EP0938158A3 - Antenna - Google Patents

Antenna Download PDF

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Publication number
EP0938158A3
EP0938158A3 EP99660027A EP99660027A EP0938158A3 EP 0938158 A3 EP0938158 A3 EP 0938158A3 EP 99660027 A EP99660027 A EP 99660027A EP 99660027 A EP99660027 A EP 99660027A EP 0938158 A3 EP0938158 A3 EP 0938158A3
Authority
EP
European Patent Office
Prior art keywords
antenna
conductor
resonance frequency
close
causes
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.)
Withdrawn
Application number
EP99660027A
Other languages
German (de)
French (fr)
Other versions
EP0938158A2 (en
Inventor
Timo Saari
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.)
Nokia Oyj
Original Assignee
Nokia Mobile Phones 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
Application filed by Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Priority claimed from US09/252,159 external-priority patent/US6111545A/en
Publication of EP0938158A2 publication Critical patent/EP0938158A2/en
Publication of EP0938158A3 publication Critical patent/EP0938158A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/12—Resonant antennas
    • H01Q11/14—Resonant antennas with parts bent, folded, shaped or screened or with phasing impedances, to obtain desired phase relation of radiation from selected sections of the antenna or to obtain desired polarisation effect
    • 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
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q11/00—Electrically-long antennas having dimensions more than twice the shortest operating wavelength and consisting of conductive active radiating elements
    • H01Q11/02—Non-resonant antennas, e.g. travelling-wave antenna
    • H01Q11/04—Non-resonant antennas, e.g. travelling-wave antenna with parts bent, folded, shaped, screened or electrically loaded to obtain desired phase relation of radiation from selected sections of the antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30—Arrangements for providing operation on different wavebands
    • H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
    • H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
    • H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
    • 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

Landscapes

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

Abstract

The invention comprises an antenna structure particularly suited for mobile stations. The antenna comprises a radiating element (100) which is of a conductor form. The antenna conductor comprises a basic conductor and as an extension to this a conductor (115, 116) which at least partly is located relatively close to the basic conductor. As the conductors are close to each other that causes an electromagnetic coupling, which again causes a second resonance frequency for the antenna. The bandwidth of the antenna can be widened when the second resonance frequency is arranged close to the first one. The antenna can be made as a two-band antenna when the second resonance frequency is arranged relatively far from the first one. The bands can be made relatively wide, so that the antenna operates satisfactorily in different positions and in the neighbourhood of objects. It can be fastened to the back wall of a mobile station, whereby the distance to the user's head is made as large as possible.
Figure 00000001
EP99660027A 1998-02-20 1999-02-17 Antenna Withdrawn EP0938158A3 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI980392 1998-02-20
FI980392A FI980392A (en) 1998-02-20 1998-02-20 Antenna
US09/252,159 US6111545A (en) 1992-01-23 1999-02-18 Antenna

Publications (2)

Publication Number Publication Date
EP0938158A2 EP0938158A2 (en) 1999-08-25
EP0938158A3 true EP0938158A3 (en) 2000-11-02

Family

ID=26160546

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99660027A Withdrawn EP0938158A3 (en) 1998-02-20 1999-02-17 Antenna

Country Status (2)

Country Link
EP (1) EP0938158A3 (en)
FI (1) FI980392A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8009111B2 (en) 1999-09-20 2011-08-30 Fractus, S.A. Multilevel antennae
US8738103B2 (en) 2006-07-18 2014-05-27 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices
US9331382B2 (en) 2000-01-19 2016-05-03 Fractus, S.A. Space-filling miniature antennas

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE522846C2 (en) * 2000-06-22 2004-03-09 Ericsson Telefon Ab L M Antenna with helical radiator and feedback conductor, as well as multi-layer cards and portable communication apparatus including such an antenna
JP4044302B2 (en) * 2001-06-20 2008-02-06 株式会社村田製作所 Surface mount type antenna and radio using the same
US9755314B2 (en) 2001-10-16 2017-09-05 Fractus S.A. Loaded antenna
EP1309103A1 (en) 2001-10-31 2003-05-07 Nokia Corporation Antenna system for GSM/WLAN radio operation
JP3931866B2 (en) 2002-10-23 2007-06-20 株式会社村田製作所 Surface mount antenna, antenna device and communication device using the same
AU2003303179A1 (en) * 2002-12-17 2004-07-14 Ethertronics, Inc. Antennas with reduced space and improved performance
WO2004057701A1 (en) 2002-12-22 2004-07-08 Fractus S.A. Multi-band monopole antenna for a mobile communications device
EP1709704A2 (en) 2004-01-30 2006-10-11 Fractus, S.A. Multi-band monopole antennas for mobile communications devices
TWI246226B (en) * 2004-10-14 2005-12-21 Mediatek Inc Dual band antenna device, wireless communication device and radio frequency chip using the same
CN101099265B (en) * 2005-01-05 2012-04-04 株式会社村田制作所 Antenna structure and wireless communication unit having the same
EP1764866A1 (en) 2005-09-15 2007-03-21 Infineon Tehnologies AG Miniaturized integrated monopole antenna
DE102005049820A1 (en) * 2005-10-18 2007-04-19 Benq Mobile Gmbh & Co. Ohg Multi-resonant antenna unit, associated printed circuit board and radio communication device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2647211A (en) * 1949-01-11 1953-07-28 Lynne C Smeby Radio antenna
JPH057109A (en) * 1991-06-27 1993-01-14 Mitsubishi Electric Corp Built-in antenna for portable telephone set
US5289198A (en) * 1992-08-21 1994-02-22 The United States Of America As Represented By The Secretary Of The Air Force Double-folded monopole
US5363114A (en) * 1990-01-29 1994-11-08 Shoemaker Kevin O Planar serpentine antennas
US5526007A (en) * 1992-03-26 1996-06-11 Aisin Seiki Kabushiki Kaisha Wire antenna for circularly polarized wave
EP0814536A2 (en) * 1996-06-20 1997-12-29 Kabushiki Kaisha Yokowo Antenna and radio apparatus using same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2647211A (en) * 1949-01-11 1953-07-28 Lynne C Smeby Radio antenna
US5363114A (en) * 1990-01-29 1994-11-08 Shoemaker Kevin O Planar serpentine antennas
JPH057109A (en) * 1991-06-27 1993-01-14 Mitsubishi Electric Corp Built-in antenna for portable telephone set
US5526007A (en) * 1992-03-26 1996-06-11 Aisin Seiki Kabushiki Kaisha Wire antenna for circularly polarized wave
US5289198A (en) * 1992-08-21 1994-02-22 The United States Of America As Represented By The Secretary Of The Air Force Double-folded monopole
EP0814536A2 (en) * 1996-06-20 1997-12-29 Kabushiki Kaisha Yokowo Antenna and radio apparatus using same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 264 (E - 1370) 24 May 1993 (1993-05-24) *
ROEDERER A G: "THE CROSS ANTENNA: A NEW LOW-PROFILE CIRCULARLY POLARIZED RADIATOR", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION,US,IEEE INC. NEW YORK, vol. 38, no. 5, 1 May 1990 (1990-05-01), pages 704 - 710, XP000135617, ISSN: 0018-926X *

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8009111B2 (en) 1999-09-20 2011-08-30 Fractus, S.A. Multilevel antennae
US8154462B2 (en) 1999-09-20 2012-04-10 Fractus, S.A. Multilevel antennae
US8154463B2 (en) 1999-09-20 2012-04-10 Fractus, S.A. Multilevel antennae
US8330659B2 (en) 1999-09-20 2012-12-11 Fractus, S.A. Multilevel antennae
US8941541B2 (en) 1999-09-20 2015-01-27 Fractus, S.A. Multilevel antennae
US8976069B2 (en) 1999-09-20 2015-03-10 Fractus, S.A. Multilevel antennae
US9000985B2 (en) 1999-09-20 2015-04-07 Fractus, S.A. Multilevel antennae
US9054421B2 (en) 1999-09-20 2015-06-09 Fractus, S.A. Multilevel antennae
US9240632B2 (en) 1999-09-20 2016-01-19 Fractus, S.A. Multilevel antennae
US9362617B2 (en) 1999-09-20 2016-06-07 Fractus, S.A. Multilevel antennae
US9331382B2 (en) 2000-01-19 2016-05-03 Fractus, S.A. Space-filling miniature antennas
US8738103B2 (en) 2006-07-18 2014-05-27 Fractus, S.A. Multiple-body-configuration multimedia and smartphone multifunction wireless devices

Also Published As

Publication number Publication date
FI980392A0 (en) 1998-02-20
EP0938158A2 (en) 1999-08-25
FI980392A (en) 1999-08-21

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