EP0642189B1 - Antenne für tragbares Funkgerät - Google Patents

Antenne für tragbares Funkgerät Download PDF

Info

Publication number
EP0642189B1
EP0642189B1 EP19940401711 EP94401711A EP0642189B1 EP 0642189 B1 EP0642189 B1 EP 0642189B1 EP 19940401711 EP19940401711 EP 19940401711 EP 94401711 A EP94401711 A EP 94401711A EP 0642189 B1 EP0642189 B1 EP 0642189B1
Authority
EP
European Patent Office
Prior art keywords
antenna
conductor
edge
face
board
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.)
Expired - Lifetime
Application number
EP19940401711
Other languages
English (en)
French (fr)
Other versions
EP0642189A1 (de
Inventor
Jacques Lourdou
Marc Jarreau
Thierry Jacqueminet
Gérard Legeay
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.)
Sagem SA
Original Assignee
Sagem SA
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 Sagem SA filed Critical Sagem SA
Publication of EP0642189A1 publication Critical patent/EP0642189A1/de
Application granted granted Critical
Publication of EP0642189B1 publication Critical patent/EP0642189B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • 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
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Definitions

  • a portable radio device with limited range, for example, consider a mobile radio terminal such as the cellular radiotelephony or proximity radiotelephony.
  • the terminal includes a box of limited size in which a microphone and earphone allow user to communicate with a remote contact.
  • a radio transceiver circuit connects the microphone and earpiece to a terminal antenna tuned to transmit and receive frequencies.
  • the antenna of a radiotelephony terminal is often present under shape of a linear conductor connected at one end to the circuit transceiver and which protrudes out of the housing.
  • the antenna can however be retractable to limit the size at rest.
  • This type of antenna has the drawback of significantly increasing the size of the terminal and to require, if this is the case, a maneuver to deploy and fold it back.
  • the present invention aims to provide an antenna for radio apparatus portable, compact, and requiring no maneuver.
  • the invention relates to an antenna for a portable radio device. according to claim 1.
  • the micro-ribbon circuit board has a very limited space requirement, which allows to have the antenna in the operating position and, by example, inside the case of the portable radio device.
  • the antenna 1 shown in Figure 1 is mounted at the end, here upper, of a housing 11 of a mobile radiotelephony terminal and is connected to a radio transceiver circuit 13.
  • the antenna 1 comprises a section, or plate, of micro-ribbon circuit (micro-strip), here of rectangular section, consisting of an insulator 2 and, in border, of a layer, or strip, of a linear conductor in microstrip 3.
  • micro-strip micro-ribbon circuit
  • connection of the conductor 3 with the radio circuit 13 is carried out by metallization 4 joining the edge of the plate carrying the conductor 3 at the opposite fixing edge at the end of the housing 11.
  • the plate extends perpendicular to the transverse end of the housing 11.
  • a connection pad 9, or foot of the antenna 1, allows, by a wire, to connect between the free end of the link 4 to the radio circuit 13.
  • the housing 11 is internally coated with a metallic layer 12 forming a mass and extending from the foot 9 of antenna 1 until an interruption, over a substantially equal distance at a quarter of the operating wavelength of antenna 1.
  • This layer 12 serves as a reflector and increases the efficiency of antenna 1. Beyond of this interruption, the case can be coated with another layer metallic.
  • An insulating coating 10 is also provided, shown in FIG. 1 of fragmentary, covering the housing 11 and which is extended by a massive part 10A forming a radome drowning the antenna 1 and protecting it so mechanically.
  • the plate is shown along the edge of the micro-strip circuit, in front and rear view.
  • the brochure includes a front face 21, a rear face 22, here parallel to the front face 21, and two pairs of opposite edges 23, 25 and 24, 26.
  • Edge 25, for fixing to the housing, carries a conductive layer, not shown, forming a plane of mass, through which a passage is provided for the excitation of the antenna.
  • the plate to fix ideas, can be 45 millimeters long and 20 millimeters wide (antenna height). Its thickness, measured perpendicular to the plane of the figures, can be 15 millimeters.
  • Her tuning frequency can be between 100 MHz and a few GHz, for example.
  • the conductor 3 is printed on the face 21, on a certain thickness of the insert, without reaching the rear face 22, free of all driver.
  • the conductor 3 continues with the link 4 printed along the edge 26 and joining at point A foot 9 located on edge 25, here approximately at mid-length.
  • the conductor 3 is also extended by a connection 5, opposite at connection 4, printed along edge 24.
  • conductor 3-5 has an antenna shape whip folded.
  • the width of the conductor 3, in the plane of the figure, has been chosen large enough to ensure sufficient efficiency for antenna 1.
  • the front face of the plate is quite similar to that of Figure 2, but ends A and B of conductor 3-5 can be connected to ground.
  • the rear face 22 of the wafer carries another conductor 6, arranged to cooperate with conductor 3-5.
  • Conductor 6 extends and widens from one end C excitation, at edge 25, to opposite edge 23.
  • the excitation end receives a radio circuit 13 excitation signal if it transmits, or excites this radio circuit 13 if it is in reception.
  • the conductor 6 When the conductor 6 is excited at C, it excites at in turn, by capacitive effect, the driver 3-5 which then radiates.
  • FIG. 4 represents a substantially T-shaped antenna conductor, whose ends of the horizontal bar are extended by links the along edges 24 and 26 terminated by ends B and C which can be grounded.
  • Excitement is provided at foot A of the central bar vertical 4T of the T, on the edge 25.
  • the rear face 22 has no driver.
  • the front face 21 is substantially similar to that of the Figure 4, while the rear face 22 is practically similar to that of Figure 3, its conductor 6 can be excited by its end D.
  • FIG. 6 represents a saber type antenna, comprising, on the face before 21, conductors along the edges 23, 26 and, partially, 24.
  • the ends B and C of the conductors on these edges can be connected to the mass.
  • An excitation link 7 connects one end A, on the edge 25, to, substantially, the junction of the conductors on the edges 23 and 26.
  • the face rear 22 is free of driver.
  • the front face 21 of the antenna of FIG. 7 is quite similar to that of Figure 6, without the excitation link 7.
  • the rear face 22 carries another conductor, of end C, of a shape fairly similar to those of FIGS. 3 and 5.
  • the front face 21 shown in FIG. 8 comprises two conductors 8, 8A coupled, forming a dipole, in the form of adjacent "n" and arranged symmetrically about an axis of symmetry 1A equidistant from the edges 24 and 26.
  • One, 8, of the conductors can be excited by its end B next to the other conductor 8A, the other three ends A, C, D that can be grounded.
  • the rear face 22 carries another conductor 8C used to modify the impedance seen by the other two conductors 8, 8A and thus adjust the frequency of agreement.
  • Figure 10 shows a saber type antenna quite similar to that in Figure 6.
  • An outgrowth C of the excitation bond close to the excitation end B makes it possible to adapt the antenna, the end A on the edge 26 being grounded.
  • the extension 5 which is capacitively coupled to a printed conductive pad D from the edge formed by edges 24 and 25.
  • the antenna also of saber type, has substantially the shape of that of the figure 6. It includes, as could all other forms of previously described embodiment, a conductive plate 1C connected to the conductor 3 and extending substantially parallel to edge 23 along from which this conductor 3 extends, perpendicular to the faces 21 and 22.
  • the plate 1C has the effect of increasing the bandwidth of the antenna 1.
  • Provision may be made to remove dielectric material in order to modify the radiation characteristics of the antenna. Provision may also be made massive conductive elements.

Landscapes

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

Claims (5)

  1. Antenne für ein tragbares Funkgerät, das einen linearen Leiter (3) aufweist, der ausgelegt ist, um an eine Funkverbindung (13) angeschlossen zu werden,
    dadurch gekennzeichnet, daß
    er eine Mikrostrelfen-Leiterplatte aufweist, die ein Leitungsband trägt, das zumindest einen Teil des Leiters (3) bildet, der sich von einer ersten Seite (21) der Platte und entlang des ersten (23) seiner Ränder erstreckt, der gegenüber von einem zweiten (25) seiner Ränder angeordnet ist, wobei die Mikrostreifen-Leiterplatte eine Massenebene trägt, die benachbart zu der ersten Seite (21) angeordnet ist, und einen anderen Leiter (6) aufweist, der sich auf einer zweiten Seite (22) der Platte erstreckt, die parallel zu der ersten Seite (21) des Leiters (3) ist, um angeregt zu werden und um mittels einer kapazitiven Wirkung den Leiter (3) anzuregen.
  2. Antenne nach Anspruch 1,
    dadurch gekennzeichnet, daß
    eine leitende Verbindung (4, 4T) den Leiter (3) mit dem zweiten Rand (25) von der Platte verbindet.
  3. Antenne nach Anspruch 2,
    dadurch gekennzeichnet, daß
    Verbindungsmittel (9) vorgesehen sind, um das Ende der leitenden Verbindung (4), die an dem zweiten Rand (25) angeordnet ist mit der Funkverbindung (13) zu verbinden.
  4. Antenne nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet, daß
    sich der Leiter (3) entlang eines dritten (26) der Ränder der Platte verlängert (4).
  5. Antenne nach einem der Ansprüche 1 bis 4,
    dadurch gekennzeichnet, daß
    eine leitende Schicht (12) vorgesehen ist, um eine Reflektorebene zu bilden, die sich von einem Fuß (9) der Antenne über eine Distanz, die im wesentlich gleich einem Viertel der Wirkwellenlänge der Antenne ist, erstreckt.
EP19940401711 1993-09-02 1994-07-26 Antenne für tragbares Funkgerät Expired - Lifetime EP0642189B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9310462A FR2709604B1 (fr) 1993-09-02 1993-09-02 Antenne pour appareil radio portatif.
FR9310462 1993-09-02

Publications (2)

Publication Number Publication Date
EP0642189A1 EP0642189A1 (de) 1995-03-08
EP0642189B1 true EP0642189B1 (de) 2003-03-05

Family

ID=9450506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19940401711 Expired - Lifetime EP0642189B1 (de) 1993-09-02 1994-07-26 Antenne für tragbares Funkgerät

Country Status (3)

Country Link
EP (1) EP0642189B1 (de)
DE (1) DE69432205T2 (de)
FR (1) FR2709604B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7183983B2 (en) 2005-04-26 2007-02-27 Nokia Corporation Dual-layer antenna and method

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2727250A1 (fr) * 1994-11-22 1996-05-24 Brachat Patrice Antenne large bande monopole en technologie imprimee uniplanaire et dispositif d'emission et/ou de reception incorporant une telle antenne
JPH11506282A (ja) * 1995-06-02 1999-06-02 エリクソン インコーポレイテッド 多バンド印刷モノポールアンテナ
AU708520B2 (en) * 1995-06-02 1999-08-05 Ericsson Inc. Printed monopole antenna
US5709832A (en) * 1995-06-02 1998-01-20 Ericsson Inc. Method of manufacturing a printed antenna
GB9627091D0 (en) * 1996-12-31 1997-02-19 Northern Telecom Ltd An inverted E antenna
DE19822371B4 (de) * 1998-05-19 2018-03-08 Ipcom Gmbh & Co. Kg Antennenanordnung und Funkgerät
US6239765B1 (en) * 1999-02-27 2001-05-29 Rangestar Wireless, Inc. Asymmetric dipole antenna assembly
US6198442B1 (en) * 1999-07-22 2001-03-06 Ericsson Inc. Multiple frequency band branch antennas for wireless communicators
WO2001009976A1 (de) * 1999-07-29 2001-02-08 Siemens Aktiengesellschaft Funkgerät mit einem gehäuse, in das eine hohlform zur aufnahme eines antennenelements integriert ist
AU6210700A (en) * 1999-08-18 2001-03-13 Ericsson Inc. A dual band bowtie/meander antenna
US6552686B2 (en) * 2001-09-14 2003-04-22 Nokia Corporation Internal multi-band antenna with improved radiation efficiency

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3984838A (en) * 1975-05-27 1976-10-05 Textron, Inc. Electrically small, double loop low backlobe antenna
US4571595A (en) * 1983-12-05 1986-02-18 Motorola, Inc. Dual band transceiver antenna
US4849765A (en) * 1988-05-02 1989-07-18 Motorola, Inc. Low-profile, printed circuit board antenna
GB8821171D0 (en) * 1988-09-09 1988-10-12 Bantex Ltd Antenna
US5138328A (en) * 1991-08-22 1992-08-11 Motorola, Inc. Integral diversity antenna for a laptop computer
JP2705392B2 (ja) * 1991-09-04 1998-01-28 日本電気株式会社 携帯無線機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7183983B2 (en) 2005-04-26 2007-02-27 Nokia Corporation Dual-layer antenna and method

Also Published As

Publication number Publication date
FR2709604A1 (fr) 1995-03-10
FR2709604B1 (fr) 1995-10-20
EP0642189A1 (de) 1995-03-08
DE69432205T2 (de) 2004-02-12
DE69432205D1 (de) 2003-04-10

Similar Documents

Publication Publication Date Title
EP1241733B1 (de) PIFA-Antenne mit Schlitzen
EP0604338B1 (de) Wenig Raum beanspruchende, breitbandige Antenne mit zugehörigem Sendeempfänger
EP0825673B1 (de) Ebene Antenne mit kurzgeschlossenen übereinanderliegenden Elementen
US6366243B1 (en) Planar antenna with two resonating frequencies
EP1145378B1 (de) Zweiband-übertragungsanordnung und eine antenne für diese anordnung
EP1849213B1 (de) Multiband-gedruckte dipolantenne
EP0642189B1 (de) Antenne für tragbares Funkgerät
EP1407512B1 (de) Antenne
CA2267536A1 (fr) Dispositif de radiocommunication et antenne bifrequence realisee selon la technique des microrubans
EP0527417A1 (de) Miniaturisiertes Radioantennenelement
EP1172885A1 (de) Kurzgeschlossene Streifenleiterantenne und Zweiband-Übertragungsanordnung damit
WO2002054538A1 (fr) Antenne multi-bandes pour appareils mobiles
FR2860927A1 (fr) Antenne interne de faible volume
FR2826185A1 (fr) Antenne fil-plaque multifrequences
EP0327965A2 (de) Antenne für mehrere Frequenzen für Satellitenfunk
FR2587845A1 (fr) Antenne de fenetre pour vehicule
EP1225655B1 (de) Dualband Planarantenne und diese enthaltendes Gerät
EP1564842B1 (de) Ultrabreitbandige Antenne
EP1516393B1 (de) Doppelpolarisations-doppelbandstrahlungseinrichtung
FR2754942A1 (fr) Systeme antennaire pour poste radiotelephone portatif
WO2004004066A1 (fr) Antenne plane multibande
AU6061898A (en) Plane antenna, and portable radio using thereof
FR2664749A1 (fr) Antenne microonde.
EP0463263A1 (de) Zirkular polarisierte Rundum-Antenne mit grösstem Gewinn in horizontaler Richtung
FR2778499A1 (fr) Antenne a plaque

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE GB IT

17P Request for examination filed

Effective date: 19950505

17Q First examination report despatched

Effective date: 19970605

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SAGEM SA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): DE GB IT

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 69432205

Country of ref document: DE

Date of ref document: 20030410

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20031208

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20060731

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070726

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 69432205

Country of ref document: DE

Representative=s name: PATENT- UND RECHTSANWAELTE BARDEHLE PAGENBERG, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 69432205

Country of ref document: DE

Representative=s name: BARDEHLE PAGENBERG PARTNERSCHAFT MBB PATENTANW, DE

Effective date: 20111026

Ref country code: DE

Ref legal event code: R081

Ref document number: 69432205

Country of ref document: DE

Owner name: APPLE INC., CUPERTINO, US

Free format text: FORMER OWNER: SAGEM MOBILES, PARIS, FR

Effective date: 20111026

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20120426 AND 20120502

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20120503 AND 20120509

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20130724

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20130724

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69432205

Country of ref document: DE

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20140725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20140729

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20140725