EP0818847A3 - Antenna construction - Google Patents

Antenna construction Download PDF

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Publication number
EP0818847A3
EP0818847A3 EP97810427A EP97810427A EP0818847A3 EP 0818847 A3 EP0818847 A3 EP 0818847A3 EP 97810427 A EP97810427 A EP 97810427A EP 97810427 A EP97810427 A EP 97810427A EP 0818847 A3 EP0818847 A3 EP 0818847A3
Authority
EP
European Patent Office
Prior art keywords
resonator element
antenna
antenna construction
metal surface
distance
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Withdrawn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
EP97810427A
Other languages
German (de)
French (fr)
Other versions
EP0818847A2 (en
Inventor
Ulrich Dr. Dersch
Matthias Liebendörfer
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.)
Ascom Tech AG
Original Assignee
Ascom Tech AG
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 Ascom Tech AG filed Critical Ascom Tech AG
Publication of EP0818847A2 publication Critical patent/EP0818847A2/en
Publication of EP0818847A3 publication Critical patent/EP0818847A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • 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

Landscapes

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

Abstract

Die insbesondere für Handfunktelefone nach dem GSM-Standard geeignete Antennenkonstruktion hat eine Metallfläche (1), welche ein boxförmiges Volumen begrenzt, und ein Resonatorelement (5), welches über eine Kante (2) der Metallfläche (1) abgewinkelt ist. Das Resonatorelement (5) kann z. B. durch ein asymmetrisch angeordnetes Kurzschlusselement (4) und eine Speisung (3.1) im erforderlichen Abstand gehalten werden. Die Bauhöhe einer solchen Antennenkonstruktion ist sehr flach, da der Abstand zwischen der Hauptfläche (1.2) und dem darüberliegenden Teil (5.2) des Resonatorelements (5) kleiner ist als derjenige zwischen der Stirnfläche (1.3) und dem L-förmig abgewinkelten Teil (5.1). Die Antenne hat eine Bandbreite von ca. 20% und eine hohe Effizienz.

Figure 00000001
The antenna construction, which is particularly suitable for hand-held radio telephones according to the GSM standard, has a metal surface (1) which limits a box-shaped volume and a resonator element (5) which is angled over an edge (2) of the metal surface (1). The resonator element (5) can, for. B. by an asymmetrically arranged short-circuit element (4) and a feed (3.1) can be kept at the required distance. The overall height of such an antenna construction is very flat, since the distance between the main surface (1.2) and the part (5.2) above it of the resonator element (5) is smaller than that between the end surface (1.3) and the L-shaped part (5.1) . The antenna has a bandwidth of approx. 20% and a high efficiency.
Figure 00000001
EP97810427A 1996-07-10 1997-07-02 Antenna construction Withdrawn EP0818847A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1731/96 1996-07-10
CH173196 1996-07-10

Publications (2)

Publication Number Publication Date
EP0818847A2 EP0818847A2 (en) 1998-01-14
EP0818847A3 true EP0818847A3 (en) 1998-12-02

Family

ID=4217283

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810427A Withdrawn EP0818847A3 (en) 1996-07-10 1997-07-02 Antenna construction

Country Status (1)

Country Link
EP (1) EP0818847A3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6184833B1 (en) 1998-02-23 2001-02-06 Qualcomm, Inc. Dual strip antenna
EP1137097A1 (en) * 2000-03-23 2001-09-26 Ascom Systec AG Antenna construction
JP2004128605A (en) * 2002-09-30 2004-04-22 Murata Mfg Co Ltd Antenna structure and communication system therewith
JP4013978B2 (en) * 2003-08-22 2007-11-28 株式会社村田製作所 Antenna structure and communication device using the same
US7119748B2 (en) 2004-12-31 2006-10-10 Nokia Corporation Internal multi-band antenna with planar strip elements
WO2006129239A1 (en) * 2005-05-31 2006-12-07 Nxp B.V. Planar antenna assembly with impedance matching and reduced user interaction, for a rf communication equipment.

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104504A (en) * 1981-12-16 1983-06-22 Matsushita Electric Ind Co Ltd Antenna for radio equipment
JPS6047522A (en) * 1983-08-26 1985-03-14 Nippon Telegr & Teleph Corp <Ntt> Portable radio equipment
WO1991002386A1 (en) * 1989-07-27 1991-02-21 SIEMENS AKTIENGESELLSCHAFT öSTERREICH Transmitting and receiving arrangement for portable appliances
GB2240219A (en) * 1989-12-11 1991-07-24 Nec Corp Mobile radio communication apparatus
WO1995024746A1 (en) * 1994-03-08 1995-09-14 Cetelco Cellular Telephone Company A/S Hand-held transmitting and/or receiving apparatus
GB2301485A (en) * 1995-05-29 1996-12-04 Mitsubishi Electric Corp Antenna arrangement for portable radio

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05299929A (en) * 1992-04-22 1993-11-12 Sony Corp Antenna

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104504A (en) * 1981-12-16 1983-06-22 Matsushita Electric Ind Co Ltd Antenna for radio equipment
JPS6047522A (en) * 1983-08-26 1985-03-14 Nippon Telegr & Teleph Corp <Ntt> Portable radio equipment
WO1991002386A1 (en) * 1989-07-27 1991-02-21 SIEMENS AKTIENGESELLSCHAFT öSTERREICH Transmitting and receiving arrangement for portable appliances
GB2240219A (en) * 1989-12-11 1991-07-24 Nec Corp Mobile radio communication apparatus
WO1995024746A1 (en) * 1994-03-08 1995-09-14 Cetelco Cellular Telephone Company A/S Hand-held transmitting and/or receiving apparatus
GB2301485A (en) * 1995-05-29 1996-12-04 Mitsubishi Electric Corp Antenna arrangement for portable radio

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 7, no. 208 (E - 198) 14 September 1983 (1983-09-14) *
PATENT ABSTRACTS OF JAPAN vol. 9, no. 178 (E - 330) 23 July 1985 (1985-07-23) *

Also Published As

Publication number Publication date
EP0818847A2 (en) 1998-01-14

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