EP0588271A1 - Radio émetteur-récepteur portable à faible irradiation électromagnétique de l'utilisateur et comportant une antenne ayant un diagramme de rayonnement asymétrique - Google Patents

Radio émetteur-récepteur portable à faible irradiation électromagnétique de l'utilisateur et comportant une antenne ayant un diagramme de rayonnement asymétrique Download PDF

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Publication number
EP0588271A1
EP0588271A1 EP93114643A EP93114643A EP0588271A1 EP 0588271 A1 EP0588271 A1 EP 0588271A1 EP 93114643 A EP93114643 A EP 93114643A EP 93114643 A EP93114643 A EP 93114643A EP 0588271 A1 EP0588271 A1 EP 0588271A1
Authority
EP
European Patent Office
Prior art keywords
antenna
user
irradiation
handset
portable transceiver
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
EP93114643A
Other languages
German (de)
English (en)
Other versions
EP0588271B1 (fr
Inventor
Claudio Maggio
Luigi Panico
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.)
Alcatel Lucent SAS
Original Assignee
Alcatel Italia SpA
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 Alcatel Italia SpA filed Critical Alcatel Italia SpA
Publication of EP0588271A1 publication Critical patent/EP0588271A1/fr
Application granted granted Critical
Publication of EP0588271B1 publication Critical patent/EP0588271B1/fr
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
    • H01Q1/245—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 means for shaping the antenna pattern, e.g. in order to protect user against rf exposure

Definitions

  • the present invention relates to a portable transceiver apparatus, in particular a radiomobile telephone set, with low irradiation of the user, including a handset and an antenna applied to said handset.
  • FIGs. 1 and 2 there are illustrated schematically in a side view two of such sets nowadays extensively used on the market, in particular in Fig. 1 the Motorola 8800X model and in Fig. 2 the 9800X one; however the schematic side view of Fig. 1 is the view of all the portable transceiver apparatuses.
  • Such apparatuses basically comprise a handset AC and an antenna AA applied to the handset.
  • Located inside said handset generally are a loudspeaker AL, a microphone AM, a control panel AK and the circuitry for operating the apparatus.
  • the antenna AA of a radiomobile telephone set and, more in general, of a portable transceiver apparatus is placed in the upper portion of the handset AC; several models, all of the retractile and fixed whip type are available.
  • Fig. 3 e.g., there is shown one of many possible radiation patterns RD of the assembly formed by handset AC and antenna AA in accordance with the present invention, represented in overlap to an apparatus and to the head U of its user.
  • Such radiation patterns having special shape can be obtained through suitable choice of the type and shape of antenna AA.
  • a first possibility consists in using a screened whip antenna. Another possibility is to use high frequency antenna arrays.
  • Such arrays basically comprise at least one horizontal-dipole radiator located at a suitable distance from a horizontal conducting plane.
  • Several dipoles may be placed in parallel to form bays and several bays can be associated to form curtains.
  • the radiation pattern assumes special shapes respectively increasing the vertical and horizontal directivity.
  • At least one reflector can be placed in the back zone to limit the radiation pattern in suitable directions; such reflectors can be constituted by tuned dipoles operating in a passive manner, or by a vertical reflecting screen, composed of densely-spaced horizontal turns.
  • antennas usable individually or in array fashion are, e.g., horizontal rhombic antennas, long singlewire antennas, horizontal V antennas both resonant and terminated.
  • the antenna when the apparatus is not in use, the antenna can be located inside it and, when the apparatus is to be used, it can be drawn out by sliding or by turning over; this in order to reduce the overall dimensions and the handiness of the apparatus when not in use, of course.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Support Of Aerials (AREA)
  • Transceivers (AREA)
  • Transmitters (AREA)
  • Telephone Set Structure (AREA)
  • Lock And Its Accessories (AREA)
  • Adornments (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Medicinal Preparation (AREA)
  • Details Of Aerials (AREA)
EP93114643A 1992-09-18 1993-09-11 Radio émetteur-récepteur portable à faible irradiation électromagnétique de l'utilisateur et comportant une antenne ayant un diagramme de rayonnement asymétrique Expired - Lifetime EP0588271B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI922146A IT1255602B (it) 1992-09-18 1992-09-18 Apparecchio ricetrasmettitore portatile a bassa irradiazione dell'utente, utilizzante una antenna avente diagramma di irradiazione asimmetrico.
ITMI922146 1992-09-18

Publications (2)

Publication Number Publication Date
EP0588271A1 true EP0588271A1 (fr) 1994-03-23
EP0588271B1 EP0588271B1 (fr) 1998-05-06

Family

ID=11363964

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93114643A Expired - Lifetime EP0588271B1 (fr) 1992-09-18 1993-09-11 Radio émetteur-récepteur portable à faible irradiation électromagnétique de l'utilisateur et comportant une antenne ayant un diagramme de rayonnement asymétrique

Country Status (8)

Country Link
EP (1) EP0588271B1 (fr)
AT (1) ATE165942T1 (fr)
AU (1) AU668748B2 (fr)
DE (1) DE69318361T2 (fr)
DK (1) DK0588271T3 (fr)
ES (1) ES2116378T3 (fr)
IT (1) IT1255602B (fr)
NZ (1) NZ248624A (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994028595A1 (fr) * 1993-05-27 1994-12-08 Griffith University Antennes destinees a des dispositifs de communications portables
WO1995002284A1 (fr) * 1993-07-09 1995-01-19 Telefonaktiebolaget Lm Ericsson (Publ) Dispositif et antenne de radiocommunication sans fil
EP0638955A1 (fr) * 1993-08-04 1995-02-15 Philips Patentverwaltung GmbH Poste de radio avec une antenne
WO1997044911A1 (fr) * 1996-05-17 1997-11-27 Ryhaenen Heikki Procede et dispositif visant a eliminer ou a restreindre localement un champ de rayonnement a frequence radioelectrique
EP0763265A4 (fr) * 1994-05-31 1998-07-22 Motorola Inc Antenne et son procede de fabrication
WO1999003167A1 (fr) * 1997-07-09 1999-01-21 Allgon Ab Telephone portable dote d'un dispositif d'absorption des rayonnements
WO1999005753A1 (fr) * 1997-07-22 1999-02-04 Matsushita Communication Industrial (Uk) Ltd. Telephone a diverses configurations d'antennes
US6005525A (en) * 1997-04-11 1999-12-21 Nokia Mobile Phones Limited Antenna arrangement for small-sized radio communication devices
US6181297B1 (en) 1994-08-25 2001-01-30 Symmetricom, Inc. Antenna
US6288682B1 (en) 1996-03-14 2001-09-11 Griffith University Directional antenna assembly
US6300917B1 (en) 1999-05-27 2001-10-09 Sarantel Limited Antenna
US6369776B1 (en) 1999-02-08 2002-04-09 Sarantel Limited Antenna
US6552693B1 (en) 1998-12-29 2003-04-22 Sarantel Limited Antenna
US6690336B1 (en) 1998-06-16 2004-02-10 Symmetricom, Inc. Antenna
CN110501614A (zh) * 2019-08-31 2019-11-26 广东电网有限责任公司 适用于电磁暂态仿真的电动机负荷暂态过程计算方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0214806A2 (fr) * 1985-08-29 1987-03-18 Nec Corporation Radio portable
EP0339629A2 (fr) * 1988-04-27 1989-11-02 Motorola, Inc. Antenne interne à large bande

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4876709A (en) * 1988-09-08 1989-10-24 Dynascan Corporation Antenna for cordless telephone system
FR2701613B1 (fr) * 1993-02-11 1995-03-31 Alcatel Radiotelephone Appareil émetteur-récepteur radiotéléphonique portatif.

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0214806A2 (fr) * 1985-08-29 1987-03-18 Nec Corporation Radio portable
EP0339629A2 (fr) * 1988-04-27 1989-11-02 Motorola, Inc. Antenne interne à large bande

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
JASIK: "Antenna Engineering Handbook", 1975, MCGRAW-HILL, NEW YORK, 9451 *

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6034638A (en) * 1993-05-27 2000-03-07 Griffith University Antennas for use in portable communications devices
WO1994028595A1 (fr) * 1993-05-27 1994-12-08 Griffith University Antennes destinees a des dispositifs de communications portables
WO1995002284A1 (fr) * 1993-07-09 1995-01-19 Telefonaktiebolaget Lm Ericsson (Publ) Dispositif et antenne de radiocommunication sans fil
NL9302192A (nl) * 1993-07-09 1995-02-01 Ericsson Business Mobile Netwo Draadloze telefoon.
AU686214B2 (en) * 1993-07-09 1998-02-05 Telefonaktiebolaget Lm Ericsson (Publ) Device and antenna for cordless radio communication
US5802458A (en) * 1993-07-09 1998-09-01 Telefoanktiebolaget Lm Ericsson Device and antenna for cordless radio communication including radio signal attenuation mechanism
EP0638955A1 (fr) * 1993-08-04 1995-02-15 Philips Patentverwaltung GmbH Poste de radio avec une antenne
EP0763265A4 (fr) * 1994-05-31 1998-07-22 Motorola Inc Antenne et son procede de fabrication
US6181297B1 (en) 1994-08-25 2001-01-30 Symmetricom, Inc. Antenna
US6288682B1 (en) 1996-03-14 2001-09-11 Griffith University Directional antenna assembly
WO1997044911A1 (fr) * 1996-05-17 1997-11-27 Ryhaenen Heikki Procede et dispositif visant a eliminer ou a restreindre localement un champ de rayonnement a frequence radioelectrique
US6005525A (en) * 1997-04-11 1999-12-21 Nokia Mobile Phones Limited Antenna arrangement for small-sized radio communication devices
WO1999003167A1 (fr) * 1997-07-09 1999-01-21 Allgon Ab Telephone portable dote d'un dispositif d'absorption des rayonnements
WO1999005753A1 (fr) * 1997-07-22 1999-02-04 Matsushita Communication Industrial (Uk) Ltd. Telephone a diverses configurations d'antennes
US6690336B1 (en) 1998-06-16 2004-02-10 Symmetricom, Inc. Antenna
US6552693B1 (en) 1998-12-29 2003-04-22 Sarantel Limited Antenna
US6369776B1 (en) 1999-02-08 2002-04-09 Sarantel Limited Antenna
US6300917B1 (en) 1999-05-27 2001-10-09 Sarantel Limited Antenna
CN110501614A (zh) * 2019-08-31 2019-11-26 广东电网有限责任公司 适用于电磁暂态仿真的电动机负荷暂态过程计算方法

Also Published As

Publication number Publication date
ES2116378T3 (es) 1998-07-16
EP0588271B1 (fr) 1998-05-06
ITMI922146A1 (it) 1994-03-18
DE69318361D1 (de) 1998-06-10
NZ248624A (en) 1996-01-26
IT1255602B (it) 1995-11-09
DK0588271T3 (da) 1998-10-07
ATE165942T1 (de) 1998-05-15
DE69318361T2 (de) 1999-04-01
AU4607593A (en) 1994-03-24
AU668748B2 (en) 1996-05-16
ITMI922146A0 (it) 1992-09-18

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