EP0833402A1 - Funkübertragungseinrichtung mit einer ausziehbaren Antenne und eine Antenne für eine solcher Einrichtung - Google Patents

Funkübertragungseinrichtung mit einer ausziehbaren Antenne und eine Antenne für eine solcher Einrichtung Download PDF

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Publication number
EP0833402A1
EP0833402A1 EP97202822A EP97202822A EP0833402A1 EP 0833402 A1 EP0833402 A1 EP 0833402A1 EP 97202822 A EP97202822 A EP 97202822A EP 97202822 A EP97202822 A EP 97202822A EP 0833402 A1 EP0833402 A1 EP 0833402A1
Authority
EP
European Patent Office
Prior art keywords
antenna
strand
helix
excitation
antenna device
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP97202822A
Other languages
English (en)
French (fr)
Other versions
EP0833402B1 (de
Inventor
David c/o Société Civile S.P.I.D. Duperray
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Philips Electronics NV
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 Koninklijke Philips Electronics NV, Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of EP0833402A1 publication Critical patent/EP0833402A1/de
Application granted granted Critical
Publication of EP0833402B1 publication Critical patent/EP0833402B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set

Definitions

  • the invention also relates to an antenna device for such a device.
  • the invention finds important applications in the field of mobile radios used in networks cell phones like GSM, AMPS, ETACS, etc.
  • bandwidth used is relatively important.
  • the devices used are portable, we want their dimensions to be small, which requires the antennas are as compact as possible especially when the devices are waiting for a communication. The antennas are then put in their folded position. So we are faced with the problem of reconcile broadband operation with space reduces antennas. It should be remembered that there are difficulties in operating on a broadband the compact antennas.
  • This antenna has the disadvantage that, in folded position, the strand remains connected to the device of excitement and radiates, when the device is in emission, of energy & inside the appliance which can harm circuits which receive the radiated wave and also hinder the wave reception when the device is in position reception.
  • the invention provides an apparatus of the kind mentioned in the preamble which mitigates to a large extent the aforementioned drawback.
  • Such a device is also remarkable, according to a another characteristic of the invention, in that said strand has at its other end a contact part to be connected to said excitation link in the folded position.
  • the strand and the first propeller participate in the radiation and, in folded position, the two propellers are placed end to end to participate in outreach.
  • Figure 1 shows a device according to the invention.
  • Figure 2 shows the antenna that is part of the device in a first position.
  • Figure 3 shows the antenna part of the device in a second position.
  • a device 1 conforming to the invention can be a GSM terminal and must therefore have small dimensions. It includes, as in the usual, a keyboard 2, a screen 3, a microphone 4 and a earpiece 5. It is also provided with an antenna device 10 with a folded position, which is shown in A at the Figure 1, and an unfolded position, which is shown in B on this same figure. The stowed position is used when the device is waiting for a call. This implies that only the receiving part of the device is in operation. In the unfolded position the device is in transmission and, in this case, the antenna adaptation performance must be better.
  • FIG. 2 shows in more detail the device antenna 10.
  • this antenna is shown in position folded and at B in the unfolded position.
  • the reference 20 indicates the antenna excitation point. This point is in contact with a conductive ring 21 which is in contact with a first end of a first propeller 25. The other end of this propeller is in contact with a conductive ring 28.
  • These two rings 21 and 28 allow the passage of a strand of radiation 30. This strand of radiation enters a cavity 32 formed in the device 1 when the antenna is in the folded position and emerges outside when the antenna is in the unfolded position.
  • a second propeller 35 is placed above this radiating strand 30.
  • an insulating element 50 allows a mechanical connection of this propeller 35 with the upper end of said strand 30. This element is rendered visible at A by a notch made in the drawing.
  • the lower end of the strand 30 is connected mechanically and electrically to a conductive part circular 55.
  • the strand 30 and the propeller 25 participate in the radiation.
  • the antenna has an extended bandwidth due to these two coupled resonant systems.
  • the two propellers When the antenna is in the folded position, the two propellers are placed in series or in cascade which increases their mechanical height and, therefore, radio efficiency which is related to this height.
  • FIG 3 shows the performance, in wave rate stationary (VSWR), obtained by these antennas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)
EP97202822A 1996-09-25 1997-09-15 Funkübertragungseinrichtung mit einer ausziehbaren Antenne und eine Antenne für eine solcher Einrichtung Expired - Lifetime EP0833402B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9611667 1996-09-25
FR9611667 1996-09-25

Publications (2)

Publication Number Publication Date
EP0833402A1 true EP0833402A1 (de) 1998-04-01
EP0833402B1 EP0833402B1 (de) 2004-12-08

Family

ID=9496042

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97202822A Expired - Lifetime EP0833402B1 (de) 1996-09-25 1997-09-15 Funkübertragungseinrichtung mit einer ausziehbaren Antenne und eine Antenne für eine solcher Einrichtung

Country Status (4)

Country Link
US (1) US5900839A (de)
EP (1) EP0833402B1 (de)
JP (1) JP3919895B2 (de)
DE (1) DE69731861T2 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0825672A2 (de) * 1996-08-22 1998-02-25 Lk-Products Oy Antenne für zwei Frequenzen
EP0986132A2 (de) * 1998-09-07 2000-03-15 Ace Technology Wendelantenne für tragbare Telefone und Herstellungsverfahren für eine derartige Antenne
US6417808B1 (en) 2000-03-07 2002-07-09 Nec Corporation Transceiver including antenna apparatus which is compactly accommodated in body of transceiver
GB2335312B (en) * 1998-02-27 2002-10-09 Motorola Inc An antenna adapted to operate in a plurality of frequency bands
US6777117B1 (en) 1999-03-18 2004-08-17 Matsushita Electric Works, Ltd. Catalysts for water gas shift reaction, method for removing carbon monoxide in hydrogen gas and electric power-generating system of fuel cell

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6047166A (en) * 1998-03-23 2000-04-04 Lan; Chih Hung Gain structure of antennae of mobile phones
US7226591B2 (en) * 2000-05-22 2007-06-05 Genentech, Inc. Interleukin-22 polypeptides, nucleic acids encoding the same and methods for the treatment of pancreatic disorders
US6204818B1 (en) * 2000-02-01 2001-03-20 Auden Technology Mfg. Co., Ltd. Stretchable antenna for mobile phones
US6359592B1 (en) 2000-11-10 2002-03-19 Motorola, Inc. Minimum frequency shift telescoping antenna
JP3515559B2 (ja) 2002-01-09 2004-04-05 日本アンテナ株式会社 多周波用アンテナ
CN110416730B (zh) * 2018-04-27 2021-08-31 Oppo广东移动通信有限公司 电子设备和电子设备的控制方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644606A1 (de) * 1993-09-16 1995-03-22 Fujitsu Limited Tragbares Funkgerät und belastete Antenne dafür
WO1995012224A1 (en) * 1993-10-29 1995-05-04 Allgon Ab Broadband aerial means

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5650789A (en) * 1995-10-10 1997-07-22 Galtronics Ltd. Retractable antenna system
US5764191A (en) * 1996-10-07 1998-06-09 Sony Corporation Retractable antenna assembly for a portable radio device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0644606A1 (de) * 1993-09-16 1995-03-22 Fujitsu Limited Tragbares Funkgerät und belastete Antenne dafür
WO1995012224A1 (en) * 1993-10-29 1995-05-04 Allgon Ab Broadband aerial means

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0825672A2 (de) * 1996-08-22 1998-02-25 Lk-Products Oy Antenne für zwei Frequenzen
EP0825672A3 (de) * 1996-08-22 2000-03-22 Lk-Products Oy Antenne für zwei Frequenzen
GB2335312B (en) * 1998-02-27 2002-10-09 Motorola Inc An antenna adapted to operate in a plurality of frequency bands
EP0986132A2 (de) * 1998-09-07 2000-03-15 Ace Technology Wendelantenne für tragbare Telefone und Herstellungsverfahren für eine derartige Antenne
EP0986132A3 (de) * 1998-09-07 2001-10-17 Ace Technology Wendelantenne für tragbare Telefone und Herstellungsverfahren für eine derartige Antenne
US6777117B1 (en) 1999-03-18 2004-08-17 Matsushita Electric Works, Ltd. Catalysts for water gas shift reaction, method for removing carbon monoxide in hydrogen gas and electric power-generating system of fuel cell
US6417808B1 (en) 2000-03-07 2002-07-09 Nec Corporation Transceiver including antenna apparatus which is compactly accommodated in body of transceiver

Also Published As

Publication number Publication date
JPH10112606A (ja) 1998-04-28
EP0833402B1 (de) 2004-12-08
DE69731861D1 (de) 2005-01-13
JP3919895B2 (ja) 2007-05-30
DE69731861T2 (de) 2006-03-02
US5900839A (en) 1999-05-04

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