽带天线

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05102717A (ja) * 1991-10-04 1993-04-23 Kyocera Corp 無線電話用伸縮アンテナ装置
JPH06216630A (ja) * 1993-01-14 1994-08-05 Nippon Antenna Kk 伸縮式ホイップアンテナ
JPH08503830A (ja) * 1993-05-24 1996-04-23 アルゴン・アーベー 携帯装置用アンテナ

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05102717A (ja) * 1991-10-04 1993-04-23 Kyocera Corp 無線電話用伸縮アンテナ装置
JPH06216630A (ja) * 1993-01-14 1994-08-05 Nippon Antenna Kk 伸縮式ホイップアンテナ
JPH08503830A (ja) * 1993-05-24 1996-04-23 アルゴン・アーベー 携帯装置用アンテナ

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112086731A (zh) * 2020-09-16 2020-12-15 珠海格力电器股份有限公司 通信设备、通信设备的控制方法、装置和通信系统

Also Published As

Publication number Publication date
KR19980701595A (ko) 1998-05-15
TW351023B (en) 1999-01-21
JP3431379B2 (ja) 2003-07-28
CN1172555A (zh) 1998-02-04
JPH09148827A (ja) 1997-06-06
EP0805506A1 (fr) 1997-11-05

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